./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.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 e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:53:29,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:53:29,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:53:29,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:53:29,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:53:29,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:53:29,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:53:29,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:53:29,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:53:29,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:53:29,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:53:29,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:53:29,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:53:29,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:53:29,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:53:29,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:53:29,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:53:29,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:53:29,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:53:29,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:53:29,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:53:29,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:53:29,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:53:29,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:53:29,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:53:29,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:53:29,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:53:29,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:53:29,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:53:29,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:53:29,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:53:29,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:53:29,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:53:29,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:53:29,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:53:29,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:53:29,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:53:29,317 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 [2024-11-09 23:53:29,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:53:29,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:53:29,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:53:29,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:53:29,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:53:29,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-09 23:53:30,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:53:31,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:53:31,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-09 23:53:31,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5b485f5/a1ff3343275f4322b836a39fcdb99865/FLAG4c422edee [2024-11-09 23:53:31,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5b485f5/a1ff3343275f4322b836a39fcdb99865 [2024-11-09 23:53:31,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:53:31,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:53:31,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:53:31,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:53:31,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:53:31,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e2d6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31, skipping insertion in model container [2024-11-09 23:53:31,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:53:31,341 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.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-09 23:53:31,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:53:31,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:53:31,417 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.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-09 23:53:31,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:53:31,465 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:53:31,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31 WrapperNode [2024-11-09 23:53:31,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:53:31,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:53:31,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:53:31,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:53:31,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,519 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 695 [2024-11-09 23:53:31,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:53:31,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:53:31,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:53:31,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:53:31,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,549 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:53:31,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,557 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:53:31,566 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:53:31,566 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:53:31,566 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:53:31,567 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (1/1) ... [2024-11-09 23:53:31,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:53:31,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:53:31,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:53:31,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:53:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:53:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:53:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:53:31,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:53:31,783 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:53:31,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:53:32,263 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,284 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L368: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L368: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L368: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L203: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L203: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L996: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L600: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-09 23:53:32,286 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:53:32,287 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:53:32,287 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:53:32,287 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L403: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L486: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L686: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L224: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:53:32,288 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L572: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L952: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,289 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,290 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,292 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,292 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L658: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-09 23:53:32,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1040: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L297: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:53:32,294 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L182: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L182: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:53:32,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:53:32,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:53:32,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:53:32,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:53:32,296 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:53:32,296 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L514: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:53:32,331 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-09 23:53:32,333 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:53:32,356 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:53:32,357 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:53:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:53:32 BoogieIcfgContainer [2024-11-09 23:53:32,357 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:53:32,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:53:32,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:53:32,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:53:32,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:53:31" (1/3) ... [2024-11-09 23:53:32,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7713e581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:53:32, skipping insertion in model container [2024-11-09 23:53:32,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:53:31" (2/3) ... [2024-11-09 23:53:32,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7713e581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:53:32, skipping insertion in model container [2024-11-09 23:53:32,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:53:32" (3/3) ... [2024-11-09 23:53:32,367 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-09 23:53:32,381 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:53:32,381 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:53:32,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:53:32,438 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;@3e938b44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:53:32,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:53:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 179 states have (on average 1.675977653631285) internal successors, (300), 180 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:53:32,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:32,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:32,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:32,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:32,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1403873837, now seen corresponding path program 1 times [2024-11-09 23:53:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:32,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55716187] [2024-11-09 23:53:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:32,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:33,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55716187] [2024-11-09 23:53:33,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55716187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:33,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925157446] [2024-11-09 23:53:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:33,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:33,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:33,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:33,040 INFO L87 Difference]: Start difference. First operand has 181 states, 179 states have (on average 1.675977653631285) internal successors, (300), 180 states have internal predecessors, (300), 0 states have call successors, (0), 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) [2024-11-09 23:53:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:33,229 INFO L93 Difference]: Finished difference Result 656 states and 1030 transitions. [2024-11-09 23:53:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:33,231 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 [2024-11-09 23:53:33,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:33,251 INFO L225 Difference]: With dead ends: 656 [2024-11-09 23:53:33,255 INFO L226 Difference]: Without dead ends: 555 [2024-11-09 23:53:33,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:53:33,260 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 1445 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:33,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1812 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:53:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-09 23:53:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 280. [2024-11-09 23:53:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.4731182795698925) internal successors, (411), 279 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 411 transitions. [2024-11-09 23:53:33,301 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 411 transitions. Word has length 63 [2024-11-09 23:53:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:33,302 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 411 transitions. [2024-11-09 23:53:33,302 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) [2024-11-09 23:53:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 411 transitions. [2024-11-09 23:53:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:53:33,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:33,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:33,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:53:33,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:33,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:33,305 INFO L85 PathProgramCache]: Analyzing trace with hash -472310061, now seen corresponding path program 1 times [2024-11-09 23:53:33,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:33,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353449987] [2024-11-09 23:53:33,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:33,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:33,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:33,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353449987] [2024-11-09 23:53:33,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353449987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:33,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:33,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:33,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738961770] [2024-11-09 23:53:33,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:33,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:33,537 INFO L87 Difference]: Start difference. First operand 280 states and 411 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-11-09 23:53:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:33,662 INFO L93 Difference]: Finished difference Result 1044 states and 1571 transitions. [2024-11-09 23:53:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 [2024-11-09 23:53:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:33,666 INFO L225 Difference]: With dead ends: 1044 [2024-11-09 23:53:33,666 INFO L226 Difference]: Without dead ends: 822 [2024-11-09 23:53:33,669 INFO L431 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 [2024-11-09 23:53:33,670 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 819 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:33,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 740 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:53:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-09 23:53:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 816. [2024-11-09 23:53:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.4969325153374233) internal successors, (1220), 815 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1220 transitions. [2024-11-09 23:53:33,710 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1220 transitions. Word has length 65 [2024-11-09 23:53:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:33,710 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1220 transitions. [2024-11-09 23:53:33,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-11-09 23:53:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1220 transitions. [2024-11-09 23:53:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:53:33,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:33,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:33,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:53:33,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:33,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1357025043, now seen corresponding path program 1 times [2024-11-09 23:53:33,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:33,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265488816] [2024-11-09 23:53:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:33,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:33,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265488816] [2024-11-09 23:53:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265488816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:33,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:53:33,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368527023] [2024-11-09 23:53:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:33,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:53:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:53:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:33,867 INFO L87 Difference]: Start difference. First operand 816 states and 1220 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:34,113 INFO L93 Difference]: Finished difference Result 2070 states and 3138 transitions. [2024-11-09 23:53:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:34,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 23:53:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:34,119 INFO L225 Difference]: With dead ends: 2070 [2024-11-09 23:53:34,120 INFO L226 Difference]: Without dead ends: 1350 [2024-11-09 23:53:34,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:34,124 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 918 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:34,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 257 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-11-09 23:53:34,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1348. [2024-11-09 23:53:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1347 states have (on average 1.5070527097253155) internal successors, (2030), 1347 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2030 transitions. [2024-11-09 23:53:34,148 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2030 transitions. Word has length 66 [2024-11-09 23:53:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:34,149 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 2030 transitions. [2024-11-09 23:53:34,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2030 transitions. [2024-11-09 23:53:34,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:53:34,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:34,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:34,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:53:34,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:34,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:34,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1590936007, now seen corresponding path program 1 times [2024-11-09 23:53:34,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:34,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461881778] [2024-11-09 23:53:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:34,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:34,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:34,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461881778] [2024-11-09 23:53:34,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461881778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:34,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:34,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:53:34,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548845987] [2024-11-09 23:53:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:34,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:53:34,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:53:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:34,259 INFO L87 Difference]: Start difference. First operand 1348 states and 2030 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:34,452 INFO L93 Difference]: Finished difference Result 3721 states and 5651 transitions. [2024-11-09 23:53:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:34,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 23:53:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:34,458 INFO L225 Difference]: With dead ends: 3721 [2024-11-09 23:53:34,458 INFO L226 Difference]: Without dead ends: 2442 [2024-11-09 23:53:34,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:34,460 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 946 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:34,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 256 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-09 23:53:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2440. [2024-11-09 23:53:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2439 states have (on average 1.5104551045510455) internal successors, (3684), 2439 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3684 transitions. [2024-11-09 23:53:34,490 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3684 transitions. Word has length 66 [2024-11-09 23:53:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:34,490 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 3684 transitions. [2024-11-09 23:53:34,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3684 transitions. [2024-11-09 23:53:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:53:34,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:34,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:34,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:53:34,492 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:34,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:34,492 INFO L85 PathProgramCache]: Analyzing trace with hash 705752860, now seen corresponding path program 1 times [2024-11-09 23:53:34,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:34,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078424496] [2024-11-09 23:53:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:34,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:34,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:34,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078424496] [2024-11-09 23:53:34,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078424496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:34,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:34,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:53:34,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282540901] [2024-11-09 23:53:34,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:34,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:53:34,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:34,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:53:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:34,600 INFO L87 Difference]: Start difference. First operand 2440 states and 3684 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:34,814 INFO L93 Difference]: Finished difference Result 7044 states and 10690 transitions. [2024-11-09 23:53:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 23:53:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:34,825 INFO L225 Difference]: With dead ends: 7044 [2024-11-09 23:53:34,826 INFO L226 Difference]: Without dead ends: 4650 [2024-11-09 23:53:34,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:34,831 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 974 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:34,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 255 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2024-11-09 23:53:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4648. [2024-11-09 23:53:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 4647 states have (on average 1.5082849149989241) internal successors, (7009), 4647 states have internal predecessors, (7009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 7009 transitions. [2024-11-09 23:53:34,896 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 7009 transitions. Word has length 66 [2024-11-09 23:53:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:34,896 INFO L471 AbstractCegarLoop]: Abstraction has 4648 states and 7009 transitions. [2024-11-09 23:53:34,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:34,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 7009 transitions. [2024-11-09 23:53:34,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:53:34,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:34,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:34,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:53:34,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:34,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash -288902261, now seen corresponding path program 1 times [2024-11-09 23:53:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:34,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338789648] [2024-11-09 23:53:34,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:34,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:35,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:35,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338789648] [2024-11-09 23:53:35,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338789648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:35,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:35,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:53:35,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721527009] [2024-11-09 23:53:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:35,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:53:35,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:35,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:53:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:35,012 INFO L87 Difference]: Start difference. First operand 4648 states and 7009 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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) [2024-11-09 23:53:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:35,187 INFO L93 Difference]: Finished difference Result 12696 states and 19184 transitions. [2024-11-09 23:53:35,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:35,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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 [2024-11-09 23:53:35,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:35,207 INFO L225 Difference]: With dead ends: 12696 [2024-11-09 23:53:35,208 INFO L226 Difference]: Without dead ends: 8096 [2024-11-09 23:53:35,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:35,218 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 1009 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:35,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 259 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:53:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2024-11-09 23:53:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 8094. [2024-11-09 23:53:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8094 states, 8093 states have (on average 1.5029037439762758) internal successors, (12163), 8093 states have internal predecessors, (12163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8094 states to 8094 states and 12163 transitions. [2024-11-09 23:53:35,333 INFO L78 Accepts]: Start accepts. Automaton has 8094 states and 12163 transitions. Word has length 67 [2024-11-09 23:53:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:35,334 INFO L471 AbstractCegarLoop]: Abstraction has 8094 states and 12163 transitions. [2024-11-09 23:53:35,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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) [2024-11-09 23:53:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8094 states and 12163 transitions. [2024-11-09 23:53:35,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:53:35,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:35,336 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:35,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:53:35,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:35,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1020137422, now seen corresponding path program 1 times [2024-11-09 23:53:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:35,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46350736] [2024-11-09 23:53:35,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:35,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:35,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:35,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:35,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46350736] [2024-11-09 23:53:35,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46350736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:35,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:35,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:53:35,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595659325] [2024-11-09 23:53:35,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:35,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:53:35,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:35,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:53:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:35,633 INFO L87 Difference]: Start difference. First operand 8094 states and 12163 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 23:53:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:35,683 INFO L93 Difference]: Finished difference Result 8432 states and 12612 transitions. [2024-11-09 23:53:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:35,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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 [2024-11-09 23:53:35,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:35,702 INFO L225 Difference]: With dead ends: 8432 [2024-11-09 23:53:35,702 INFO L226 Difference]: Without dead ends: 8430 [2024-11-09 23:53:35,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:35,704 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:35,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 958 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2024-11-09 23:53:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8430. [2024-11-09 23:53:35,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 8429 states have (on average 1.4828568038913275) internal successors, (12499), 8429 states have internal predecessors, (12499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12499 transitions. [2024-11-09 23:53:35,794 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12499 transitions. Word has length 67 [2024-11-09 23:53:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:35,794 INFO L471 AbstractCegarLoop]: Abstraction has 8430 states and 12499 transitions. [2024-11-09 23:53:35,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-09 23:53:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12499 transitions. [2024-11-09 23:53:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:53:35,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:35,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:35,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:53:35,797 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:35,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1383060134, now seen corresponding path program 1 times [2024-11-09 23:53:35,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:35,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038153326] [2024-11-09 23:53:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:35,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:36,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:36,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038153326] [2024-11-09 23:53:36,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038153326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:36,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:36,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:53:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824319541] [2024-11-09 23:53:36,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:36,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:53:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:53:36,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:53:36,087 INFO L87 Difference]: Start difference. First operand 8430 states and 12499 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:36,548 INFO L93 Difference]: Finished difference Result 11232 states and 16504 transitions. [2024-11-09 23:53:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 23:53:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-09 23:53:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:36,568 INFO L225 Difference]: With dead ends: 11232 [2024-11-09 23:53:36,568 INFO L226 Difference]: Without dead ends: 9894 [2024-11-09 23:53:36,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-09 23:53:36,573 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 1352 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:36,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 783 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:53:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9894 states. [2024-11-09 23:53:36,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9894 to 8430. [2024-11-09 23:53:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 8429 states have (on average 1.4827381658559735) internal successors, (12498), 8429 states have internal predecessors, (12498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12498 transitions. [2024-11-09 23:53:36,757 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12498 transitions. Word has length 68 [2024-11-09 23:53:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:36,757 INFO L471 AbstractCegarLoop]: Abstraction has 8430 states and 12498 transitions. [2024-11-09 23:53:36,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12498 transitions. [2024-11-09 23:53:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:53:36,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:36,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:36,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:53:36,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:36,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash -298432869, now seen corresponding path program 1 times [2024-11-09 23:53:36,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686542653] [2024-11-09 23:53:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:37,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:37,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686542653] [2024-11-09 23:53:37,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686542653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:37,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:37,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:53:37,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865264352] [2024-11-09 23:53:37,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:37,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:53:37,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:37,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:53:37,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:53:37,028 INFO L87 Difference]: Start difference. First operand 8430 states and 12498 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:37,530 INFO L93 Difference]: Finished difference Result 15097 states and 22178 transitions. [2024-11-09 23:53:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:53:37,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-09 23:53:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:37,543 INFO L225 Difference]: With dead ends: 15097 [2024-11-09 23:53:37,543 INFO L226 Difference]: Without dead ends: 11440 [2024-11-09 23:53:37,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:53:37,547 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1539 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:37,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 829 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:53:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2024-11-09 23:53:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 8620. [2024-11-09 23:53:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 1.4794059635688595) internal successors, (12751), 8619 states have internal predecessors, (12751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 12751 transitions. [2024-11-09 23:53:37,657 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 12751 transitions. Word has length 68 [2024-11-09 23:53:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:37,657 INFO L471 AbstractCegarLoop]: Abstraction has 8620 states and 12751 transitions. [2024-11-09 23:53:37,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:37,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 12751 transitions. [2024-11-09 23:53:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:53:37,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:37,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:37,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:53:37,661 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:37,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:37,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2095644933, now seen corresponding path program 1 times [2024-11-09 23:53:37,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249278145] [2024-11-09 23:53:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:37,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:38,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:38,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249278145] [2024-11-09 23:53:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249278145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:38,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:53:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064742547] [2024-11-09 23:53:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:38,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:53:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:53:38,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:53:38,025 INFO L87 Difference]: Start difference. First operand 8620 states and 12751 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:38,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:38,584 INFO L93 Difference]: Finished difference Result 18827 states and 27634 transitions. [2024-11-09 23:53:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:53:38,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-09 23:53:38,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:38,600 INFO L225 Difference]: With dead ends: 18827 [2024-11-09 23:53:38,600 INFO L226 Difference]: Without dead ends: 12883 [2024-11-09 23:53:38,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:53:38,609 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1447 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:38,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 889 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:53:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2024-11-09 23:53:38,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 8830. [2024-11-09 23:53:38,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8830 states, 8829 states have (on average 1.4741193793181562) internal successors, (13015), 8829 states have internal predecessors, (13015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 13015 transitions. [2024-11-09 23:53:38,742 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 13015 transitions. Word has length 68 [2024-11-09 23:53:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:38,742 INFO L471 AbstractCegarLoop]: Abstraction has 8830 states and 13015 transitions. [2024-11-09 23:53:38,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 13015 transitions. [2024-11-09 23:53:38,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:53:38,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:38,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:38,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:53:38,745 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:38,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:38,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1914514827, now seen corresponding path program 1 times [2024-11-09 23:53:38,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:38,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713219287] [2024-11-09 23:53:38,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:38,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:38,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:38,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713219287] [2024-11-09 23:53:38,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713219287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:38,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:38,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:53:38,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747981849] [2024-11-09 23:53:38,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:38,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:53:38,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:53:38,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:53:38,988 INFO L87 Difference]: Start difference. First operand 8830 states and 13015 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:39,505 INFO L93 Difference]: Finished difference Result 22095 states and 32511 transitions. [2024-11-09 23:53:39,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:53:39,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:53:39,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:39,518 INFO L225 Difference]: With dead ends: 22095 [2024-11-09 23:53:39,518 INFO L226 Difference]: Without dead ends: 13996 [2024-11-09 23:53:39,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:53:39,526 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 1155 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:39,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1226 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 23:53:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13996 states. [2024-11-09 23:53:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13996 to 8994. [2024-11-09 23:53:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 1.4673635049482932) internal successors, (13196), 8993 states have internal predecessors, (13196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 13196 transitions. [2024-11-09 23:53:39,622 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 13196 transitions. Word has length 69 [2024-11-09 23:53:39,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:39,622 INFO L471 AbstractCegarLoop]: Abstraction has 8994 states and 13196 transitions. [2024-11-09 23:53:39,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 13196 transitions. [2024-11-09 23:53:39,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:53:39,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:39,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:39,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:53:39,625 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:39,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:39,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1749816281, now seen corresponding path program 1 times [2024-11-09 23:53:39,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:39,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053719725] [2024-11-09 23:53:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:39,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:39,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053719725] [2024-11-09 23:53:39,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053719725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:39,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:39,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:53:39,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550506947] [2024-11-09 23:53:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:39,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:53:39,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:39,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:53:39,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:53:39,717 INFO L87 Difference]: Start difference. First operand 8994 states and 13196 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:39,772 INFO L93 Difference]: Finished difference Result 23166 states and 34246 transitions. [2024-11-09 23:53:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:53:39,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:53:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:39,787 INFO L225 Difference]: With dead ends: 23166 [2024-11-09 23:53:39,788 INFO L226 Difference]: Without dead ends: 15356 [2024-11-09 23:53:39,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:53:39,797 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 167 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:39,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 597 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2024-11-09 23:53:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 15250. [2024-11-09 23:53:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15250 states, 15249 states have (on average 1.4618663518919273) internal successors, (22292), 15249 states have internal predecessors, (22292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15250 states to 15250 states and 22292 transitions. [2024-11-09 23:53:39,943 INFO L78 Accepts]: Start accepts. Automaton has 15250 states and 22292 transitions. Word has length 69 [2024-11-09 23:53:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:39,943 INFO L471 AbstractCegarLoop]: Abstraction has 15250 states and 22292 transitions. [2024-11-09 23:53:39,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 15250 states and 22292 transitions. [2024-11-09 23:53:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:53:39,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:39,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:39,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:53:39,946 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:39,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1020050502, now seen corresponding path program 1 times [2024-11-09 23:53:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:39,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053294447] [2024-11-09 23:53:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:39,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:39,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053294447] [2024-11-09 23:53:39,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053294447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:39,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:39,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:39,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867027540] [2024-11-09 23:53:39,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:39,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:39,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:39,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:39,982 INFO L87 Difference]: Start difference. First operand 15250 states and 22292 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:40,046 INFO L93 Difference]: Finished difference Result 33316 states and 48858 transitions. [2024-11-09 23:53:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:40,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:53:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:40,066 INFO L225 Difference]: With dead ends: 33316 [2024-11-09 23:53:40,066 INFO L226 Difference]: Without dead ends: 20664 [2024-11-09 23:53:40,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:40,080 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 172 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:40,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 473 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20664 states. [2024-11-09 23:53:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20664 to 15084. [2024-11-09 23:53:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 1.4497778956441025) internal successors, (21867), 15083 states have internal predecessors, (21867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 21867 transitions. [2024-11-09 23:53:40,343 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 21867 transitions. Word has length 69 [2024-11-09 23:53:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:40,343 INFO L471 AbstractCegarLoop]: Abstraction has 15084 states and 21867 transitions. [2024-11-09 23:53:40,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,344 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 21867 transitions. [2024-11-09 23:53:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:53:40,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:40,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:40,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:53:40,355 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:40,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash -14566838, now seen corresponding path program 1 times [2024-11-09 23:53:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:40,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488332619] [2024-11-09 23:53:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:40,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:40,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:40,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488332619] [2024-11-09 23:53:40,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488332619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:40,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:40,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:40,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890027575] [2024-11-09 23:53:40,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:40,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:40,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:40,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:40,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:40,406 INFO L87 Difference]: Start difference. First operand 15084 states and 21867 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:40,458 INFO L93 Difference]: Finished difference Result 21422 states and 30996 transitions. [2024-11-09 23:53:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:40,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:53:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:40,472 INFO L225 Difference]: With dead ends: 21422 [2024-11-09 23:53:40,472 INFO L226 Difference]: Without dead ends: 16706 [2024-11-09 23:53:40,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:40,478 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 144 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:40,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 545 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16706 states. [2024-11-09 23:53:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16706 to 14696. [2024-11-09 23:53:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14696 states, 14695 states have (on average 1.4249744811160259) internal successors, (20940), 14695 states have internal predecessors, (20940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14696 states to 14696 states and 20940 transitions. [2024-11-09 23:53:40,738 INFO L78 Accepts]: Start accepts. Automaton has 14696 states and 20940 transitions. Word has length 69 [2024-11-09 23:53:40,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:40,738 INFO L471 AbstractCegarLoop]: Abstraction has 14696 states and 20940 transitions. [2024-11-09 23:53:40,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,738 INFO L276 IsEmpty]: Start isEmpty. Operand 14696 states and 20940 transitions. [2024-11-09 23:53:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:53:40,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:40,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:40,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:53:40,742 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:40,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:40,742 INFO L85 PathProgramCache]: Analyzing trace with hash -640066311, now seen corresponding path program 1 times [2024-11-09 23:53:40,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:40,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977991761] [2024-11-09 23:53:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:40,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977991761] [2024-11-09 23:53:40,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977991761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:40,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:40,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:40,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955673962] [2024-11-09 23:53:40,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:40,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:40,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:40,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:40,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:40,798 INFO L87 Difference]: Start difference. First operand 14696 states and 20940 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:40,939 INFO L93 Difference]: Finished difference Result 25104 states and 35836 transitions. [2024-11-09 23:53:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:40,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:53:40,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:40,951 INFO L225 Difference]: With dead ends: 25104 [2024-11-09 23:53:40,952 INFO L226 Difference]: Without dead ends: 16754 [2024-11-09 23:53:40,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:40,961 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 154 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:40,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 493 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:40,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16754 states. [2024-11-09 23:53:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16754 to 16544. [2024-11-09 23:53:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16544 states, 16543 states have (on average 1.4005923955751678) internal successors, (23170), 16543 states have internal predecessors, (23170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16544 states to 16544 states and 23170 transitions. [2024-11-09 23:53:41,132 INFO L78 Accepts]: Start accepts. Automaton has 16544 states and 23170 transitions. Word has length 69 [2024-11-09 23:53:41,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:41,132 INFO L471 AbstractCegarLoop]: Abstraction has 16544 states and 23170 transitions. [2024-11-09 23:53:41,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,132 INFO L276 IsEmpty]: Start isEmpty. Operand 16544 states and 23170 transitions. [2024-11-09 23:53:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:53:41,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:41,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:41,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:53:41,135 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:41,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:41,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1487780400, now seen corresponding path program 1 times [2024-11-09 23:53:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:41,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538792460] [2024-11-09 23:53:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:41,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:41,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538792460] [2024-11-09 23:53:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538792460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:41,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:41,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693204070] [2024-11-09 23:53:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:41,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:41,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:41,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:41,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:41,182 INFO L87 Difference]: Start difference. First operand 16544 states and 23170 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:41,263 INFO L93 Difference]: Finished difference Result 31955 states and 44679 transitions. [2024-11-09 23:53:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:41,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 23:53:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:41,284 INFO L225 Difference]: With dead ends: 31955 [2024-11-09 23:53:41,284 INFO L226 Difference]: Without dead ends: 17989 [2024-11-09 23:53:41,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:41,297 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:41,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 457 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:41,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17989 states. [2024-11-09 23:53:41,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17989 to 17819. [2024-11-09 23:53:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17819 states, 17818 states have (on average 1.3656414861376136) internal successors, (24333), 17818 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17819 states to 17819 states and 24333 transitions. [2024-11-09 23:53:41,553 INFO L78 Accepts]: Start accepts. Automaton has 17819 states and 24333 transitions. Word has length 70 [2024-11-09 23:53:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:41,553 INFO L471 AbstractCegarLoop]: Abstraction has 17819 states and 24333 transitions. [2024-11-09 23:53:41,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17819 states and 24333 transitions. [2024-11-09 23:53:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:53:41,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:41,555 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:41,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:53:41,556 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:41,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash -943352628, now seen corresponding path program 1 times [2024-11-09 23:53:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489156613] [2024-11-09 23:53:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:41,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489156613] [2024-11-09 23:53:41,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489156613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:41,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:41,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:41,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992672720] [2024-11-09 23:53:41,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:41,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:41,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:41,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:41,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:41,630 INFO L87 Difference]: Start difference. First operand 17819 states and 24333 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:41,741 INFO L93 Difference]: Finished difference Result 33488 states and 46084 transitions. [2024-11-09 23:53:41,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:41,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 23:53:41,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:41,773 INFO L225 Difference]: With dead ends: 33488 [2024-11-09 23:53:41,774 INFO L226 Difference]: Without dead ends: 31419 [2024-11-09 23:53:41,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:53:41,785 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 1099 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:41,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1134 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2024-11-09 23:53:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 19868. [2024-11-09 23:53:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19868 states, 19867 states have (on average 1.365832788040469) internal successors, (27135), 19867 states have internal predecessors, (27135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:42,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 27135 transitions. [2024-11-09 23:53:42,060 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 27135 transitions. Word has length 70 [2024-11-09 23:53:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:42,060 INFO L471 AbstractCegarLoop]: Abstraction has 19868 states and 27135 transitions. [2024-11-09 23:53:42,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 27135 transitions. [2024-11-09 23:53:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:53:42,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:42,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:42,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:53:42,063 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:42,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -136756458, now seen corresponding path program 1 times [2024-11-09 23:53:42,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:42,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7162185] [2024-11-09 23:53:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:42,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:42,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:42,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:42,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7162185] [2024-11-09 23:53:42,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7162185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:42,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:42,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:42,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674992747] [2024-11-09 23:53:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:42,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:42,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:42,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:42,138 INFO L87 Difference]: Start difference. First operand 19868 states and 27135 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:42,342 INFO L93 Difference]: Finished difference Result 37957 states and 52246 transitions. [2024-11-09 23:53:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:42,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 23:53:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:42,384 INFO L225 Difference]: With dead ends: 37957 [2024-11-09 23:53:42,384 INFO L226 Difference]: Without dead ends: 33412 [2024-11-09 23:53:42,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:53:42,397 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1026 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:42,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1220 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33412 states. [2024-11-09 23:53:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33412 to 24376. [2024-11-09 23:53:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24376 states, 24375 states have (on average 1.3659076923076923) internal successors, (33294), 24375 states have internal predecessors, (33294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24376 states to 24376 states and 33294 transitions. [2024-11-09 23:53:42,759 INFO L78 Accepts]: Start accepts. Automaton has 24376 states and 33294 transitions. Word has length 70 [2024-11-09 23:53:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:42,759 INFO L471 AbstractCegarLoop]: Abstraction has 24376 states and 33294 transitions. [2024-11-09 23:53:42,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 24376 states and 33294 transitions. [2024-11-09 23:53:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:53:42,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:42,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:42,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:53:42,762 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:42,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash -160723586, now seen corresponding path program 1 times [2024-11-09 23:53:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:42,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61738773] [2024-11-09 23:53:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:42,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:42,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61738773] [2024-11-09 23:53:42,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61738773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:42,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:42,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:42,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486728137] [2024-11-09 23:53:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:42,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:42,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:42,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:42,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:42,865 INFO L87 Difference]: Start difference. First operand 24376 states and 33294 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:43,088 INFO L93 Difference]: Finished difference Result 44758 states and 61604 transitions. [2024-11-09 23:53:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:43,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 23:53:43,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:43,126 INFO L225 Difference]: With dead ends: 44758 [2024-11-09 23:53:43,126 INFO L226 Difference]: Without dead ends: 37857 [2024-11-09 23:53:43,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:53:43,137 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1065 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:43,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1297 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:53:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37857 states. [2024-11-09 23:53:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37857 to 29624. [2024-11-09 23:53:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29624 states, 29623 states have (on average 1.3679910880059414) internal successors, (40524), 29623 states have internal predecessors, (40524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29624 states to 29624 states and 40524 transitions. [2024-11-09 23:53:43,438 INFO L78 Accepts]: Start accepts. Automaton has 29624 states and 40524 transitions. Word has length 70 [2024-11-09 23:53:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:43,439 INFO L471 AbstractCegarLoop]: Abstraction has 29624 states and 40524 transitions. [2024-11-09 23:53:43,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 29624 states and 40524 transitions. [2024-11-09 23:53:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:53:43,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:43,441 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:43,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:53:43,441 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:43,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1650773811, now seen corresponding path program 1 times [2024-11-09 23:53:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:43,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451199497] [2024-11-09 23:53:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:43,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:43,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:43,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451199497] [2024-11-09 23:53:43,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451199497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:43,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:43,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587873479] [2024-11-09 23:53:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:43,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:53:43,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:43,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:53:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:53:43,539 INFO L87 Difference]: Start difference. First operand 29624 states and 40524 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:43,762 INFO L93 Difference]: Finished difference Result 53152 states and 73108 transitions. [2024-11-09 23:53:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:53:43,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-09 23:53:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:43,810 INFO L225 Difference]: With dead ends: 53152 [2024-11-09 23:53:43,810 INFO L226 Difference]: Without dead ends: 44667 [2024-11-09 23:53:43,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:53:43,829 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1076 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:43,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1149 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:53:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44667 states. [2024-11-09 23:53:44,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44667 to 33980. [2024-11-09 23:53:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33980 states, 33979 states have (on average 1.368551163954207) internal successors, (46502), 33979 states have internal predecessors, (46502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33980 states to 33980 states and 46502 transitions. [2024-11-09 23:53:44,391 INFO L78 Accepts]: Start accepts. Automaton has 33980 states and 46502 transitions. Word has length 71 [2024-11-09 23:53:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:44,392 INFO L471 AbstractCegarLoop]: Abstraction has 33980 states and 46502 transitions. [2024-11-09 23:53:44,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:44,392 INFO L276 IsEmpty]: Start isEmpty. Operand 33980 states and 46502 transitions. [2024-11-09 23:53:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:53:44,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:44,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:44,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:53:44,404 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:44,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:44,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1850298774, now seen corresponding path program 1 times [2024-11-09 23:53:44,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:44,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679039069] [2024-11-09 23:53:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:44,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:44,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:44,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679039069] [2024-11-09 23:53:44,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679039069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:44,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:44,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:44,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109167331] [2024-11-09 23:53:44,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:44,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:53:44,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:44,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:53:44,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:44,518 INFO L87 Difference]: Start difference. First operand 33980 states and 46502 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:44,999 INFO L93 Difference]: Finished difference Result 100813 states and 137188 transitions. [2024-11-09 23:53:45,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:53:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 23:53:45,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:45,097 INFO L225 Difference]: With dead ends: 100813 [2024-11-09 23:53:45,097 INFO L226 Difference]: Without dead ends: 88339 [2024-11-09 23:53:45,129 INFO L431 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 [2024-11-09 23:53:45,282 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1603 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:45,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 469 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88339 states. [2024-11-09 23:53:45,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88339 to 34130. [2024-11-09 23:53:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34130 states, 34129 states have (on average 1.3677517653608369) internal successors, (46680), 34129 states have internal predecessors, (46680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34130 states to 34130 states and 46680 transitions. [2024-11-09 23:53:45,826 INFO L78 Accepts]: Start accepts. Automaton has 34130 states and 46680 transitions. Word has length 76 [2024-11-09 23:53:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:45,826 INFO L471 AbstractCegarLoop]: Abstraction has 34130 states and 46680 transitions. [2024-11-09 23:53:45,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 34130 states and 46680 transitions. [2024-11-09 23:53:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:53:45,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:45,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:45,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:53:45,830 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:45,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:45,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1505357663, now seen corresponding path program 1 times [2024-11-09 23:53:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109380948] [2024-11-09 23:53:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:45,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:45,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:45,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109380948] [2024-11-09 23:53:45,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109380948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:45,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:45,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:45,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550555705] [2024-11-09 23:53:45,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:45,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:53:45,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:45,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:53:45,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:45,908 INFO L87 Difference]: Start difference. First operand 34130 states and 46680 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:46,304 INFO L93 Difference]: Finished difference Result 80734 states and 110570 transitions. [2024-11-09 23:53:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:53:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 23:53:46,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:46,378 INFO L225 Difference]: With dead ends: 80734 [2024-11-09 23:53:46,379 INFO L226 Difference]: Without dead ends: 69696 [2024-11-09 23:53:46,405 INFO L431 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 [2024-11-09 23:53:46,406 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1762 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:46,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 485 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69696 states. [2024-11-09 23:53:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69696 to 34142. [2024-11-09 23:53:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34142 states, 34141 states have (on average 1.367739667848042) internal successors, (46696), 34141 states have internal predecessors, (46696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34142 states to 34142 states and 46696 transitions. [2024-11-09 23:53:47,111 INFO L78 Accepts]: Start accepts. Automaton has 34142 states and 46696 transitions. Word has length 76 [2024-11-09 23:53:47,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:47,112 INFO L471 AbstractCegarLoop]: Abstraction has 34142 states and 46696 transitions. [2024-11-09 23:53:47,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 34142 states and 46696 transitions. [2024-11-09 23:53:47,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 23:53:47,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:47,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:47,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 23:53:47,116 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:47,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash 769049223, now seen corresponding path program 1 times [2024-11-09 23:53:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:47,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623531584] [2024-11-09 23:53:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:47,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:47,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:47,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623531584] [2024-11-09 23:53:47,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623531584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:47,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:47,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:47,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778521136] [2024-11-09 23:53:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:47,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:53:47,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:53:47,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:47,214 INFO L87 Difference]: Start difference. First operand 34142 states and 46696 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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) [2024-11-09 23:53:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:47,788 INFO L93 Difference]: Finished difference Result 80442 states and 108974 transitions. [2024-11-09 23:53:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:53:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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 [2024-11-09 23:53:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:47,869 INFO L225 Difference]: With dead ends: 80442 [2024-11-09 23:53:47,869 INFO L226 Difference]: Without dead ends: 74112 [2024-11-09 23:53:47,882 INFO L431 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 [2024-11-09 23:53:47,882 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1385 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:47,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 461 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:47,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74112 states. [2024-11-09 23:53:48,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74112 to 34384. [2024-11-09 23:53:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34384 states, 34383 states have (on average 1.366285664427188) internal successors, (46977), 34383 states have internal predecessors, (46977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34384 states to 34384 states and 46977 transitions. [2024-11-09 23:53:48,635 INFO L78 Accepts]: Start accepts. Automaton has 34384 states and 46977 transitions. Word has length 77 [2024-11-09 23:53:48,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:48,636 INFO L471 AbstractCegarLoop]: Abstraction has 34384 states and 46977 transitions. [2024-11-09 23:53:48,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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) [2024-11-09 23:53:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand 34384 states and 46977 transitions. [2024-11-09 23:53:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 23:53:48,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:48,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:48,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 23:53:48,640 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:48,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1035650258, now seen corresponding path program 1 times [2024-11-09 23:53:48,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701617716] [2024-11-09 23:53:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:48,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:48,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:48,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701617716] [2024-11-09 23:53:48,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701617716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:48,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:48,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:53:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463710751] [2024-11-09 23:53:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:48,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:53:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:53:48,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:53:48,713 INFO L87 Difference]: Start difference. First operand 34384 states and 46977 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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) [2024-11-09 23:53:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:49,198 INFO L93 Difference]: Finished difference Result 87856 states and 119133 transitions. [2024-11-09 23:53:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:53:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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 [2024-11-09 23:53:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:49,268 INFO L225 Difference]: With dead ends: 87856 [2024-11-09 23:53:49,269 INFO L226 Difference]: Without dead ends: 65338 [2024-11-09 23:53:49,284 INFO L431 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 [2024-11-09 23:53:49,285 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 1213 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:49,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 421 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65338 states. [2024-11-09 23:53:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65338 to 34434. [2024-11-09 23:53:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34434 states, 34433 states have (on average 1.366044201783173) internal successors, (47037), 34433 states have internal predecessors, (47037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34434 states to 34434 states and 47037 transitions. [2024-11-09 23:53:49,909 INFO L78 Accepts]: Start accepts. Automaton has 34434 states and 47037 transitions. Word has length 77 [2024-11-09 23:53:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:49,909 INFO L471 AbstractCegarLoop]: Abstraction has 34434 states and 47037 transitions. [2024-11-09 23:53:49,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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) [2024-11-09 23:53:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 34434 states and 47037 transitions. [2024-11-09 23:53:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 23:53:49,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:49,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:49,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 23:53:49,915 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:49,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:49,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1789541176, now seen corresponding path program 1 times [2024-11-09 23:53:49,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:49,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319003989] [2024-11-09 23:53:49,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:49,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319003989] [2024-11-09 23:53:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319003989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:53:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756568159] [2024-11-09 23:53:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:50,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:53:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:53:50,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:53:50,617 INFO L87 Difference]: Start difference. First operand 34434 states and 47037 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:51,332 INFO L93 Difference]: Finished difference Result 62184 states and 84954 transitions. [2024-11-09 23:53:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:53:51,333 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-09 23:53:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:51,394 INFO L225 Difference]: With dead ends: 62184 [2024-11-09 23:53:51,394 INFO L226 Difference]: Without dead ends: 58048 [2024-11-09 23:53:51,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:53:51,414 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 1551 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:51,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 1961 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58048 states. [2024-11-09 23:53:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58048 to 34440. [2024-11-09 23:53:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34440 states, 34439 states have (on average 1.3657771712302913) internal successors, (47036), 34439 states have internal predecessors, (47036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34440 states to 34440 states and 47036 transitions. [2024-11-09 23:53:51,945 INFO L78 Accepts]: Start accepts. Automaton has 34440 states and 47036 transitions. Word has length 78 [2024-11-09 23:53:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:51,946 INFO L471 AbstractCegarLoop]: Abstraction has 34440 states and 47036 transitions. [2024-11-09 23:53:51,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 34440 states and 47036 transitions. [2024-11-09 23:53:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 23:53:51,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:51,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:51,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 23:53:51,954 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:51,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2090736877, now seen corresponding path program 1 times [2024-11-09 23:53:51,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:51,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838350792] [2024-11-09 23:53:51,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:51,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:52,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838350792] [2024-11-09 23:53:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838350792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:52,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:52,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 23:53:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438909806] [2024-11-09 23:53:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:52,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 23:53:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 23:53:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:53:52,372 INFO L87 Difference]: Start difference. First operand 34440 states and 47036 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:53,021 INFO L93 Difference]: Finished difference Result 77546 states and 106383 transitions. [2024-11-09 23:53:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:53:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-09 23:53:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:53,097 INFO L225 Difference]: With dead ends: 77546 [2024-11-09 23:53:53,098 INFO L226 Difference]: Without dead ends: 63654 [2024-11-09 23:53:53,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-09 23:53:53,121 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 458 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:53,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 2158 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63654 states. [2024-11-09 23:53:53,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63654 to 34228. [2024-11-09 23:53:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34228 states, 34227 states have (on average 1.3665527215356297) internal successors, (46773), 34227 states have internal predecessors, (46773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:53,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34228 states to 34228 states and 46773 transitions. [2024-11-09 23:53:53,823 INFO L78 Accepts]: Start accepts. Automaton has 34228 states and 46773 transitions. Word has length 79 [2024-11-09 23:53:53,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:53,823 INFO L471 AbstractCegarLoop]: Abstraction has 34228 states and 46773 transitions. [2024-11-09 23:53:53,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:53,823 INFO L276 IsEmpty]: Start isEmpty. Operand 34228 states and 46773 transitions. [2024-11-09 23:53:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 23:53:53,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:53,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:53,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 23:53:53,827 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:53,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash 443871018, now seen corresponding path program 1 times [2024-11-09 23:53:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:53,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089086103] [2024-11-09 23:53:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:53,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:53,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089086103] [2024-11-09 23:53:53,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089086103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:53,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:53,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:53,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983281982] [2024-11-09 23:53:53,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:53,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:53,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:53,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:53,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:53,898 INFO L87 Difference]: Start difference. First operand 34228 states and 46773 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) [2024-11-09 23:53:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:54,054 INFO L93 Difference]: Finished difference Result 72139 states and 98691 transitions. [2024-11-09 23:53:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:54,055 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 [2024-11-09 23:53:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:54,105 INFO L225 Difference]: With dead ends: 72139 [2024-11-09 23:53:54,105 INFO L226 Difference]: Without dead ends: 49182 [2024-11-09 23:53:54,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:54,131 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 185 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:54,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 365 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49182 states. [2024-11-09 23:53:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49182 to 49012. [2024-11-09 23:53:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49012 states, 49011 states have (on average 1.3692844463487788) internal successors, (67110), 49011 states have internal predecessors, (67110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49012 states to 49012 states and 67110 transitions. [2024-11-09 23:53:54,786 INFO L78 Accepts]: Start accepts. Automaton has 49012 states and 67110 transitions. Word has length 80 [2024-11-09 23:53:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:54,786 INFO L471 AbstractCegarLoop]: Abstraction has 49012 states and 67110 transitions. [2024-11-09 23:53:54,786 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) [2024-11-09 23:53:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 49012 states and 67110 transitions. [2024-11-09 23:53:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 23:53:54,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:54,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:54,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 23:53:54,792 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:54,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash -41075514, now seen corresponding path program 1 times [2024-11-09 23:53:54,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:54,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071602795] [2024-11-09 23:53:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:54,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:54,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071602795] [2024-11-09 23:53:54,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071602795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:54,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:54,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464271080] [2024-11-09 23:53:54,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:54,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:54,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:54,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:54,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:54,830 INFO L87 Difference]: Start difference. First operand 49012 states and 67110 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:55,237 INFO L93 Difference]: Finished difference Result 98612 states and 135098 transitions. [2024-11-09 23:53:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:55,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-09 23:53:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:55,324 INFO L225 Difference]: With dead ends: 98612 [2024-11-09 23:53:55,325 INFO L226 Difference]: Without dead ends: 67900 [2024-11-09 23:53:55,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:55,355 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 172 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:55,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 362 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:55,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67900 states. [2024-11-09 23:53:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67900 to 44361. [2024-11-09 23:53:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44361 states, 44360 states have (on average 1.3694319206492336) internal successors, (60748), 44360 states have internal predecessors, (60748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44361 states to 44361 states and 60748 transitions. [2024-11-09 23:53:56,126 INFO L78 Accepts]: Start accepts. Automaton has 44361 states and 60748 transitions. Word has length 83 [2024-11-09 23:53:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:56,127 INFO L471 AbstractCegarLoop]: Abstraction has 44361 states and 60748 transitions. [2024-11-09 23:53:56,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 44361 states and 60748 transitions. [2024-11-09 23:53:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:53:56,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:56,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:56,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 23:53:56,134 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:56,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:56,135 INFO L85 PathProgramCache]: Analyzing trace with hash -665669387, now seen corresponding path program 1 times [2024-11-09 23:53:56,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:56,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629031144] [2024-11-09 23:53:56,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:56,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:56,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:56,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629031144] [2024-11-09 23:53:56,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629031144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:56,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:56,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52203030] [2024-11-09 23:53:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:56,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:56,186 INFO L87 Difference]: Start difference. First operand 44361 states and 60748 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:56,321 INFO L93 Difference]: Finished difference Result 64117 states and 87663 transitions. [2024-11-09 23:53:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-09 23:53:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:56,363 INFO L225 Difference]: With dead ends: 64117 [2024-11-09 23:53:56,364 INFO L226 Difference]: Without dead ends: 38394 [2024-11-09 23:53:56,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:56,389 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 148 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:56,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 578 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38394 states. [2024-11-09 23:53:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38394 to 38392. [2024-11-09 23:53:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38392 states, 38391 states have (on average 1.353780834049647) internal successors, (51973), 38391 states have internal predecessors, (51973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38392 states to 38392 states and 51973 transitions. [2024-11-09 23:53:57,062 INFO L78 Accepts]: Start accepts. Automaton has 38392 states and 51973 transitions. Word has length 84 [2024-11-09 23:53:57,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:57,063 INFO L471 AbstractCegarLoop]: Abstraction has 38392 states and 51973 transitions. [2024-11-09 23:53:57,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 38392 states and 51973 transitions. [2024-11-09 23:53:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 23:53:57,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:57,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:57,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 23:53:57,068 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:57,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash -329595511, now seen corresponding path program 1 times [2024-11-09 23:53:57,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824293313] [2024-11-09 23:53:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:57,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824293313] [2024-11-09 23:53:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824293313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:57,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867629564] [2024-11-09 23:53:57,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:57,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:57,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:57,101 INFO L87 Difference]: Start difference. First operand 38392 states and 51973 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:57,253 INFO L93 Difference]: Finished difference Result 75563 states and 102420 transitions. [2024-11-09 23:53:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:57,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-09 23:53:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:57,326 INFO L225 Difference]: With dead ends: 75563 [2024-11-09 23:53:57,326 INFO L226 Difference]: Without dead ends: 53276 [2024-11-09 23:53:57,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:57,353 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 181 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:57,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 368 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:57,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53276 states. [2024-11-09 23:53:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53276 to 37349. [2024-11-09 23:53:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37349 states, 37348 states have (on average 1.3517457427439221) internal successors, (50485), 37348 states have internal predecessors, (50485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37349 states to 37349 states and 50485 transitions. [2024-11-09 23:53:58,007 INFO L78 Accepts]: Start accepts. Automaton has 37349 states and 50485 transitions. Word has length 85 [2024-11-09 23:53:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:58,007 INFO L471 AbstractCegarLoop]: Abstraction has 37349 states and 50485 transitions. [2024-11-09 23:53:58,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 37349 states and 50485 transitions. [2024-11-09 23:53:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 23:53:58,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:58,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:58,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 23:53:58,013 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:58,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash -476624587, now seen corresponding path program 1 times [2024-11-09 23:53:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:58,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538908095] [2024-11-09 23:53:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:58,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:58,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538908095] [2024-11-09 23:53:58,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538908095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:58,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:58,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:53:58,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027141835] [2024-11-09 23:53:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:58,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:53:58,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:53:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:53:58,578 INFO L87 Difference]: Start difference. First operand 37349 states and 50485 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:59,420 INFO L93 Difference]: Finished difference Result 121357 states and 164082 transitions. [2024-11-09 23:53:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 23:53:59,421 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-09 23:53:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:59,564 INFO L225 Difference]: With dead ends: 121357 [2024-11-09 23:53:59,564 INFO L226 Difference]: Without dead ends: 114657 [2024-11-09 23:53:59,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:53:59,609 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 1958 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:59,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 2343 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:53:59,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114657 states. [2024-11-09 23:54:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114657 to 36159. [2024-11-09 23:54:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36159 states, 36158 states have (on average 1.3528679683610818) internal successors, (48917), 36158 states have internal predecessors, (48917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36159 states to 36159 states and 48917 transitions. [2024-11-09 23:54:00,717 INFO L78 Accepts]: Start accepts. Automaton has 36159 states and 48917 transitions. Word has length 86 [2024-11-09 23:54:00,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:00,717 INFO L471 AbstractCegarLoop]: Abstraction has 36159 states and 48917 transitions. [2024-11-09 23:54:00,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 36159 states and 48917 transitions. [2024-11-09 23:54:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 23:54:00,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:00,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:00,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 23:54:00,731 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:00,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:00,732 INFO L85 PathProgramCache]: Analyzing trace with hash -257314374, now seen corresponding path program 1 times [2024-11-09 23:54:00,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:00,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789524050] [2024-11-09 23:54:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:00,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:00,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:00,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789524050] [2024-11-09 23:54:00,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789524050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:00,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:00,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:00,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178219863] [2024-11-09 23:54:00,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:00,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:00,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:00,827 INFO L87 Difference]: Start difference. First operand 36159 states and 48917 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:01,278 INFO L93 Difference]: Finished difference Result 78518 states and 106812 transitions. [2024-11-09 23:54:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:01,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-09 23:54:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:01,346 INFO L225 Difference]: With dead ends: 78518 [2024-11-09 23:54:01,346 INFO L226 Difference]: Without dead ends: 56208 [2024-11-09 23:54:01,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:01,365 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 124 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:01,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 500 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56208 states. [2024-11-09 23:54:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56208 to 54440. [2024-11-09 23:54:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54440 states, 54439 states have (on average 1.3485368945057772) internal successors, (73413), 54439 states have internal predecessors, (73413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54440 states to 54440 states and 73413 transitions. [2024-11-09 23:54:01,892 INFO L78 Accepts]: Start accepts. Automaton has 54440 states and 73413 transitions. Word has length 93 [2024-11-09 23:54:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:01,892 INFO L471 AbstractCegarLoop]: Abstraction has 54440 states and 73413 transitions. [2024-11-09 23:54:01,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:01,893 INFO L276 IsEmpty]: Start isEmpty. Operand 54440 states and 73413 transitions. [2024-11-09 23:54:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:54:01,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:01,898 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:01,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 23:54:01,898 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:01,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash -830810777, now seen corresponding path program 1 times [2024-11-09 23:54:01,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:01,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822565690] [2024-11-09 23:54:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:01,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:02,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822565690] [2024-11-09 23:54:02,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822565690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:02,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:02,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:54:02,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830084395] [2024-11-09 23:54:02,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:02,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:02,360 INFO L87 Difference]: Start difference. First operand 54440 states and 73413 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:02,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:02,797 INFO L93 Difference]: Finished difference Result 111101 states and 150403 transitions. [2024-11-09 23:54:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:54:02,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-09 23:54:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:02,899 INFO L225 Difference]: With dead ends: 111101 [2024-11-09 23:54:02,899 INFO L226 Difference]: Without dead ends: 88534 [2024-11-09 23:54:02,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:54:02,935 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1615 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:02,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 464 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88534 states. [2024-11-09 23:54:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88534 to 55109. [2024-11-09 23:54:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55109 states, 55108 states have (on average 1.348279741598316) internal successors, (74301), 55108 states have internal predecessors, (74301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55109 states to 55109 states and 74301 transitions. [2024-11-09 23:54:04,008 INFO L78 Accepts]: Start accepts. Automaton has 55109 states and 74301 transitions. Word has length 98 [2024-11-09 23:54:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:04,009 INFO L471 AbstractCegarLoop]: Abstraction has 55109 states and 74301 transitions. [2024-11-09 23:54:04,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 55109 states and 74301 transitions. [2024-11-09 23:54:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:54:04,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:04,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:04,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 23:54:04,015 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:04,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:04,015 INFO L85 PathProgramCache]: Analyzing trace with hash -45073167, now seen corresponding path program 1 times [2024-11-09 23:54:04,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:04,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203578698] [2024-11-09 23:54:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:04,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203578698] [2024-11-09 23:54:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203578698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:04,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:04,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:54:04,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856736223] [2024-11-09 23:54:04,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:04,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:04,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:04,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:04,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:04,101 INFO L87 Difference]: Start difference. First operand 55109 states and 74301 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:04,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:04,655 INFO L93 Difference]: Finished difference Result 170688 states and 231844 transitions. [2024-11-09 23:54:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:54:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-09 23:54:04,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:05,244 INFO L225 Difference]: With dead ends: 170688 [2024-11-09 23:54:05,245 INFO L226 Difference]: Without dead ends: 132274 [2024-11-09 23:54:05,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:54:05,277 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1489 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:05,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 445 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:05,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132274 states. [2024-11-09 23:54:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132274 to 77331. [2024-11-09 23:54:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77331 states, 77330 states have (on average 1.3637527479632743) internal successors, (105459), 77330 states have internal predecessors, (105459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77331 states to 77331 states and 105459 transitions. [2024-11-09 23:54:06,815 INFO L78 Accepts]: Start accepts. Automaton has 77331 states and 105459 transitions. Word has length 101 [2024-11-09 23:54:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:06,815 INFO L471 AbstractCegarLoop]: Abstraction has 77331 states and 105459 transitions. [2024-11-09 23:54:06,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 77331 states and 105459 transitions. [2024-11-09 23:54:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:54:06,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:06,822 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:06,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 23:54:06,822 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:06,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1266181953, now seen corresponding path program 1 times [2024-11-09 23:54:06,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642081750] [2024-11-09 23:54:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:06,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:06,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642081750] [2024-11-09 23:54:06,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642081750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:06,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:06,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:54:06,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984983679] [2024-11-09 23:54:06,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:06,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:06,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:06,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:06,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:06,964 INFO L87 Difference]: Start difference. First operand 77331 states and 105459 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:07,643 INFO L93 Difference]: Finished difference Result 201636 states and 274983 transitions. [2024-11-09 23:54:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:54:07,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 23:54:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:07,881 INFO L225 Difference]: With dead ends: 201636 [2024-11-09 23:54:07,882 INFO L226 Difference]: Without dead ends: 169416 [2024-11-09 23:54:07,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:54:07,943 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1307 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:07,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 440 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169416 states. [2024-11-09 23:54:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169416 to 111596. [2024-11-09 23:54:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111596 states, 111595 states have (on average 1.3642457099332408) internal successors, (152243), 111595 states have internal predecessors, (152243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111596 states to 111596 states and 152243 transitions. [2024-11-09 23:54:10,094 INFO L78 Accepts]: Start accepts. Automaton has 111596 states and 152243 transitions. Word has length 103 [2024-11-09 23:54:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:10,094 INFO L471 AbstractCegarLoop]: Abstraction has 111596 states and 152243 transitions. [2024-11-09 23:54:10,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 111596 states and 152243 transitions. [2024-11-09 23:54:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 23:54:10,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:10,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:10,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 23:54:10,109 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:10,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:10,110 INFO L85 PathProgramCache]: Analyzing trace with hash 660392114, now seen corresponding path program 1 times [2024-11-09 23:54:10,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:10,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682659341] [2024-11-09 23:54:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:10,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 23:54:10,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682659341] [2024-11-09 23:54:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682659341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:10,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:10,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:10,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024472330] [2024-11-09 23:54:10,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:10,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:10,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:10,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:10,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:10,184 INFO L87 Difference]: Start difference. First operand 111596 states and 152243 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:11,344 INFO L93 Difference]: Finished difference Result 264410 states and 358715 transitions. [2024-11-09 23:54:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:11,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-09 23:54:11,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:11,687 INFO L225 Difference]: With dead ends: 264410 [2024-11-09 23:54:11,687 INFO L226 Difference]: Without dead ends: 153889 [2024-11-09 23:54:11,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:11,773 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 116 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:11,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 488 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:11,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153889 states. [2024-11-09 23:54:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153889 to 146534. [2024-11-09 23:54:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146534 states, 146533 states have (on average 1.3449393651941883) internal successors, (197078), 146533 states have internal predecessors, (197078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146534 states to 146534 states and 197078 transitions. [2024-11-09 23:54:14,378 INFO L78 Accepts]: Start accepts. Automaton has 146534 states and 197078 transitions. Word has length 115 [2024-11-09 23:54:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:14,378 INFO L471 AbstractCegarLoop]: Abstraction has 146534 states and 197078 transitions. [2024-11-09 23:54:14,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 146534 states and 197078 transitions. [2024-11-09 23:54:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:54:14,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:14,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:14,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 23:54:14,423 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:14,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:14,423 INFO L85 PathProgramCache]: Analyzing trace with hash -811288022, now seen corresponding path program 1 times [2024-11-09 23:54:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:14,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903132237] [2024-11-09 23:54:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:14,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 23:54:14,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:14,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903132237] [2024-11-09 23:54:14,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903132237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:14,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:14,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:14,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925873069] [2024-11-09 23:54:14,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:14,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:14,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:14,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:14,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:14,652 INFO L87 Difference]: Start difference. First operand 146534 states and 197078 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:15,406 INFO L93 Difference]: Finished difference Result 340752 states and 455826 transitions. [2024-11-09 23:54:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-09 23:54:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:15,664 INFO L225 Difference]: With dead ends: 340752 [2024-11-09 23:54:15,664 INFO L226 Difference]: Without dead ends: 195221 [2024-11-09 23:54:15,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:15,777 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 103 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:15,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195221 states. [2024-11-09 23:54:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195221 to 182763. [2024-11-09 23:54:18,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182763 states, 182762 states have (on average 1.322391963318414) internal successors, (241683), 182762 states have internal predecessors, (241683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)