./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_lcr-var-start-time.4.1.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 2218bd3b5024885ce258db0decccc6cd77d5db224efd54b84e54987ad5abfa77 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 19:26:24,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 19:26:24,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 19:26:24,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 19:26:24,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 19:26:24,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 19:26:24,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 19:26:24,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 19:26:24,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 19:26:24,511 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 19:26:24,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 19:26:24,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 19:26:24,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 19:26:24,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 19:26:24,512 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 19:26:24,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 19:26:24,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 19:26:24,512 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 19:26:24,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 19:26:24,513 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 19:26:24,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 19:26:24,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 19:26:24,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 19:26:24,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 19:26:24,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:26:24,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 19:26:24,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 19:26:24,515 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 -> 2218bd3b5024885ce258db0decccc6cd77d5db224efd54b84e54987ad5abfa77 [2025-03-16 19:26:24,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 19:26:24,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 19:26:24,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 19:26:24,737 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 19:26:24,737 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 19:26:24,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-16 19:26:25,863 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137ed527c/6334c48bdfd4492daf78f640c5e50c81/FLAG19ba8754e [2025-03-16 19:26:26,133 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 19:26:26,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-16 19:26:26,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137ed527c/6334c48bdfd4492daf78f640c5e50c81/FLAG19ba8754e [2025-03-16 19:26:26,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137ed527c/6334c48bdfd4492daf78f640c5e50c81 [2025-03-16 19:26:26,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 19:26:26,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 19:26:26,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 19:26:26,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 19:26:26,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 19:26:26,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22da2d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26, skipping insertion in model container [2025-03-16 19:26:26,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 19:26:26,640 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2025-03-16 19:26:26,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:26:26,710 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 19:26:26,757 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2025-03-16 19:26:26,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:26:26,808 INFO L204 MainTranslator]: Completed translation [2025-03-16 19:26:26,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26 WrapperNode [2025-03-16 19:26:26,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 19:26:26,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 19:26:26,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 19:26:26,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 19:26:26,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,843 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 723 [2025-03-16 19:26:26,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 19:26:26,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 19:26:26,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 19:26:26,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 19:26:26,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,874 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]. [2025-03-16 19:26:26,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,881 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 19:26:26,890 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 19:26:26,890 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 19:26:26,890 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 19:26:26,891 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (1/1) ... [2025-03-16 19:26:26,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:26:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:26:26,917 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) [2025-03-16 19:26:26,921 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 [2025-03-16 19:26:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 19:26:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 19:26:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 19:26:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 19:26:27,024 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 19:26:27,026 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L203: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L600: havoc main_~node3____CPAchecker_TMP_1~0#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1113: havoc main_~node1____CPAchecker_TMP_1~1#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L981: havoc main_~node4____CPAchecker_TMP_1~1#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L486: havoc main_~node4____CPAchecker_TMP_0~1#1; [2025-03-16 19:26:27,518 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L421: havoc main_~node3__m3~2#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L686: havoc main_~node2____CPAchecker_TMP_1~0#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node4__m4~2#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L572: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1069: havoc main_~node2____CPAchecker_TMP_1~1#1; [2025-03-16 19:26:27,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L658: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L380: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L182: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1025: havoc main_~node3____CPAchecker_TMP_1~1#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L778: havoc main_~node1____CPAchecker_TMP_1~0#1; [2025-03-16 19:26:27,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L514: havoc main_~node4____CPAchecker_TMP_1~0#1; [2025-03-16 19:26:27,556 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-03-16 19:26:27,556 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 19:26:27,570 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 19:26:27,570 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 19:26:27,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:26:27 BoogieIcfgContainer [2025-03-16 19:26:27,571 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 19:26:27,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 19:26:27,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 19:26:27,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 19:26:27,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 07:26:26" (1/3) ... [2025-03-16 19:26:27,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1763338f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:26:27, skipping insertion in model container [2025-03-16 19:26:27,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:26:26" (2/3) ... [2025-03-16 19:26:27,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1763338f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:26:27, skipping insertion in model container [2025-03-16 19:26:27,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:26:27" (3/3) ... [2025-03-16 19:26:27,579 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-16 19:26:27,592 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 19:26:27,593 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 178 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 19:26:27,635 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 19:26:27,645 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;@238547c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 19:26:27,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 19:26:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7215909090909092) internal successors, (303), 177 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-16 19:26:27,655 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:27,656 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] [2025-03-16 19:26:27,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:27,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -179207189, now seen corresponding path program 1 times [2025-03-16 19:26:27,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:27,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180198081] [2025-03-16 19:26:27,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:27,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:27,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-16 19:26:27,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-16 19:26:27,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:27,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180198081] [2025-03-16 19:26:28,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180198081] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:28,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:28,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:28,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191112111] [2025-03-16 19:26:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:28,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:28,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:28,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:28,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:28,157 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7215909090909092) internal successors, (303), 177 states have internal predecessors, (303), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:28,358 INFO L93 Difference]: Finished difference Result 638 states and 1033 transitions. [2025-03-16 19:26:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:28,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2025-03-16 19:26:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:28,372 INFO L225 Difference]: With dead ends: 638 [2025-03-16 19:26:28,373 INFO L226 Difference]: Without dead ends: 539 [2025-03-16 19:26:28,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:28,379 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 1458 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:28,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1826 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:26:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-03-16 19:26:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 273. [2025-03-16 19:26:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.5147058823529411) internal successors, (412), 272 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 412 transitions. [2025-03-16 19:26:28,434 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 412 transitions. Word has length 63 [2025-03-16 19:26:28,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:28,435 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 412 transitions. [2025-03-16 19:26:28,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 412 transitions. [2025-03-16 19:26:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-16 19:26:28,438 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:28,438 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] [2025-03-16 19:26:28,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 19:26:28,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:28,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:28,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1259494779, now seen corresponding path program 1 times [2025-03-16 19:26:28,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:28,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801957202] [2025-03-16 19:26:28,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:28,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:28,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-16 19:26:28,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-16 19:26:28,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:28,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:28,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:28,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801957202] [2025-03-16 19:26:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801957202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:28,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:28,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:28,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34255570] [2025-03-16 19:26:28,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:28,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:28,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:28,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:28,683 INFO L87 Difference]: Start difference. First operand 273 states and 412 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:28,821 INFO L93 Difference]: Finished difference Result 1011 states and 1564 transitions. [2025-03-16 19:26:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:28,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-03-16 19:26:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:28,825 INFO L225 Difference]: With dead ends: 1011 [2025-03-16 19:26:28,825 INFO L226 Difference]: Without dead ends: 799 [2025-03-16 19:26:28,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:28,828 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 818 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:28,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 748 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:26:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2025-03-16 19:26:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 793. [2025-03-16 19:26:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 792 states have (on average 1.5366161616161615) internal successors, (1217), 792 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1217 transitions. [2025-03-16 19:26:28,868 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1217 transitions. Word has length 64 [2025-03-16 19:26:28,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:28,869 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1217 transitions. [2025-03-16 19:26:28,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1217 transitions. [2025-03-16 19:26:28,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-16 19:26:28,872 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:28,872 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] [2025-03-16 19:26:28,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 19:26:28,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:28,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash -794862134, now seen corresponding path program 1 times [2025-03-16 19:26:28,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:28,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737373300] [2025-03-16 19:26:28,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:28,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:28,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-16 19:26:28,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-16 19:26:28,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:28,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:28,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:28,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737373300] [2025-03-16 19:26:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737373300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:28,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:28,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:26:28,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176508946] [2025-03-16 19:26:28,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:28,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:26:28,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:28,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:26:28,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:28,989 INFO L87 Difference]: Start difference. First operand 793 states and 1217 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:29,168 INFO L93 Difference]: Finished difference Result 2015 states and 3139 transitions. [2025-03-16 19:26:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:26:29,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2025-03-16 19:26:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:29,177 INFO L225 Difference]: With dead ends: 2015 [2025-03-16 19:26:29,178 INFO L226 Difference]: Without dead ends: 1321 [2025-03-16 19:26:29,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:29,180 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 933 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:29,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 251 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:26:29,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2025-03-16 19:26:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1319. [2025-03-16 19:26:29,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1318 states have (on average 1.547040971168437) internal successors, (2039), 1318 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2039 transitions. [2025-03-16 19:26:29,217 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2039 transitions. Word has length 65 [2025-03-16 19:26:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:29,218 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 2039 transitions. [2025-03-16 19:26:29,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2039 transitions. [2025-03-16 19:26:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-16 19:26:29,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:29,220 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] [2025-03-16 19:26:29,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 19:26:29,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:29,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1823154058, now seen corresponding path program 1 times [2025-03-16 19:26:29,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:29,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392879864] [2025-03-16 19:26:29,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:29,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:29,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-16 19:26:29,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-16 19:26:29,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:29,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:29,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:29,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392879864] [2025-03-16 19:26:29,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392879864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:29,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:29,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:26:29,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316444187] [2025-03-16 19:26:29,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:29,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:26:29,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:29,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:26:29,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:29,344 INFO L87 Difference]: Start difference. First operand 1319 states and 2039 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:29,546 INFO L93 Difference]: Finished difference Result 3646 states and 5686 transitions. [2025-03-16 19:26:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:26:29,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2025-03-16 19:26:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:29,555 INFO L225 Difference]: With dead ends: 3646 [2025-03-16 19:26:29,556 INFO L226 Difference]: Without dead ends: 2399 [2025-03-16 19:26:29,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:29,558 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 959 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:29,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 249 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:26:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2025-03-16 19:26:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2397. [2025-03-16 19:26:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 1.5505008347245408) internal successors, (3715), 2396 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 3715 transitions. [2025-03-16 19:26:29,632 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 3715 transitions. Word has length 65 [2025-03-16 19:26:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:29,633 INFO L471 AbstractCegarLoop]: Abstraction has 2397 states and 3715 transitions. [2025-03-16 19:26:29,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 3715 transitions. [2025-03-16 19:26:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-16 19:26:29,635 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:29,635 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] [2025-03-16 19:26:29,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 19:26:29,636 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:29,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 619785506, now seen corresponding path program 1 times [2025-03-16 19:26:29,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:29,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656941464] [2025-03-16 19:26:29,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:29,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:29,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-16 19:26:29,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-16 19:26:29,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:29,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:29,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:29,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656941464] [2025-03-16 19:26:29,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656941464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:29,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:26:29,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613697280] [2025-03-16 19:26:29,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:29,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:26:29,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:29,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:26:29,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:29,751 INFO L87 Difference]: Start difference. First operand 2397 states and 3715 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:29,945 INFO L93 Difference]: Finished difference Result 6923 states and 10787 transitions. [2025-03-16 19:26:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:26:29,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2025-03-16 19:26:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:29,960 INFO L225 Difference]: With dead ends: 6923 [2025-03-16 19:26:29,961 INFO L226 Difference]: Without dead ends: 4575 [2025-03-16 19:26:29,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:29,966 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 985 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:29,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 247 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:26:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2025-03-16 19:26:30,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4573. [2025-03-16 19:26:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4572 states have (on average 1.5485564304461943) internal successors, (7080), 4572 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7080 transitions. [2025-03-16 19:26:30,074 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7080 transitions. Word has length 65 [2025-03-16 19:26:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:30,074 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7080 transitions. [2025-03-16 19:26:30,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7080 transitions. [2025-03-16 19:26:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-16 19:26:30,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:30,077 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] [2025-03-16 19:26:30,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 19:26:30,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:30,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:30,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1057012786, now seen corresponding path program 1 times [2025-03-16 19:26:30,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355559631] [2025-03-16 19:26:30,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:30,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-16 19:26:30,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-16 19:26:30,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:30,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:30,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:30,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355559631] [2025-03-16 19:26:30,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355559631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:30,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:30,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:26:30,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30599249] [2025-03-16 19:26:30,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:30,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:26:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:30,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:26:30,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:30,196 INFO L87 Difference]: Start difference. First operand 4573 states and 7080 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:30,420 INFO L93 Difference]: Finished difference Result 13471 states and 20915 transitions. [2025-03-16 19:26:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:26:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2025-03-16 19:26:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:30,445 INFO L225 Difference]: With dead ends: 13471 [2025-03-16 19:26:30,446 INFO L226 Difference]: Without dead ends: 8931 [2025-03-16 19:26:30,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:30,453 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1009 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:30,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 245 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:26:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8931 states. [2025-03-16 19:26:30,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8931 to 8929. [2025-03-16 19:26:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8929 states, 8928 states have (on average 1.5408826164874552) internal successors, (13757), 8928 states have internal predecessors, (13757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8929 states to 8929 states and 13757 transitions. [2025-03-16 19:26:30,632 INFO L78 Accepts]: Start accepts. Automaton has 8929 states and 13757 transitions. Word has length 65 [2025-03-16 19:26:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:30,632 INFO L471 AbstractCegarLoop]: Abstraction has 8929 states and 13757 transitions. [2025-03-16 19:26:30,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8929 states and 13757 transitions. [2025-03-16 19:26:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-16 19:26:30,634 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:30,634 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] [2025-03-16 19:26:30,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 19:26:30,635 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:30,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2012453145, now seen corresponding path program 1 times [2025-03-16 19:26:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941641128] [2025-03-16 19:26:30,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:30,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-16 19:26:30,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-16 19:26:30,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:30,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:30,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:30,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941641128] [2025-03-16 19:26:30,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941641128] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:30,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:30,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 19:26:30,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432887865] [2025-03-16 19:26:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:30,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:26:30,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:30,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:26:30,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:30,861 INFO L87 Difference]: Start difference. First operand 8929 states and 13757 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:30,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:30,899 INFO L93 Difference]: Finished difference Result 9187 states and 14142 transitions. [2025-03-16 19:26:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:26:30,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2025-03-16 19:26:30,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:30,924 INFO L225 Difference]: With dead ends: 9187 [2025-03-16 19:26:30,924 INFO L226 Difference]: Without dead ends: 9185 [2025-03-16 19:26:30,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:26:30,928 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:30,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 966 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9185 states. [2025-03-16 19:26:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9185 to 9185. [2025-03-16 19:26:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9185 states, 9184 states have (on average 1.5258057491289199) internal successors, (14013), 9184 states have internal predecessors, (14013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9185 states to 9185 states and 14013 transitions. [2025-03-16 19:26:31,062 INFO L78 Accepts]: Start accepts. Automaton has 9185 states and 14013 transitions. Word has length 66 [2025-03-16 19:26:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:31,063 INFO L471 AbstractCegarLoop]: Abstraction has 9185 states and 14013 transitions. [2025-03-16 19:26:31,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:31,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9185 states and 14013 transitions. [2025-03-16 19:26:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-16 19:26:31,065 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:31,065 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] [2025-03-16 19:26:31,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 19:26:31,065 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:31,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2043235977, now seen corresponding path program 1 times [2025-03-16 19:26:31,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:31,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220687660] [2025-03-16 19:26:31,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:31,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:31,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-16 19:26:31,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-16 19:26:31,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:31,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:31,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220687660] [2025-03-16 19:26:31,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220687660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:31,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:31,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:26:31,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79180377] [2025-03-16 19:26:31,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:31,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:26:31,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:31,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:26:31,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:31,304 INFO L87 Difference]: Start difference. First operand 9185 states and 14013 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:31,707 INFO L93 Difference]: Finished difference Result 11918 states and 18029 transitions. [2025-03-16 19:26:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-16 19:26:31,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2025-03-16 19:26:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:31,724 INFO L225 Difference]: With dead ends: 11918 [2025-03-16 19:26:31,724 INFO L226 Difference]: Without dead ends: 10626 [2025-03-16 19:26:31,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-16 19:26:31,730 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 988 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:31,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 754 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:26:31,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2025-03-16 19:26:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 9185. [2025-03-16 19:26:31,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9185 states, 9184 states have (on average 1.5256968641114983) internal successors, (14012), 9184 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9185 states to 9185 states and 14012 transitions. [2025-03-16 19:26:31,849 INFO L78 Accepts]: Start accepts. Automaton has 9185 states and 14012 transitions. Word has length 67 [2025-03-16 19:26:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:31,850 INFO L471 AbstractCegarLoop]: Abstraction has 9185 states and 14012 transitions. [2025-03-16 19:26:31,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 9185 states and 14012 transitions. [2025-03-16 19:26:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-16 19:26:31,851 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:31,851 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] [2025-03-16 19:26:31,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 19:26:31,852 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:31,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -391824887, now seen corresponding path program 1 times [2025-03-16 19:26:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:31,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541757322] [2025-03-16 19:26:31,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:31,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:31,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-16 19:26:31,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-16 19:26:31,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:31,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:32,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:32,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541757322] [2025-03-16 19:26:32,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541757322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:32,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:32,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:26:32,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307541140] [2025-03-16 19:26:32,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:32,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:26:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:32,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:26:32,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:32,122 INFO L87 Difference]: Start difference. First operand 9185 states and 14012 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:32,684 INFO L93 Difference]: Finished difference Result 15690 states and 23730 transitions. [2025-03-16 19:26:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:26:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2025-03-16 19:26:32,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:32,706 INFO L225 Difference]: With dead ends: 15690 [2025-03-16 19:26:32,706 INFO L226 Difference]: Without dead ends: 12113 [2025-03-16 19:26:32,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-03-16 19:26:32,714 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1127 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:32,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 795 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:26:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12113 states. [2025-03-16 19:26:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12113 to 9353. [2025-03-16 19:26:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 9352 states have (on average 1.5229897348160821) internal successors, (14243), 9352 states have internal predecessors, (14243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 14243 transitions. [2025-03-16 19:26:32,901 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 14243 transitions. Word has length 67 [2025-03-16 19:26:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:32,901 INFO L471 AbstractCegarLoop]: Abstraction has 9353 states and 14243 transitions. [2025-03-16 19:26:32,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 14243 transitions. [2025-03-16 19:26:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-16 19:26:32,904 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:32,904 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] [2025-03-16 19:26:32,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 19:26:32,905 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:32,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:32,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1755276681, now seen corresponding path program 1 times [2025-03-16 19:26:32,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:32,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625117258] [2025-03-16 19:26:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:32,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-16 19:26:32,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-16 19:26:32,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:32,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:33,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625117258] [2025-03-16 19:26:33,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625117258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:33,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:33,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:26:33,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553815721] [2025-03-16 19:26:33,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:33,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:26:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:33,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:26:33,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:33,132 INFO L87 Difference]: Start difference. First operand 9353 states and 14243 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:33,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:33,701 INFO L93 Difference]: Finished difference Result 19362 states and 29248 transitions. [2025-03-16 19:26:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:26:33,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2025-03-16 19:26:33,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:33,723 INFO L225 Difference]: With dead ends: 19362 [2025-03-16 19:26:33,723 INFO L226 Difference]: Without dead ends: 13522 [2025-03-16 19:26:33,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-03-16 19:26:33,732 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1064 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:33,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 845 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:26:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13522 states. [2025-03-16 19:26:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13522 to 9541. [2025-03-16 19:26:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9541 states, 9540 states have (on average 1.5183438155136268) internal successors, (14485), 9540 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9541 states to 9541 states and 14485 transitions. [2025-03-16 19:26:33,873 INFO L78 Accepts]: Start accepts. Automaton has 9541 states and 14485 transitions. Word has length 67 [2025-03-16 19:26:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:33,873 INFO L471 AbstractCegarLoop]: Abstraction has 9541 states and 14485 transitions. [2025-03-16 19:26:33,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9541 states and 14485 transitions. [2025-03-16 19:26:33,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-16 19:26:33,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:33,875 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] [2025-03-16 19:26:33,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 19:26:33,876 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:33,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1063792375, now seen corresponding path program 1 times [2025-03-16 19:26:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267708774] [2025-03-16 19:26:33,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:33,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-16 19:26:33,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-16 19:26:33,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:33,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:34,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:34,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267708774] [2025-03-16 19:26:34,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267708774] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:34,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:34,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:26:34,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415963420] [2025-03-16 19:26:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:34,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:26:34,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:34,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:26:34,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:34,101 INFO L87 Difference]: Start difference. First operand 9541 states and 14485 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:34,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:34,741 INFO L93 Difference]: Finished difference Result 23504 states and 35480 transitions. [2025-03-16 19:26:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:26:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2025-03-16 19:26:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:34,765 INFO L225 Difference]: With dead ends: 23504 [2025-03-16 19:26:34,766 INFO L226 Difference]: Without dead ends: 14645 [2025-03-16 19:26:34,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-03-16 19:26:34,777 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 1018 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:34,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 948 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:26:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14645 states. [2025-03-16 19:26:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14645 to 9675. [2025-03-16 19:26:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9675 states, 9674 states have (on average 1.5121976431672524) internal successors, (14629), 9674 states have internal predecessors, (14629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9675 states to 9675 states and 14629 transitions. [2025-03-16 19:26:34,916 INFO L78 Accepts]: Start accepts. Automaton has 9675 states and 14629 transitions. Word has length 67 [2025-03-16 19:26:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:34,916 INFO L471 AbstractCegarLoop]: Abstraction has 9675 states and 14629 transitions. [2025-03-16 19:26:34,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9675 states and 14629 transitions. [2025-03-16 19:26:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-16 19:26:34,919 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:34,919 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] [2025-03-16 19:26:34,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 19:26:34,919 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:34,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1426294823, now seen corresponding path program 1 times [2025-03-16 19:26:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:34,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096016560] [2025-03-16 19:26:34,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:34,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-16 19:26:34,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-16 19:26:34,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:34,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:35,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096016560] [2025-03-16 19:26:35,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096016560] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:35,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:35,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:26:35,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086672501] [2025-03-16 19:26:35,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:35,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 19:26:35,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:35,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 19:26:35,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:26:35,013 INFO L87 Difference]: Start difference. First operand 9675 states and 14629 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:35,108 INFO L93 Difference]: Finished difference Result 25519 states and 38763 transitions. [2025-03-16 19:26:35,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 19:26:35,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-16 19:26:35,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:35,128 INFO L225 Difference]: With dead ends: 25519 [2025-03-16 19:26:35,128 INFO L226 Difference]: Without dead ends: 16941 [2025-03-16 19:26:35,133 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 [2025-03-16 19:26:35,133 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 170 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:35,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 604 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16941 states. [2025-03-16 19:26:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16941 to 16819. [2025-03-16 19:26:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16819 states, 16818 states have (on average 1.5013081222499702) internal successors, (25249), 16818 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16819 states to 16819 states and 25249 transitions. [2025-03-16 19:26:35,300 INFO L78 Accepts]: Start accepts. Automaton has 16819 states and 25249 transitions. Word has length 68 [2025-03-16 19:26:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:35,300 INFO L471 AbstractCegarLoop]: Abstraction has 16819 states and 25249 transitions. [2025-03-16 19:26:35,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 16819 states and 25249 transitions. [2025-03-16 19:26:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-16 19:26:35,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:35,303 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] [2025-03-16 19:26:35,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 19:26:35,303 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:35,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash 634624393, now seen corresponding path program 1 times [2025-03-16 19:26:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261847020] [2025-03-16 19:26:35,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:35,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:35,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-16 19:26:35,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-16 19:26:35,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:35,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:35,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:35,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261847020] [2025-03-16 19:26:35,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261847020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:35,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:35,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:35,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619429960] [2025-03-16 19:26:35,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:35,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:35,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:35,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:35,344 INFO L87 Difference]: Start difference. First operand 16819 states and 25249 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:35,433 INFO L93 Difference]: Finished difference Result 41237 states and 62108 transitions. [2025-03-16 19:26:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:35,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-16 19:26:35,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:35,479 INFO L225 Difference]: With dead ends: 41237 [2025-03-16 19:26:35,479 INFO L226 Difference]: Without dead ends: 27945 [2025-03-16 19:26:35,496 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 [2025-03-16 19:26:35,497 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 176 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:35,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 467 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27945 states. [2025-03-16 19:26:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27945 to 27895. [2025-03-16 19:26:35,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27895 states, 27894 states have (on average 1.49512439951244) internal successors, (41705), 27894 states have internal predecessors, (41705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27895 states to 27895 states and 41705 transitions. [2025-03-16 19:26:35,890 INFO L78 Accepts]: Start accepts. Automaton has 27895 states and 41705 transitions. Word has length 68 [2025-03-16 19:26:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:35,890 INFO L471 AbstractCegarLoop]: Abstraction has 27895 states and 41705 transitions. [2025-03-16 19:26:35,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:35,891 INFO L276 IsEmpty]: Start isEmpty. Operand 27895 states and 41705 transitions. [2025-03-16 19:26:35,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-16 19:26:35,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:35,894 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] [2025-03-16 19:26:35,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 19:26:35,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:35,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:35,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1924957304, now seen corresponding path program 1 times [2025-03-16 19:26:35,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351621660] [2025-03-16 19:26:35,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:35,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-16 19:26:35,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-16 19:26:35,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:35,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351621660] [2025-03-16 19:26:35,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351621660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:35,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545920523] [2025-03-16 19:26:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:35,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:35,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:35,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:35,934 INFO L87 Difference]: Start difference. First operand 27895 states and 41705 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:36,010 INFO L93 Difference]: Finished difference Result 39968 states and 59632 transitions. [2025-03-16 19:26:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-16 19:26:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:36,050 INFO L225 Difference]: With dead ends: 39968 [2025-03-16 19:26:36,051 INFO L226 Difference]: Without dead ends: 31008 [2025-03-16 19:26:36,066 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 [2025-03-16 19:26:36,066 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 145 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 557 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 [2025-03-16 19:26:36,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 557 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31008 states. [2025-03-16 19:26:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31008 to 27146. [2025-03-16 19:26:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27146 states, 27145 states have (on average 1.4692945293792596) internal successors, (39884), 27145 states have internal predecessors, (39884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27146 states to 27146 states and 39884 transitions. [2025-03-16 19:26:36,387 INFO L78 Accepts]: Start accepts. Automaton has 27146 states and 39884 transitions. Word has length 68 [2025-03-16 19:26:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:36,387 INFO L471 AbstractCegarLoop]: Abstraction has 27146 states and 39884 transitions. [2025-03-16 19:26:36,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 27146 states and 39884 transitions. [2025-03-16 19:26:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-16 19:26:36,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:36,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:26:36,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 19:26:36,390 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:36,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash 540165865, now seen corresponding path program 1 times [2025-03-16 19:26:36,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:36,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655900303] [2025-03-16 19:26:36,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:36,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:36,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-16 19:26:36,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-16 19:26:36,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:36,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:36,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:36,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655900303] [2025-03-16 19:26:36,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655900303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:36,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:36,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:36,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53591451] [2025-03-16 19:26:36,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:36,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:36,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:36,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:36,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:36,432 INFO L87 Difference]: Start difference. First operand 27146 states and 39884 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:36,531 INFO L93 Difference]: Finished difference Result 47200 states and 69423 transitions. [2025-03-16 19:26:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-16 19:26:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:36,570 INFO L225 Difference]: With dead ends: 47200 [2025-03-16 19:26:36,570 INFO L226 Difference]: Without dead ends: 31260 [2025-03-16 19:26:36,588 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 [2025-03-16 19:26:36,589 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 155 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:36,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 499 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31260 states. [2025-03-16 19:26:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31260 to 30846. [2025-03-16 19:26:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30846 states, 30845 states have (on average 1.4431836602366672) internal successors, (44515), 30845 states have internal predecessors, (44515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30846 states to 30846 states and 44515 transitions. [2025-03-16 19:26:36,986 INFO L78 Accepts]: Start accepts. Automaton has 30846 states and 44515 transitions. Word has length 68 [2025-03-16 19:26:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:36,986 INFO L471 AbstractCegarLoop]: Abstraction has 30846 states and 44515 transitions. [2025-03-16 19:26:36,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 30846 states and 44515 transitions. [2025-03-16 19:26:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-16 19:26:37,070 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:37,070 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] [2025-03-16 19:26:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-16 19:26:37,070 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash 705973480, now seen corresponding path program 1 times [2025-03-16 19:26:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:37,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155806150] [2025-03-16 19:26:37,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:37,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-16 19:26:37,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-16 19:26:37,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:37,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:37,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:37,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155806150] [2025-03-16 19:26:37,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155806150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:37,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:37,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:37,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288011468] [2025-03-16 19:26:37,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:37,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:37,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:37,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:37,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:37,111 INFO L87 Difference]: Start difference. First operand 30846 states and 44515 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:37,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:37,239 INFO L93 Difference]: Finished difference Result 60635 states and 87269 transitions. [2025-03-16 19:26:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:37,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-16 19:26:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:37,282 INFO L225 Difference]: With dead ends: 60635 [2025-03-16 19:26:37,282 INFO L226 Difference]: Without dead ends: 33743 [2025-03-16 19:26:37,305 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 [2025-03-16 19:26:37,306 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 165 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:37,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 464 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33743 states. [2025-03-16 19:26:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33743 to 33425. [2025-03-16 19:26:37,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33425 states, 33424 states have (on average 1.4062350406893251) internal successors, (47002), 33424 states have internal predecessors, (47002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33425 states to 33425 states and 47002 transitions. [2025-03-16 19:26:37,776 INFO L78 Accepts]: Start accepts. Automaton has 33425 states and 47002 transitions. Word has length 68 [2025-03-16 19:26:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:37,776 INFO L471 AbstractCegarLoop]: Abstraction has 33425 states and 47002 transitions. [2025-03-16 19:26:37,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 33425 states and 47002 transitions. [2025-03-16 19:26:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-16 19:26:37,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:37,779 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] [2025-03-16 19:26:37,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-16 19:26:37,780 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:37,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:37,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1397821142, now seen corresponding path program 1 times [2025-03-16 19:26:37,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:37,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399198082] [2025-03-16 19:26:37,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:37,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-16 19:26:37,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-16 19:26:37,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:37,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:37,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399198082] [2025-03-16 19:26:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399198082] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:37,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031623183] [2025-03-16 19:26:37,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:37,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:37,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:37,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:37,874 INFO L87 Difference]: Start difference. First operand 33425 states and 47002 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:38,100 INFO L93 Difference]: Finished difference Result 60563 states and 85856 transitions. [2025-03-16 19:26:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:38,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-16 19:26:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:38,188 INFO L225 Difference]: With dead ends: 60563 [2025-03-16 19:26:38,188 INFO L226 Difference]: Without dead ends: 56574 [2025-03-16 19:26:38,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:38,211 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 1117 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:38,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1132 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56574 states. [2025-03-16 19:26:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56574 to 37352. [2025-03-16 19:26:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37352 states, 37351 states have (on average 1.4067360980964365) internal successors, (52543), 37351 states have internal predecessors, (52543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37352 states to 37352 states and 52543 transitions. [2025-03-16 19:26:38,868 INFO L78 Accepts]: Start accepts. Automaton has 37352 states and 52543 transitions. Word has length 69 [2025-03-16 19:26:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:38,868 INFO L471 AbstractCegarLoop]: Abstraction has 37352 states and 52543 transitions. [2025-03-16 19:26:38,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 37352 states and 52543 transitions. [2025-03-16 19:26:38,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-16 19:26:38,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:38,871 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] [2025-03-16 19:26:38,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-16 19:26:38,871 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:38,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:38,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1121134806, now seen corresponding path program 1 times [2025-03-16 19:26:38,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:38,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203366817] [2025-03-16 19:26:38,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:38,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:38,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-16 19:26:38,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-16 19:26:38,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:38,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:38,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:38,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203366817] [2025-03-16 19:26:38,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203366817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:38,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:38,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:38,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876639902] [2025-03-16 19:26:38,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:38,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:38,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:38,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:38,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:38,963 INFO L87 Difference]: Start difference. First operand 37352 states and 52543 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:39,215 INFO L93 Difference]: Finished difference Result 69225 states and 98156 transitions. [2025-03-16 19:26:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-16 19:26:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:39,294 INFO L225 Difference]: With dead ends: 69225 [2025-03-16 19:26:39,294 INFO L226 Difference]: Without dead ends: 60400 [2025-03-16 19:26:39,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:39,319 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 1039 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:39,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1212 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:26:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60400 states. [2025-03-16 19:26:39,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60400 to 46063. [2025-03-16 19:26:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46063 states, 46062 states have (on average 1.4068863705440493) internal successors, (64804), 46062 states have internal predecessors, (64804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46063 states to 46063 states and 64804 transitions. [2025-03-16 19:26:39,947 INFO L78 Accepts]: Start accepts. Automaton has 46063 states and 64804 transitions. Word has length 69 [2025-03-16 19:26:39,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:39,947 INFO L471 AbstractCegarLoop]: Abstraction has 46063 states and 64804 transitions. [2025-03-16 19:26:39,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 46063 states and 64804 transitions. [2025-03-16 19:26:39,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-16 19:26:39,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:39,950 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] [2025-03-16 19:26:39,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-16 19:26:39,950 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:39,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 535898632, now seen corresponding path program 1 times [2025-03-16 19:26:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:39,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923667709] [2025-03-16 19:26:39,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:39,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:39,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-16 19:26:39,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-16 19:26:39,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:39,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:40,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:40,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923667709] [2025-03-16 19:26:40,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923667709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:40,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:40,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:40,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994766081] [2025-03-16 19:26:40,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:40,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:40,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:40,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:40,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:40,024 INFO L87 Difference]: Start difference. First operand 46063 states and 64804 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:40,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:40,246 INFO L93 Difference]: Finished difference Result 82472 states and 116911 transitions. [2025-03-16 19:26:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:40,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-16 19:26:40,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:40,330 INFO L225 Difference]: With dead ends: 82472 [2025-03-16 19:26:40,330 INFO L226 Difference]: Without dead ends: 69003 [2025-03-16 19:26:40,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:40,357 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 1087 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:40,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 1284 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69003 states. [2025-03-16 19:26:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69003 to 55125. [2025-03-16 19:26:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55125 states, 55124 states have (on average 1.4090232929395545) internal successors, (77671), 55124 states have internal predecessors, (77671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:41,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55125 states to 55125 states and 77671 transitions. [2025-03-16 19:26:41,249 INFO L78 Accepts]: Start accepts. Automaton has 55125 states and 77671 transitions. Word has length 69 [2025-03-16 19:26:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:41,250 INFO L471 AbstractCegarLoop]: Abstraction has 55125 states and 77671 transitions. [2025-03-16 19:26:41,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 55125 states and 77671 transitions. [2025-03-16 19:26:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-16 19:26:41,252 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:41,252 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] [2025-03-16 19:26:41,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-16 19:26:41,252 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:41,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1355745642, now seen corresponding path program 1 times [2025-03-16 19:26:41,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629315833] [2025-03-16 19:26:41,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:41,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:41,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-16 19:26:41,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-16 19:26:41,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:41,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:41,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:41,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629315833] [2025-03-16 19:26:41,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629315833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:41,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:41,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229965883] [2025-03-16 19:26:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:41,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 19:26:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:41,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 19:26:41,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-16 19:26:41,320 INFO L87 Difference]: Start difference. First operand 55125 states and 77671 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:41,572 INFO L93 Difference]: Finished difference Result 91887 states and 130211 transitions. [2025-03-16 19:26:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 19:26:41,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-16 19:26:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:41,660 INFO L225 Difference]: With dead ends: 91887 [2025-03-16 19:26:41,660 INFO L226 Difference]: Without dead ends: 79191 [2025-03-16 19:26:41,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:26:41,691 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 1094 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:41,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1164 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79191 states. [2025-03-16 19:26:42,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79191 to 61426. [2025-03-16 19:26:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61426 states, 61425 states have (on average 1.4104680504680505) internal successors, (86638), 61425 states have internal predecessors, (86638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:42,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61426 states to 61426 states and 86638 transitions. [2025-03-16 19:26:42,770 INFO L78 Accepts]: Start accepts. Automaton has 61426 states and 86638 transitions. Word has length 69 [2025-03-16 19:26:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:42,771 INFO L471 AbstractCegarLoop]: Abstraction has 61426 states and 86638 transitions. [2025-03-16 19:26:42,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 61426 states and 86638 transitions. [2025-03-16 19:26:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-16 19:26:42,774 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:42,774 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] [2025-03-16 19:26:42,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-16 19:26:42,774 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:42,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 871711208, now seen corresponding path program 1 times [2025-03-16 19:26:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529308293] [2025-03-16 19:26:42,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:42,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:42,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-16 19:26:42,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-16 19:26:42,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:42,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:42,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:42,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529308293] [2025-03-16 19:26:42,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529308293] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:42,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:42,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:42,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441506297] [2025-03-16 19:26:42,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:42,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:26:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:42,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:26:42,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:42,856 INFO L87 Difference]: Start difference. First operand 61426 states and 86638 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:43,540 INFO L93 Difference]: Finished difference Result 182188 states and 254646 transitions. [2025-03-16 19:26:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:26:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2025-03-16 19:26:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:43,782 INFO L225 Difference]: With dead ends: 182188 [2025-03-16 19:26:43,782 INFO L226 Difference]: Without dead ends: 159753 [2025-03-16 19:26:43,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:26:43,847 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1615 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:43,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 456 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:26:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159753 states. [2025-03-16 19:26:45,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159753 to 61608. [2025-03-16 19:26:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61608 states, 61607 states have (on average 1.4098073270894542) internal successors, (86854), 61607 states have internal predecessors, (86854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61608 states to 61608 states and 86854 transitions. [2025-03-16 19:26:45,206 INFO L78 Accepts]: Start accepts. Automaton has 61608 states and 86854 transitions. Word has length 74 [2025-03-16 19:26:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:45,206 INFO L471 AbstractCegarLoop]: Abstraction has 61608 states and 86854 transitions. [2025-03-16 19:26:45,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 61608 states and 86854 transitions. [2025-03-16 19:26:45,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-16 19:26:45,210 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:45,210 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] [2025-03-16 19:26:45,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-16 19:26:45,211 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:45,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:45,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1894647851, now seen corresponding path program 1 times [2025-03-16 19:26:45,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:45,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220528238] [2025-03-16 19:26:45,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:45,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-16 19:26:45,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-16 19:26:45,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:45,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220528238] [2025-03-16 19:26:45,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220528238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:45,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:45,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:45,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239236187] [2025-03-16 19:26:45,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:45,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:26:45,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:45,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:26:45,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:45,311 INFO L87 Difference]: Start difference. First operand 61608 states and 86854 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:46,266 INFO L93 Difference]: Finished difference Result 182895 states and 256817 transitions. [2025-03-16 19:26:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:26:46,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2025-03-16 19:26:46,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:46,486 INFO L225 Difference]: With dead ends: 182895 [2025-03-16 19:26:46,487 INFO L226 Difference]: Without dead ends: 160437 [2025-03-16 19:26:46,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:26:46,549 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1773 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:46,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 469 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:26:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160437 states. [2025-03-16 19:26:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160437 to 61712. [2025-03-16 19:26:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61712 states, 61711 states have (on average 1.409456984978367) internal successors, (86979), 61711 states have internal predecessors, (86979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61712 states to 61712 states and 86979 transitions. [2025-03-16 19:26:47,851 INFO L78 Accepts]: Start accepts. Automaton has 61712 states and 86979 transitions. Word has length 74 [2025-03-16 19:26:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:47,851 INFO L471 AbstractCegarLoop]: Abstraction has 61712 states and 86979 transitions. [2025-03-16 19:26:47,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:47,852 INFO L276 IsEmpty]: Start isEmpty. Operand 61712 states and 86979 transitions. [2025-03-16 19:26:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-16 19:26:47,856 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:47,856 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] [2025-03-16 19:26:47,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-16 19:26:47,856 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:47,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:47,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1324661673, now seen corresponding path program 1 times [2025-03-16 19:26:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:47,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061083342] [2025-03-16 19:26:47,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:47,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:47,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-16 19:26:47,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-16 19:26:47,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:47,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:47,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:47,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061083342] [2025-03-16 19:26:47,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061083342] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:47,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:47,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951882687] [2025-03-16 19:26:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:47,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:26:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:47,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:26:47,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:47,970 INFO L87 Difference]: Start difference. First operand 61712 states and 86979 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:48,777 INFO L93 Difference]: Finished difference Result 145318 states and 202581 transitions. [2025-03-16 19:26:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:26:48,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2025-03-16 19:26:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:48,930 INFO L225 Difference]: With dead ends: 145318 [2025-03-16 19:26:48,930 INFO L226 Difference]: Without dead ends: 133557 [2025-03-16 19:26:48,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:26:48,965 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1401 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:48,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 448 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:26:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133557 states. [2025-03-16 19:26:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133557 to 62010. [2025-03-16 19:26:50,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62010 states, 62009 states have (on average 1.4082794433066168) internal successors, (87326), 62009 states have internal predecessors, (87326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62010 states to 62010 states and 87326 transitions. [2025-03-16 19:26:50,353 INFO L78 Accepts]: Start accepts. Automaton has 62010 states and 87326 transitions. Word has length 74 [2025-03-16 19:26:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:50,353 INFO L471 AbstractCegarLoop]: Abstraction has 62010 states and 87326 transitions. [2025-03-16 19:26:50,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 62010 states and 87326 transitions. [2025-03-16 19:26:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-16 19:26:50,358 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:50,358 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] [2025-03-16 19:26:50,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-16 19:26:50,358 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:50,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:50,359 INFO L85 PathProgramCache]: Analyzing trace with hash 377412138, now seen corresponding path program 1 times [2025-03-16 19:26:50,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:50,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932160180] [2025-03-16 19:26:50,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:50,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:50,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-16 19:26:50,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-16 19:26:50,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:50,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:50,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:50,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932160180] [2025-03-16 19:26:50,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932160180] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:50,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:50,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 19:26:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463987894] [2025-03-16 19:26:50,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:50,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:26:50,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:50,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:26:50,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:26:50,426 INFO L87 Difference]: Start difference. First operand 62010 states and 87326 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:50,949 INFO L93 Difference]: Finished difference Result 150186 states and 210309 transitions. [2025-03-16 19:26:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:26:50,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2025-03-16 19:26:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:51,102 INFO L225 Difference]: With dead ends: 150186 [2025-03-16 19:26:51,103 INFO L226 Difference]: Without dead ends: 116514 [2025-03-16 19:26:51,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:26:51,154 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1236 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:51,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 402 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:26:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116514 states. [2025-03-16 19:26:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116514 to 62060. [2025-03-16 19:26:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62060 states, 62059 states have (on average 1.4081116357015098) internal successors, (87386), 62059 states have internal predecessors, (87386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62060 states to 62060 states and 87386 transitions. [2025-03-16 19:26:52,266 INFO L78 Accepts]: Start accepts. Automaton has 62060 states and 87386 transitions. Word has length 74 [2025-03-16 19:26:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:52,266 INFO L471 AbstractCegarLoop]: Abstraction has 62060 states and 87386 transitions. [2025-03-16 19:26:52,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 62060 states and 87386 transitions. [2025-03-16 19:26:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-16 19:26:52,275 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:52,275 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] [2025-03-16 19:26:52,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-16 19:26:52,275 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:52,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1292844234, now seen corresponding path program 1 times [2025-03-16 19:26:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:52,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606409000] [2025-03-16 19:26:52,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:52,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:52,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-16 19:26:52,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-16 19:26:52,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:52,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:52,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:52,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606409000] [2025-03-16 19:26:52,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606409000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:52,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:52,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-16 19:26:52,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967535121] [2025-03-16 19:26:52,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:52,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-16 19:26:52,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:52,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-16 19:26:52,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:26:52,869 INFO L87 Difference]: Start difference. First operand 62060 states and 87386 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:53,834 INFO L93 Difference]: Finished difference Result 113948 states and 160434 transitions. [2025-03-16 19:26:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-16 19:26:53,838 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2025-03-16 19:26:53,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:53,997 INFO L225 Difference]: With dead ends: 113948 [2025-03-16 19:26:53,997 INFO L226 Difference]: Without dead ends: 106019 [2025-03-16 19:26:54,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2025-03-16 19:26:54,036 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 1592 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:54,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 1757 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:26:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106019 states. [2025-03-16 19:26:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106019 to 62076. [2025-03-16 19:26:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62076 states, 62075 states have (on average 1.4078453483689086) internal successors, (87392), 62075 states have internal predecessors, (87392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62076 states to 62076 states and 87392 transitions. [2025-03-16 19:26:55,115 INFO L78 Accepts]: Start accepts. Automaton has 62076 states and 87392 transitions. Word has length 76 [2025-03-16 19:26:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:55,116 INFO L471 AbstractCegarLoop]: Abstraction has 62076 states and 87392 transitions. [2025-03-16 19:26:55,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 62076 states and 87392 transitions. [2025-03-16 19:26:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-16 19:26:55,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:55,121 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:26:55,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-16 19:26:55,121 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:55,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1344181236, now seen corresponding path program 1 times [2025-03-16 19:26:55,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940539505] [2025-03-16 19:26:55,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:55,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:55,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-16 19:26:55,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-16 19:26:55,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:55,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:55,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:55,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940539505] [2025-03-16 19:26:55,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940539505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:55,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:55,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-16 19:26:55,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550723335] [2025-03-16 19:26:55,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:55,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-16 19:26:55,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:55,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-16 19:26:55,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:26:55,542 INFO L87 Difference]: Start difference. First operand 62076 states and 87392 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:56,555 INFO L93 Difference]: Finished difference Result 123264 states and 173572 transitions. [2025-03-16 19:26:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-16 19:26:56,556 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2025-03-16 19:26:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:56,667 INFO L225 Difference]: With dead ends: 123264 [2025-03-16 19:26:56,667 INFO L226 Difference]: Without dead ends: 97418 [2025-03-16 19:26:56,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2025-03-16 19:26:56,709 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1329 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:56,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 2314 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 19:26:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97418 states. [2025-03-16 19:26:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97418 to 61906. [2025-03-16 19:26:57,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61906 states, 61905 states have (on average 1.4083030449882885) internal successors, (87181), 61905 states have internal predecessors, (87181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61906 states to 61906 states and 87181 transitions. [2025-03-16 19:26:57,608 INFO L78 Accepts]: Start accepts. Automaton has 61906 states and 87181 transitions. Word has length 76 [2025-03-16 19:26:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:57,609 INFO L471 AbstractCegarLoop]: Abstraction has 61906 states and 87181 transitions. [2025-03-16 19:26:57,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 61906 states and 87181 transitions. [2025-03-16 19:26:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-16 19:26:57,614 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:57,614 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] [2025-03-16 19:26:57,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-16 19:26:57,614 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:57,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1567036508, now seen corresponding path program 1 times [2025-03-16 19:26:57,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:57,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627605273] [2025-03-16 19:26:57,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:57,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:57,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-16 19:26:57,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-16 19:26:57,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:57,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:57,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:57,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627605273] [2025-03-16 19:26:57,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627605273] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:57,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:57,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704306593] [2025-03-16 19:26:57,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:57,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:57,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:57,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:57,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:57,642 INFO L87 Difference]: Start difference. First operand 61906 states and 87181 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:58,157 INFO L93 Difference]: Finished difference Result 113439 states and 159536 transitions. [2025-03-16 19:26:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:58,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2025-03-16 19:26:58,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:26:58,263 INFO L225 Difference]: With dead ends: 113439 [2025-03-16 19:26:58,263 INFO L226 Difference]: Without dead ends: 85347 [2025-03-16 19:26:58,283 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 [2025-03-16 19:26:58,284 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 196 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:26:58,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 394 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:26:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85347 states. [2025-03-16 19:26:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85347 to 85201. [2025-03-16 19:26:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85201 states, 85200 states have (on average 1.4071478873239436) internal successors, (119889), 85200 states have internal predecessors, (119889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85201 states to 85201 states and 119889 transitions. [2025-03-16 19:26:59,472 INFO L78 Accepts]: Start accepts. Automaton has 85201 states and 119889 transitions. Word has length 77 [2025-03-16 19:26:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:26:59,472 INFO L471 AbstractCegarLoop]: Abstraction has 85201 states and 119889 transitions. [2025-03-16 19:26:59,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 85201 states and 119889 transitions. [2025-03-16 19:26:59,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-16 19:26:59,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:26:59,477 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] [2025-03-16 19:26:59,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-16 19:26:59,477 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:26:59,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:26:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 150255110, now seen corresponding path program 1 times [2025-03-16 19:26:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:26:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624292817] [2025-03-16 19:26:59,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:26:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:26:59,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-16 19:26:59,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-16 19:26:59,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:26:59,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:26:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:26:59,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:26:59,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624292817] [2025-03-16 19:26:59,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624292817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:26:59,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:26:59,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:26:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307917088] [2025-03-16 19:26:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:26:59,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:26:59,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:26:59,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:26:59,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:26:59,505 INFO L87 Difference]: Start difference. First operand 85201 states and 119889 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:26:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:26:59,885 INFO L93 Difference]: Finished difference Result 181412 states and 255322 transitions. [2025-03-16 19:26:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:26:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2025-03-16 19:26:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:27:00,051 INFO L225 Difference]: With dead ends: 181412 [2025-03-16 19:27:00,051 INFO L226 Difference]: Without dead ends: 124088 [2025-03-16 19:27:00,116 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 [2025-03-16 19:27:00,117 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 185 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:27:00,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 363 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:27:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124088 states. [2025-03-16 19:27:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124088 to 123646. [2025-03-16 19:27:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123646 states, 123645 states have (on average 1.4098831331634922) internal successors, (174325), 123645 states have internal predecessors, (174325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123646 states to 123646 states and 174325 transitions. [2025-03-16 19:27:01,657 INFO L78 Accepts]: Start accepts. Automaton has 123646 states and 174325 transitions. Word has length 77 [2025-03-16 19:27:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:27:01,657 INFO L471 AbstractCegarLoop]: Abstraction has 123646 states and 174325 transitions. [2025-03-16 19:27:01,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 123646 states and 174325 transitions. [2025-03-16 19:27:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-16 19:27:01,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:27:01,664 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] [2025-03-16 19:27:01,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-16 19:27:01,665 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:27:01,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:27:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1040283070, now seen corresponding path program 1 times [2025-03-16 19:27:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:27:01,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816274541] [2025-03-16 19:27:01,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:27:01,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:27:01,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-16 19:27:01,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-16 19:27:01,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:27:01,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:27:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:27:01,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:27:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816274541] [2025-03-16 19:27:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816274541] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:27:01,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:27:01,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:27:01,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012712882] [2025-03-16 19:27:01,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:27:01,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:27:01,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:27:01,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:27:01,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:27:01,694 INFO L87 Difference]: Start difference. First operand 123646 states and 174325 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:27:02,704 INFO L93 Difference]: Finished difference Result 245524 states and 346634 transitions. [2025-03-16 19:27:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:27:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2025-03-16 19:27:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:27:02,956 INFO L225 Difference]: With dead ends: 245524 [2025-03-16 19:27:02,956 INFO L226 Difference]: Without dead ends: 164829 [2025-03-16 19:27:03,010 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 [2025-03-16 19:27:03,011 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 172 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:27:03,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 361 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:27:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164829 states. [2025-03-16 19:27:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164829 to 107836. [2025-03-16 19:27:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107836 states, 107835 states have (on average 1.4140492418973432) internal successors, (152484), 107835 states have internal predecessors, (152484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107836 states to 107836 states and 152484 transitions. [2025-03-16 19:27:05,074 INFO L78 Accepts]: Start accepts. Automaton has 107836 states and 152484 transitions. Word has length 80 [2025-03-16 19:27:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:27:05,074 INFO L471 AbstractCegarLoop]: Abstraction has 107836 states and 152484 transitions. [2025-03-16 19:27:05,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 107836 states and 152484 transitions. [2025-03-16 19:27:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-16 19:27:05,080 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:27:05,080 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] [2025-03-16 19:27:05,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-16 19:27:05,081 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:27:05,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:27:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1126797605, now seen corresponding path program 1 times [2025-03-16 19:27:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:27:05,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332204714] [2025-03-16 19:27:05,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:27:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:27:05,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-16 19:27:05,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-16 19:27:05,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:27:05,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:27:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:27:05,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:27:05,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332204714] [2025-03-16 19:27:05,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332204714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:27:05,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:27:05,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:27:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235485764] [2025-03-16 19:27:05,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:27:05,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:27:05,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:27:05,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:27:05,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:27:05,122 INFO L87 Difference]: Start difference. First operand 107836 states and 152484 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:27:05,431 INFO L93 Difference]: Finished difference Result 157006 states and 221477 transitions. [2025-03-16 19:27:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:27:05,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2025-03-16 19:27:05,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:27:05,533 INFO L225 Difference]: With dead ends: 157006 [2025-03-16 19:27:05,533 INFO L226 Difference]: Without dead ends: 93763 [2025-03-16 19:27:05,588 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 [2025-03-16 19:27:05,589 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 148 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 580 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 [2025-03-16 19:27:05,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 580 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:27:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93763 states. [2025-03-16 19:27:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93763 to 93761. [2025-03-16 19:27:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93761 states, 93760 states have (on average 1.3981975255972696) internal successors, (131095), 93760 states have internal predecessors, (131095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93761 states to 93761 states and 131095 transitions. [2025-03-16 19:27:06,806 INFO L78 Accepts]: Start accepts. Automaton has 93761 states and 131095 transitions. Word has length 80 [2025-03-16 19:27:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:27:06,806 INFO L471 AbstractCegarLoop]: Abstraction has 93761 states and 131095 transitions. [2025-03-16 19:27:06,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 93761 states and 131095 transitions. [2025-03-16 19:27:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-16 19:27:06,812 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:27:06,812 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] [2025-03-16 19:27:06,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-16 19:27:06,812 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:27:06,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:27:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1889581132, now seen corresponding path program 1 times [2025-03-16 19:27:06,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:27:06,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032168203] [2025-03-16 19:27:06,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:27:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:27:06,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-16 19:27:06,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-16 19:27:06,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:27:06,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:27:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:27:07,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:27:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032168203] [2025-03-16 19:27:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032168203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:27:07,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:27:07,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:27:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199149011] [2025-03-16 19:27:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:27:07,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:27:07,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:27:07,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:27:07,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:27:07,152 INFO L87 Difference]: Start difference. First operand 93761 states and 131095 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:27:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:27:07,684 INFO L93 Difference]: Finished difference Result 185198 states and 259212 transitions. [2025-03-16 19:27:07,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:27:07,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-16 19:27:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:27:07,863 INFO L225 Difference]: With dead ends: 185198 [2025-03-16 19:27:07,863 INFO L226 Difference]: Without dead ends: 129861 [2025-03-16 19:27:07,931 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 [2025-03-16 19:27:07,932 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 181 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:27:07,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 366 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:27:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129861 states.