./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e296f9d0ac3a11e23992c5bf18917d5440a5485ef02dc07f1520f584e052eef8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:46:36,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:46:36,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:46:36,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:46:36,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:46:36,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:46:36,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:46:36,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:46:36,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:46:36,377 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:46:36,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:46:36,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:46:36,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:46:36,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:46:36,379 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:46:36,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:46:36,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:46:36,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:46:36,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:46:36,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:46:36,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:46:36,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:46:36,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:46:36,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:46:36,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:46:36,385 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:46:36,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:46:36,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:46:36,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:46:36,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:46:36,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:46:36,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:46:36,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:46:36,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:46:36,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:46:36,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:46:36,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:46:36,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:46:36,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:46:36,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:46:36,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:46:36,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:46:36,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e296f9d0ac3a11e23992c5bf18917d5440a5485ef02dc07f1520f584e052eef8 [2024-11-09 23:46:36,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:46:36,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:46:36,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:46:36,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:46:36,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:46:36,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-09 23:46:38,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:46:38,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:46:38,348 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-09 23:46:38,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c217d75b0/1d6407eadb0b4b20bb59c02a2f7bfd4f/FLAGe9f6889bf [2024-11-09 23:46:38,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c217d75b0/1d6407eadb0b4b20bb59c02a2f7bfd4f [2024-11-09 23:46:38,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:46:38,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:46:38,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:46:38,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:46:38,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:46:38,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:46:38" (1/1) ... [2024-11-09 23:46:38,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfd2898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:38, skipping insertion in model container [2024-11-09 23:46:38,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:46:38" (1/1) ... [2024-11-09 23:46:38,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:46:38,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2024-11-09 23:46:39,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:46:39,066 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:46:39,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2024-11-09 23:46:39,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:46:39,152 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:46:39,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39 WrapperNode [2024-11-09 23:46:39,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:46:39,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:46:39,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:46:39,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:46:39,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,256 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 633 [2024-11-09 23:46:39,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:46:39,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:46:39,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:46:39,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:46:39,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,307 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 23:46:39,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,320 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:46:39,329 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:46:39,329 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:46:39,329 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:46:39,331 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (1/1) ... [2024-11-09 23:46:39,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:46:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:46:39,362 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 23:46:39,364 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 23:46:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:46:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:46:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:46:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:46:39,552 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:46:39,554 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:46:40,078 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L515: havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,079 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L515: havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,079 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L515: havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,079 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,079 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,079 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,080 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,081 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,081 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,081 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L383: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:46:40,081 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L616: havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,081 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L616: havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,082 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L616: havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,082 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,082 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,082 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:46:40,082 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L113: havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1; [2024-11-09 23:46:40,133 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-09 23:46:40,133 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:46:40,158 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:46:40,161 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:46:40,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:46:40 BoogieIcfgContainer [2024-11-09 23:46:40,162 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:46:40,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:46:40,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:46:40,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:46:40,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:46:38" (1/3) ... [2024-11-09 23:46:40,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178bcdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:46:40, skipping insertion in model container [2024-11-09 23:46:40,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:46:39" (2/3) ... [2024-11-09 23:46:40,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178bcdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:46:40, skipping insertion in model container [2024-11-09 23:46:40,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:46:40" (3/3) ... [2024-11-09 23:46:40,174 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-09 23:46:40,189 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:46:40,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:46:40,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:46:40,268 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;@6f0f875, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:46:40,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:46:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 162 states have (on average 1.6358024691358024) internal successors, (265), 163 states have internal predecessors, (265), 0 states have call successors, (0), 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 23:46:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 23:46:40,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:40,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:40,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:40,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:40,289 INFO L85 PathProgramCache]: Analyzing trace with hash 732354146, now seen corresponding path program 1 times [2024-11-09 23:46:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:40,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626442817] [2024-11-09 23:46:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:40,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:40,791 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 23:46:40,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:40,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626442817] [2024-11-09 23:46:40,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626442817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:40,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:40,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190778192] [2024-11-09 23:46:40,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:40,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:40,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:40,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:40,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:40,824 INFO L87 Difference]: Start difference. First operand has 164 states, 162 states have (on average 1.6358024691358024) internal successors, (265), 163 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:40,907 INFO L93 Difference]: Finished difference Result 348 states and 545 transitions. [2024-11-09 23:46:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-09 23:46:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:40,921 INFO L225 Difference]: With dead ends: 348 [2024-11-09 23:46:40,921 INFO L226 Difference]: Without dead ends: 238 [2024-11-09 23:46:40,924 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 23:46:40,927 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 150 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:40,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 457 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-09 23:46:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2024-11-09 23:46:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.4638297872340424) internal successors, (344), 235 states have internal predecessors, (344), 0 states have call successors, (0), 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 23:46:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 344 transitions. [2024-11-09 23:46:40,973 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 344 transitions. Word has length 60 [2024-11-09 23:46:40,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:40,973 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 344 transitions. [2024-11-09 23:46:40,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 344 transitions. [2024-11-09 23:46:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:46:40,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:40,979 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 23:46:40,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:46:40,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:40,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:40,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1177860429, now seen corresponding path program 1 times [2024-11-09 23:46:40,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:40,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900926986] [2024-11-09 23:46:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:40,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:41,191 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 23:46:41,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:41,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900926986] [2024-11-09 23:46:41,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900926986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:41,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:41,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:41,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135719111] [2024-11-09 23:46:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:41,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:41,199 INFO L87 Difference]: Start difference. First operand 236 states and 344 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:41,237 INFO L93 Difference]: Finished difference Result 570 states and 846 transitions. [2024-11-09 23:46:41,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-09 23:46:41,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:41,240 INFO L225 Difference]: With dead ends: 570 [2024-11-09 23:46:41,240 INFO L226 Difference]: Without dead ends: 394 [2024-11-09 23:46:41,242 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 23:46:41,243 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 127 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:41,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 434 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-09 23:46:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2024-11-09 23:46:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 391 states have (on average 1.4757033248081841) internal successors, (577), 391 states have internal predecessors, (577), 0 states have call successors, (0), 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 23:46:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 577 transitions. [2024-11-09 23:46:41,266 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 577 transitions. Word has length 63 [2024-11-09 23:46:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:41,267 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 577 transitions. [2024-11-09 23:46:41,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 577 transitions. [2024-11-09 23:46:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:46:41,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:41,270 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 23:46:41,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:46:41,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:41,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1574115393, now seen corresponding path program 1 times [2024-11-09 23:46:41,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:41,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214228680] [2024-11-09 23:46:41,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:41,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:41,456 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 23:46:41,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:41,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214228680] [2024-11-09 23:46:41,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214228680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:41,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:41,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:41,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139520923] [2024-11-09 23:46:41,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:41,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:41,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:41,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:41,465 INFO L87 Difference]: Start difference. First operand 392 states and 577 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:41,503 INFO L93 Difference]: Finished difference Result 1020 states and 1515 transitions. [2024-11-09 23:46:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 23:46:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:41,508 INFO L225 Difference]: With dead ends: 1020 [2024-11-09 23:46:41,508 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:46:41,510 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 23:46:41,511 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 120 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:41,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 435 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:46:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 686. [2024-11-09 23:46:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.475912408759124) internal successors, (1011), 685 states have internal predecessors, (1011), 0 states have call successors, (0), 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 23:46:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1011 transitions. [2024-11-09 23:46:41,547 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1011 transitions. Word has length 66 [2024-11-09 23:46:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:41,548 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 1011 transitions. [2024-11-09 23:46:41,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1011 transitions. [2024-11-09 23:46:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:46:41,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:41,554 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 23:46:41,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:46:41,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:41,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1310810288, now seen corresponding path program 1 times [2024-11-09 23:46:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874905630] [2024-11-09 23:46:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:41,752 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 23:46:41,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:41,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874905630] [2024-11-09 23:46:41,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874905630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:41,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:41,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:41,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890084955] [2024-11-09 23:46:41,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:41,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:41,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:41,756 INFO L87 Difference]: Start difference. First operand 686 states and 1011 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 23:46:41,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:41,979 INFO L93 Difference]: Finished difference Result 3480 states and 5219 transitions. [2024-11-09 23:46:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:46:41,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 23:46:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:41,990 INFO L225 Difference]: With dead ends: 3480 [2024-11-09 23:46:41,991 INFO L226 Difference]: Without dead ends: 2854 [2024-11-09 23:46:41,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:46:41,994 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 867 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:41,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1698 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:41,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2024-11-09 23:46:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1270. [2024-11-09 23:46:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 1.4869976359338062) internal successors, (1887), 1269 states have internal predecessors, (1887), 0 states have call successors, (0), 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 23:46:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1887 transitions. [2024-11-09 23:46:42,039 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1887 transitions. Word has length 69 [2024-11-09 23:46:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:42,041 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1887 transitions. [2024-11-09 23:46:42,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 23:46:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1887 transitions. [2024-11-09 23:46:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:46:42,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:42,047 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 23:46:42,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:46:42,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:42,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 236297659, now seen corresponding path program 1 times [2024-11-09 23:46:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:42,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223846711] [2024-11-09 23:46:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:42,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:42,185 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 23:46:42,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:42,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223846711] [2024-11-09 23:46:42,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223846711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:42,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:42,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:42,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775605214] [2024-11-09 23:46:42,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:42,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:42,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:42,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:42,190 INFO L87 Difference]: Start difference. First operand 1270 states and 1887 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:42,225 INFO L93 Difference]: Finished difference Result 3021 states and 4509 transitions. [2024-11-09 23:46:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:42,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:42,234 INFO L225 Difference]: With dead ends: 3021 [2024-11-09 23:46:42,234 INFO L226 Difference]: Without dead ends: 1811 [2024-11-09 23:46:42,236 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 23:46:42,238 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 135 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:42,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 541 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-09 23:46:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1809. [2024-11-09 23:46:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1808 states have (on average 1.4878318584070795) internal successors, (2690), 1808 states have internal predecessors, (2690), 0 states have call successors, (0), 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 23:46:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2690 transitions. [2024-11-09 23:46:42,283 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2690 transitions. Word has length 71 [2024-11-09 23:46:42,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:42,284 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2690 transitions. [2024-11-09 23:46:42,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2690 transitions. [2024-11-09 23:46:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:46:42,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:42,288 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 23:46:42,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:46:42,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:42,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1422251365, now seen corresponding path program 1 times [2024-11-09 23:46:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:42,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255480925] [2024-11-09 23:46:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:42,380 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 23:46:42,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255480925] [2024-11-09 23:46:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255480925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:42,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:42,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:42,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500652124] [2024-11-09 23:46:42,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:42,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:42,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:42,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:42,382 INFO L87 Difference]: Start difference. First operand 1809 states and 2690 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:42,416 INFO L93 Difference]: Finished difference Result 3416 states and 5094 transitions. [2024-11-09 23:46:42,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:42,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:42,425 INFO L225 Difference]: With dead ends: 3416 [2024-11-09 23:46:42,425 INFO L226 Difference]: Without dead ends: 2488 [2024-11-09 23:46:42,426 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 23:46:42,427 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 128 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:42,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 529 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-11-09 23:46:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2486. [2024-11-09 23:46:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2485 states have (on average 1.4804828973843058) internal successors, (3679), 2485 states have internal predecessors, (3679), 0 states have call successors, (0), 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 23:46:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3679 transitions. [2024-11-09 23:46:42,509 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3679 transitions. Word has length 71 [2024-11-09 23:46:42,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:42,509 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3679 transitions. [2024-11-09 23:46:42,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3679 transitions. [2024-11-09 23:46:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:46:42,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:42,511 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 23:46:42,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:46:42,512 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:42,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1340016770, now seen corresponding path program 1 times [2024-11-09 23:46:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:42,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527374807] [2024-11-09 23:46:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:42,619 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 23:46:42,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:42,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527374807] [2024-11-09 23:46:42,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527374807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:42,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:42,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:46:42,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176086883] [2024-11-09 23:46:42,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:42,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:46:42,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:42,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:46:42,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:46:42,622 INFO L87 Difference]: Start difference. First operand 2486 states and 3679 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 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 23:46:42,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:42,726 INFO L93 Difference]: Finished difference Result 9338 states and 13860 transitions. [2024-11-09 23:46:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:46:42,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 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 23:46:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:42,750 INFO L225 Difference]: With dead ends: 9338 [2024-11-09 23:46:42,750 INFO L226 Difference]: Without dead ends: 6930 [2024-11-09 23:46:42,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:42,759 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 439 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:42,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 780 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:42,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2024-11-09 23:46:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 4695. [2024-11-09 23:46:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4694 states have (on average 1.4752876011930123) internal successors, (6925), 4694 states have internal predecessors, (6925), 0 states have call successors, (0), 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 23:46:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 6925 transitions. [2024-11-09 23:46:42,887 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 6925 transitions. Word has length 71 [2024-11-09 23:46:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:42,887 INFO L471 AbstractCegarLoop]: Abstraction has 4695 states and 6925 transitions. [2024-11-09 23:46:42,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 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 23:46:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 6925 transitions. [2024-11-09 23:46:42,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:46:42,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:42,888 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 23:46:42,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:46:42,889 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:42,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:42,889 INFO L85 PathProgramCache]: Analyzing trace with hash -899249925, now seen corresponding path program 1 times [2024-11-09 23:46:42,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:42,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886915054] [2024-11-09 23:46:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:42,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:42,971 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 23:46:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886915054] [2024-11-09 23:46:42,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886915054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:42,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:42,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024372405] [2024-11-09 23:46:42,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:42,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:42,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:42,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:42,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:42,973 INFO L87 Difference]: Start difference. First operand 4695 states and 6925 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:43,020 INFO L93 Difference]: Finished difference Result 9046 states and 13357 transitions. [2024-11-09 23:46:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:43,043 INFO L225 Difference]: With dead ends: 9046 [2024-11-09 23:46:43,044 INFO L226 Difference]: Without dead ends: 6482 [2024-11-09 23:46:43,050 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 23:46:43,052 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 121 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:43,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 509 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6482 states. [2024-11-09 23:46:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6482 to 6480. [2024-11-09 23:46:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 6479 states have (on average 1.4638061429232907) internal successors, (9484), 6479 states have internal predecessors, (9484), 0 states have call successors, (0), 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 23:46:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9484 transitions. [2024-11-09 23:46:43,242 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9484 transitions. Word has length 71 [2024-11-09 23:46:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:43,243 INFO L471 AbstractCegarLoop]: Abstraction has 6480 states and 9484 transitions. [2024-11-09 23:46:43,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 23:46:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9484 transitions. [2024-11-09 23:46:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 23:46:43,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:43,244 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] [2024-11-09 23:46:43,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:46:43,245 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:43,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:43,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1500943477, now seen corresponding path program 1 times [2024-11-09 23:46:43,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:43,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005972583] [2024-11-09 23:46:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:43,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:43,362 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 23:46:43,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:43,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005972583] [2024-11-09 23:46:43,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005972583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:43,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:43,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:46:43,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305650806] [2024-11-09 23:46:43,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:43,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:46:43,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:43,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:46:43,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:46:43,368 INFO L87 Difference]: Start difference. First operand 6480 states and 9484 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:46:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:43,519 INFO L93 Difference]: Finished difference Result 20819 states and 30535 transitions. [2024-11-09 23:46:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:46:43,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-09 23:46:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:43,569 INFO L225 Difference]: With dead ends: 20819 [2024-11-09 23:46:43,569 INFO L226 Difference]: Without dead ends: 14432 [2024-11-09 23:46:43,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:43,583 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 437 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:43,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 782 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14432 states. [2024-11-09 23:46:43,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14432 to 10421. [2024-11-09 23:46:43,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10421 states, 10420 states have (on average 1.4551823416506717) internal successors, (15163), 10420 states have internal predecessors, (15163), 0 states have call successors, (0), 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 23:46:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10421 states to 10421 states and 15163 transitions. [2024-11-09 23:46:43,823 INFO L78 Accepts]: Start accepts. Automaton has 10421 states and 15163 transitions. Word has length 73 [2024-11-09 23:46:43,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:43,824 INFO L471 AbstractCegarLoop]: Abstraction has 10421 states and 15163 transitions. [2024-11-09 23:46:43,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 23:46:43,824 INFO L276 IsEmpty]: Start isEmpty. Operand 10421 states and 15163 transitions. [2024-11-09 23:46:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 23:46:43,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:43,825 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] [2024-11-09 23:46:43,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:46:43,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:43,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -279869955, now seen corresponding path program 1 times [2024-11-09 23:46:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:43,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089673826] [2024-11-09 23:46:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:43,922 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 23:46:43,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:43,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089673826] [2024-11-09 23:46:43,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089673826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:43,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:43,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:46:43,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016634478] [2024-11-09 23:46:43,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:43,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:46:43,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:43,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:46:43,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:46:43,925 INFO L87 Difference]: Start difference. First operand 10421 states and 15163 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 23:46:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:44,186 INFO L93 Difference]: Finished difference Result 32993 states and 48081 transitions. [2024-11-09 23:46:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:46:44,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-09 23:46:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:44,234 INFO L225 Difference]: With dead ends: 32993 [2024-11-09 23:46:44,234 INFO L226 Difference]: Without dead ends: 22665 [2024-11-09 23:46:44,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:44,254 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 435 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:44,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 784 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:44,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22665 states. [2024-11-09 23:46:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22665 to 16490. [2024-11-09 23:46:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16490 states, 16489 states have (on average 1.4461762387045909) internal successors, (23846), 16489 states have internal predecessors, (23846), 0 states have call successors, (0), 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 23:46:44,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16490 states to 16490 states and 23846 transitions. [2024-11-09 23:46:44,590 INFO L78 Accepts]: Start accepts. Automaton has 16490 states and 23846 transitions. Word has length 75 [2024-11-09 23:46:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:44,590 INFO L471 AbstractCegarLoop]: Abstraction has 16490 states and 23846 transitions. [2024-11-09 23:46:44,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 23:46:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 16490 states and 23846 transitions. [2024-11-09 23:46:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 23:46:44,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:44,592 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 23:46:44,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:46:44,592 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:44,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:44,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1908447989, now seen corresponding path program 1 times [2024-11-09 23:46:44,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:44,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261373284] [2024-11-09 23:46:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:44,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:44,956 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 23:46:44,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:44,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261373284] [2024-11-09 23:46:44,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261373284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:44,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:44,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:44,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305111757] [2024-11-09 23:46:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:44,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:44,960 INFO L87 Difference]: Start difference. First operand 16490 states and 23846 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 23:46:45,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:45,148 INFO L93 Difference]: Finished difference Result 32889 states and 47570 transitions. [2024-11-09 23:46:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:45,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 23:46:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:45,181 INFO L225 Difference]: With dead ends: 32889 [2024-11-09 23:46:45,181 INFO L226 Difference]: Without dead ends: 16492 [2024-11-09 23:46:45,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:46:45,204 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 361 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:45,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 637 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16492 states. [2024-11-09 23:46:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16492 to 16490. [2024-11-09 23:46:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16490 states, 16489 states have (on average 1.4370792649645219) internal successors, (23696), 16489 states have internal predecessors, (23696), 0 states have call successors, (0), 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 23:46:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16490 states to 16490 states and 23696 transitions. [2024-11-09 23:46:45,526 INFO L78 Accepts]: Start accepts. Automaton has 16490 states and 23696 transitions. Word has length 78 [2024-11-09 23:46:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:45,527 INFO L471 AbstractCegarLoop]: Abstraction has 16490 states and 23696 transitions. [2024-11-09 23:46:45,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 23:46:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 16490 states and 23696 transitions. [2024-11-09 23:46:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 23:46:45,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:45,528 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 23:46:45,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:46:45,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1220679112, now seen corresponding path program 1 times [2024-11-09 23:46:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:45,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414141046] [2024-11-09 23:46:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:45,714 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 23:46:45,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:45,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414141046] [2024-11-09 23:46:45,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414141046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:45,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:45,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:45,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013213620] [2024-11-09 23:46:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:45,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:45,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:45,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:45,717 INFO L87 Difference]: Start difference. First operand 16490 states and 23696 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 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 23:46:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:45,931 INFO L93 Difference]: Finished difference Result 47496 states and 68424 transitions. [2024-11-09 23:46:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 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 23:46:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:45,992 INFO L225 Difference]: With dead ends: 47496 [2024-11-09 23:46:45,992 INFO L226 Difference]: Without dead ends: 31099 [2024-11-09 23:46:46,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:46:46,020 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 349 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:46,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 642 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:46,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31099 states. [2024-11-09 23:46:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31099 to 31097. [2024-11-09 23:46:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31097 states, 31096 states have (on average 1.4289940828402368) internal successors, (44436), 31096 states have internal predecessors, (44436), 0 states have call successors, (0), 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 23:46:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31097 states to 31097 states and 44436 transitions. [2024-11-09 23:46:46,482 INFO L78 Accepts]: Start accepts. Automaton has 31097 states and 44436 transitions. Word has length 85 [2024-11-09 23:46:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:46,483 INFO L471 AbstractCegarLoop]: Abstraction has 31097 states and 44436 transitions. [2024-11-09 23:46:46,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 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 23:46:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 31097 states and 44436 transitions. [2024-11-09 23:46:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 23:46:46,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:46,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:46,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:46:46,484 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:46,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1633708821, now seen corresponding path program 1 times [2024-11-09 23:46:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639064623] [2024-11-09 23:46:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:46,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:47,029 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 23:46:47,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:47,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639064623] [2024-11-09 23:46:47,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639064623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:47,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:47,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:47,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258971602] [2024-11-09 23:46:47,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:47,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:47,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:47,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:47,032 INFO L87 Difference]: Start difference. First operand 31097 states and 44436 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:47,231 INFO L93 Difference]: Finished difference Result 34388 states and 48113 transitions. [2024-11-09 23:46:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:47,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-09 23:46:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:47,285 INFO L225 Difference]: With dead ends: 34388 [2024-11-09 23:46:47,285 INFO L226 Difference]: Without dead ends: 34386 [2024-11-09 23:46:47,299 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 23:46:47,300 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:47,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 899 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34386 states. [2024-11-09 23:46:47,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34386 to 34386. [2024-11-09 23:46:47,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34386 states, 34385 states have (on average 1.387698124182056) internal successors, (47716), 34385 states have internal predecessors, (47716), 0 states have call successors, (0), 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 23:46:47,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34386 states to 34386 states and 47716 transitions. [2024-11-09 23:46:47,776 INFO L78 Accepts]: Start accepts. Automaton has 34386 states and 47716 transitions. Word has length 88 [2024-11-09 23:46:47,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:47,776 INFO L471 AbstractCegarLoop]: Abstraction has 34386 states and 47716 transitions. [2024-11-09 23:46:47,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 34386 states and 47716 transitions. [2024-11-09 23:46:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:46:47,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:47,779 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:47,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:46:47,780 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:47,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:47,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1013081318, now seen corresponding path program 1 times [2024-11-09 23:46:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:47,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399134831] [2024-11-09 23:46:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:46:47,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:47,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399134831] [2024-11-09 23:46:47,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399134831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:47,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:47,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:47,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047273814] [2024-11-09 23:46:47,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:47,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:47,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:47,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:47,928 INFO L87 Difference]: Start difference. First operand 34386 states and 47716 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 23:46:48,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:48,382 INFO L93 Difference]: Finished difference Result 89894 states and 124856 transitions. [2024-11-09 23:46:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:48,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 23:46:48,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:48,491 INFO L225 Difference]: With dead ends: 89894 [2024-11-09 23:46:48,491 INFO L226 Difference]: Without dead ends: 70046 [2024-11-09 23:46:48,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:46:48,527 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 539 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:48,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1140 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:48,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70046 states. [2024-11-09 23:46:49,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70046 to 53550. [2024-11-09 23:46:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53550 states, 53549 states have (on average 1.385385347999029) internal successors, (74186), 53549 states have internal predecessors, (74186), 0 states have call successors, (0), 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 23:46:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53550 states to 53550 states and 74186 transitions. [2024-11-09 23:46:49,607 INFO L78 Accepts]: Start accepts. Automaton has 53550 states and 74186 transitions. Word has length 116 [2024-11-09 23:46:49,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:49,607 INFO L471 AbstractCegarLoop]: Abstraction has 53550 states and 74186 transitions. [2024-11-09 23:46:49,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 23:46:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 53550 states and 74186 transitions. [2024-11-09 23:46:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:46:49,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:49,609 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:49,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:46:49,610 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:49,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash 172872388, now seen corresponding path program 1 times [2024-11-09 23:46:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4208010] [2024-11-09 23:46:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 23:46:49,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:49,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4208010] [2024-11-09 23:46:49,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4208010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:49,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:49,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122283425] [2024-11-09 23:46:49,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:49,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:49,750 INFO L87 Difference]: Start difference. First operand 53550 states and 74186 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 23:46:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:50,152 INFO L93 Difference]: Finished difference Result 98526 states and 136937 transitions. [2024-11-09 23:46:50,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 23:46:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:50,289 INFO L225 Difference]: With dead ends: 98526 [2024-11-09 23:46:50,289 INFO L226 Difference]: Without dead ends: 82728 [2024-11-09 23:46:50,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:46:50,333 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 549 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:50,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1037 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82728 states. [2024-11-09 23:46:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82728 to 74798. [2024-11-09 23:46:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74798 states, 74797 states have (on average 1.3844271829084054) internal successors, (103551), 74797 states have internal predecessors, (103551), 0 states have call successors, (0), 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 23:46:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74798 states to 74798 states and 103551 transitions. [2024-11-09 23:46:51,558 INFO L78 Accepts]: Start accepts. Automaton has 74798 states and 103551 transitions. Word has length 116 [2024-11-09 23:46:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:51,559 INFO L471 AbstractCegarLoop]: Abstraction has 74798 states and 103551 transitions. [2024-11-09 23:46:51,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 23:46:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 74798 states and 103551 transitions. [2024-11-09 23:46:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:46:51,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:51,561 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:51,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:46:51,561 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:51,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:51,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2146338394, now seen corresponding path program 1 times [2024-11-09 23:46:51,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:51,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746791079] [2024-11-09 23:46:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 23:46:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746791079] [2024-11-09 23:46:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746791079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:51,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:51,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:46:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125287452] [2024-11-09 23:46:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:51,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:46:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:51,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:46:51,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:51,733 INFO L87 Difference]: Start difference. First operand 74798 states and 103551 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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 23:46:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:52,453 INFO L93 Difference]: Finished difference Result 104842 states and 145733 transitions. [2024-11-09 23:46:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:52,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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 116 [2024-11-09 23:46:52,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:52,562 INFO L225 Difference]: With dead ends: 104842 [2024-11-09 23:46:52,563 INFO L226 Difference]: Without dead ends: 89032 [2024-11-09 23:46:52,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:46:52,587 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 559 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:52,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1065 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:46:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89032 states. [2024-11-09 23:46:53,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89032 to 85866. [2024-11-09 23:46:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85866 states, 85865 states have (on average 1.3859081115704885) internal successors, (119001), 85865 states have internal predecessors, (119001), 0 states have call successors, (0), 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 23:46:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85866 states to 85866 states and 119001 transitions. [2024-11-09 23:46:53,928 INFO L78 Accepts]: Start accepts. Automaton has 85866 states and 119001 transitions. Word has length 116 [2024-11-09 23:46:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:53,929 INFO L471 AbstractCegarLoop]: Abstraction has 85866 states and 119001 transitions. [2024-11-09 23:46:53,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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 23:46:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 85866 states and 119001 transitions. [2024-11-09 23:46:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 23:46:53,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:53,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:53,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:46:53,933 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:53,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:53,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1545411919, now seen corresponding path program 1 times [2024-11-09 23:46:53,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:53,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182364946] [2024-11-09 23:46:53,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:53,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:54,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:46:54,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:54,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182364946] [2024-11-09 23:46:54,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182364946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:54,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:54,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:54,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630113690] [2024-11-09 23:46:54,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:54,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:54,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:54,114 INFO L87 Difference]: Start difference. First operand 85866 states and 119001 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:54,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:54,604 INFO L93 Difference]: Finished difference Result 159354 states and 221057 transitions. [2024-11-09 23:46:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:54,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-09 23:46:54,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:54,743 INFO L225 Difference]: With dead ends: 159354 [2024-11-09 23:46:54,744 INFO L226 Difference]: Without dead ends: 73581 [2024-11-09 23:46:54,821 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 23:46:54,821 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 89 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:54,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 504 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73581 states. [2024-11-09 23:46:55,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73581 to 73381. [2024-11-09 23:46:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73381 states, 73380 states have (on average 1.3810029980921232) internal successors, (101338), 73380 states have internal predecessors, (101338), 0 states have call successors, (0), 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 23:46:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73381 states to 73381 states and 101338 transitions. [2024-11-09 23:46:55,911 INFO L78 Accepts]: Start accepts. Automaton has 73381 states and 101338 transitions. Word has length 118 [2024-11-09 23:46:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:55,911 INFO L471 AbstractCegarLoop]: Abstraction has 73381 states and 101338 transitions. [2024-11-09 23:46:55,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 73381 states and 101338 transitions. [2024-11-09 23:46:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 23:46:55,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:55,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:55,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:46:55,914 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:55,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:55,914 INFO L85 PathProgramCache]: Analyzing trace with hash -776089371, now seen corresponding path program 1 times [2024-11-09 23:46:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:55,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958490863] [2024-11-09 23:46:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:55,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:46:56,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:56,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958490863] [2024-11-09 23:46:56,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958490863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:56,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:56,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:56,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776177355] [2024-11-09 23:46:56,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:56,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:56,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:56,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:56,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:56,051 INFO L87 Difference]: Start difference. First operand 73381 states and 101338 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:56,698 INFO L93 Difference]: Finished difference Result 104587 states and 144516 transitions. [2024-11-09 23:46:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:56,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-09 23:46:56,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:56,793 INFO L225 Difference]: With dead ends: 104587 [2024-11-09 23:46:56,794 INFO L226 Difference]: Without dead ends: 31300 [2024-11-09 23:46:56,815 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 23:46:56,816 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 75 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:56,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 461 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:56,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31300 states. [2024-11-09 23:46:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31300 to 31228. [2024-11-09 23:46:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31228 states, 31227 states have (on average 1.376084798411631) internal successors, (42971), 31227 states have internal predecessors, (42971), 0 states have call successors, (0), 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 23:46:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31228 states to 31228 states and 42971 transitions. [2024-11-09 23:46:57,152 INFO L78 Accepts]: Start accepts. Automaton has 31228 states and 42971 transitions. Word has length 118 [2024-11-09 23:46:57,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:57,152 INFO L471 AbstractCegarLoop]: Abstraction has 31228 states and 42971 transitions. [2024-11-09 23:46:57,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 31228 states and 42971 transitions. [2024-11-09 23:46:57,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 23:46:57,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:57,154 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:46:57,154 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:57,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 759088655, now seen corresponding path program 1 times [2024-11-09 23:46:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681373166] [2024-11-09 23:46:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:46:57,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:57,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681373166] [2024-11-09 23:46:57,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681373166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:57,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:57,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:46:57,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048416289] [2024-11-09 23:46:57,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:57,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:46:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:46:57,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:46:57,285 INFO L87 Difference]: Start difference. First operand 31228 states and 42971 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:57,397 INFO L93 Difference]: Finished difference Result 47062 states and 64766 transitions. [2024-11-09 23:46:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:46:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-09 23:46:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:57,418 INFO L225 Difference]: With dead ends: 47062 [2024-11-09 23:46:57,418 INFO L226 Difference]: Without dead ends: 15928 [2024-11-09 23:46:57,440 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 23:46:57,441 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 61 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:57,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 418 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15928 states. [2024-11-09 23:46:57,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15928 to 14992. [2024-11-09 23:46:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14992 states, 14991 states have (on average 1.3840304182509506) internal successors, (20748), 14991 states have internal predecessors, (20748), 0 states have call successors, (0), 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 23:46:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14992 states to 14992 states and 20748 transitions. [2024-11-09 23:46:57,941 INFO L78 Accepts]: Start accepts. Automaton has 14992 states and 20748 transitions. Word has length 118 [2024-11-09 23:46:57,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:57,949 INFO L471 AbstractCegarLoop]: Abstraction has 14992 states and 20748 transitions. [2024-11-09 23:46:57,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:46:57,950 INFO L276 IsEmpty]: Start isEmpty. Operand 14992 states and 20748 transitions. [2024-11-09 23:46:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 23:46:57,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:57,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:57,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:46:57,951 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:57,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:57,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2005367639, now seen corresponding path program 1 times [2024-11-09 23:46:57,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:57,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454825061] [2024-11-09 23:46:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 23:46:58,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454825061] [2024-11-09 23:46:58,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454825061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:58,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:58,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:46:58,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859969522] [2024-11-09 23:46:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:58,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:46:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:58,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:46:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:46:58,281 INFO L87 Difference]: Start difference. First operand 14992 states and 20748 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 23:46:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:58,403 INFO L93 Difference]: Finished difference Result 38904 states and 53750 transitions. [2024-11-09 23:46:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:58,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-09 23:46:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:58,446 INFO L225 Difference]: With dead ends: 38904 [2024-11-09 23:46:58,447 INFO L226 Difference]: Without dead ends: 29090 [2024-11-09 23:46:58,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:58,464 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 394 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:58,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 668 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:58,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29090 states. [2024-11-09 23:46:58,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29090 to 24402. [2024-11-09 23:46:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24402 states, 24401 states have (on average 1.3814187943117084) internal successors, (33708), 24401 states have internal predecessors, (33708), 0 states have call successors, (0), 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 23:46:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24402 states to 24402 states and 33708 transitions. [2024-11-09 23:46:58,750 INFO L78 Accepts]: Start accepts. Automaton has 24402 states and 33708 transitions. Word has length 119 [2024-11-09 23:46:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:46:58,750 INFO L471 AbstractCegarLoop]: Abstraction has 24402 states and 33708 transitions. [2024-11-09 23:46:58,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 23:46:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 24402 states and 33708 transitions. [2024-11-09 23:46:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 23:46:58,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:46:58,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:46:58,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:46:58,752 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:46:58,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:46:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1237131610, now seen corresponding path program 1 times [2024-11-09 23:46:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:46:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215904324] [2024-11-09 23:46:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:46:58,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:46:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:46:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 23:46:59,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:46:59,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215904324] [2024-11-09 23:46:59,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215904324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:46:59,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:46:59,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:46:59,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474123134] [2024-11-09 23:46:59,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:46:59,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:46:59,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:46:59,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:46:59,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:46:59,381 INFO L87 Difference]: Start difference. First operand 24402 states and 33708 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 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 23:46:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:46:59,550 INFO L93 Difference]: Finished difference Result 61080 states and 84221 transitions. [2024-11-09 23:46:59,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:46:59,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-09 23:46:59,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:46:59,608 INFO L225 Difference]: With dead ends: 61080 [2024-11-09 23:46:59,609 INFO L226 Difference]: Without dead ends: 45528 [2024-11-09 23:46:59,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:46:59,638 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 405 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:46:59,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 659 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:46:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45528 states. [2024-11-09 23:47:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45528 to 39646. [2024-11-09 23:47:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39646 states, 39645 states have (on average 1.3807541934670198) internal successors, (54740), 39645 states have internal predecessors, (54740), 0 states have call successors, (0), 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 23:47:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39646 states to 39646 states and 54740 transitions. [2024-11-09 23:47:00,136 INFO L78 Accepts]: Start accepts. Automaton has 39646 states and 54740 transitions. Word has length 119 [2024-11-09 23:47:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:47:00,136 INFO L471 AbstractCegarLoop]: Abstraction has 39646 states and 54740 transitions. [2024-11-09 23:47:00,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 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 23:47:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 39646 states and 54740 transitions. [2024-11-09 23:47:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:47:00,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:47:00,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:47:00,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:47:00,138 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:47:00,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:47:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 99904029, now seen corresponding path program 1 times [2024-11-09 23:47:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:47:00,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802758812] [2024-11-09 23:47:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:47:00,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:47:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:47:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:47:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:47:00,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802758812] [2024-11-09 23:47:00,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802758812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:47:00,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:47:00,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:47:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796180321] [2024-11-09 23:47:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:47:00,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:47:00,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:47:00,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:47:00,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:47:00,281 INFO L87 Difference]: Start difference. First operand 39646 states and 54740 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:47:00,488 INFO L93 Difference]: Finished difference Result 64342 states and 89136 transitions. [2024-11-09 23:47:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:47:00,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-11-09 23:47:00,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:47:00,548 INFO L225 Difference]: With dead ends: 64342 [2024-11-09 23:47:00,549 INFO L226 Difference]: Without dead ends: 51849 [2024-11-09 23:47:00,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:47:00,573 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 232 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:47:00,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 812 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:47:00,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51849 states. [2024-11-09 23:47:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51849 to 48882. [2024-11-09 23:47:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48882 states, 48881 states have (on average 1.380106789959289) internal successors, (67461), 48881 states have internal predecessors, (67461), 0 states have call successors, (0), 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 23:47:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48882 states to 48882 states and 67461 transitions. [2024-11-09 23:47:01,190 INFO L78 Accepts]: Start accepts. Automaton has 48882 states and 67461 transitions. Word has length 120 [2024-11-09 23:47:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:47:01,190 INFO L471 AbstractCegarLoop]: Abstraction has 48882 states and 67461 transitions. [2024-11-09 23:47:01,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 48882 states and 67461 transitions. [2024-11-09 23:47:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:47:01,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:47:01,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:47:01,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 23:47:01,192 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:47:01,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:47:01,192 INFO L85 PathProgramCache]: Analyzing trace with hash 240452639, now seen corresponding path program 1 times [2024-11-09 23:47:01,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:47:01,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773907581] [2024-11-09 23:47:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:47:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:47:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:47:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:47:01,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:47:01,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773907581] [2024-11-09 23:47:01,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773907581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:47:01,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:47:01,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:47:01,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224350822] [2024-11-09 23:47:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:47:01,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:47:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:47:01,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:47:01,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:47:01,262 INFO L87 Difference]: Start difference. First operand 48882 states and 67461 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:47:01,502 INFO L93 Difference]: Finished difference Result 110103 states and 152096 transitions. [2024-11-09 23:47:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:47:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-11-09 23:47:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:47:01,606 INFO L225 Difference]: With dead ends: 110103 [2024-11-09 23:47:01,607 INFO L226 Difference]: Without dead ends: 85460 [2024-11-09 23:47:01,646 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 23:47:01,647 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 100 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:47:01,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 439 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:47:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85460 states. [2024-11-09 23:47:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85460 to 85326. [2024-11-09 23:47:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85326 states, 85325 states have (on average 1.3779079988280105) internal successors, (117570), 85325 states have internal predecessors, (117570), 0 states have call successors, (0), 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 23:47:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85326 states to 85326 states and 117570 transitions. [2024-11-09 23:47:02,836 INFO L78 Accepts]: Start accepts. Automaton has 85326 states and 117570 transitions. Word has length 120 [2024-11-09 23:47:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:47:02,837 INFO L471 AbstractCegarLoop]: Abstraction has 85326 states and 117570 transitions. [2024-11-09 23:47:02,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 85326 states and 117570 transitions. [2024-11-09 23:47:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:47:02,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:47:02,838 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:47:02,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 23:47:02,838 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:47:02,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:47:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash 751620049, now seen corresponding path program 1 times [2024-11-09 23:47:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:47:02,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119686548] [2024-11-09 23:47:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:47:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:47:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:47:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:47:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:47:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119686548] [2024-11-09 23:47:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119686548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:47:02,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:47:02,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:47:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178376561] [2024-11-09 23:47:02,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:47:02,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:47:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:47:02,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:47:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:47:02,919 INFO L87 Difference]: Start difference. First operand 85326 states and 117570 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:47:04,019 INFO L93 Difference]: Finished difference Result 251689 states and 346056 transitions. [2024-11-09 23:47:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:47:04,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-09 23:47:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:47:04,328 INFO L225 Difference]: With dead ends: 251689 [2024-11-09 23:47:04,329 INFO L226 Difference]: Without dead ends: 166443 [2024-11-09 23:47:04,401 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 23:47:04,402 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 145 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:47:04,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 518 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:47:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166443 states. [2024-11-09 23:47:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166443 to 166441. [2024-11-09 23:47:07,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166441 states, 166440 states have (on average 1.3650324441240087) internal successors, (227196), 166440 states have internal predecessors, (227196), 0 states have call successors, (0), 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 23:47:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166441 states to 166441 states and 227196 transitions. [2024-11-09 23:47:07,286 INFO L78 Accepts]: Start accepts. Automaton has 166441 states and 227196 transitions. Word has length 121 [2024-11-09 23:47:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:47:07,286 INFO L471 AbstractCegarLoop]: Abstraction has 166441 states and 227196 transitions. [2024-11-09 23:47:07,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 166441 states and 227196 transitions. [2024-11-09 23:47:07,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:47:07,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:47:07,287 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:47:07,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 23:47:07,288 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:47:07,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:47:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 636281430, now seen corresponding path program 1 times [2024-11-09 23:47:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:47:07,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051867817] [2024-11-09 23:47:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:47:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:47:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:47:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:47:07,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:47:07,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051867817] [2024-11-09 23:47:07,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051867817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:47:07,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:47:07,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:47:07,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223322478] [2024-11-09 23:47:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:47:07,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:47:07,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:47:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:47:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:47:07,361 INFO L87 Difference]: Start difference. First operand 166441 states and 227196 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:47:09,231 INFO L93 Difference]: Finished difference Result 490741 states and 668288 transitions. [2024-11-09 23:47:09,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:47:09,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-09 23:47:09,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:47:09,721 INFO L225 Difference]: With dead ends: 490741 [2024-11-09 23:47:09,721 INFO L226 Difference]: Without dead ends: 324461 [2024-11-09 23:47:09,794 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 23:47:09,795 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 166 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:47:09,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 555 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:47:09,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324461 states. [2024-11-09 23:47:13,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324461 to 324459. [2024-11-09 23:47:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324459 states, 324458 states have (on average 1.3515062041928385) internal successors, (438507), 324458 states have internal predecessors, (438507), 0 states have call successors, (0), 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 23:47:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324459 states to 324459 states and 438507 transitions. [2024-11-09 23:47:14,599 INFO L78 Accepts]: Start accepts. Automaton has 324459 states and 438507 transitions. Word has length 121 [2024-11-09 23:47:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:47:14,599 INFO L471 AbstractCegarLoop]: Abstraction has 324459 states and 438507 transitions. [2024-11-09 23:47:14,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 324459 states and 438507 transitions. [2024-11-09 23:47:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 23:47:14,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:47:14,601 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:47:14,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 23:47:14,601 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:47:14,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:47:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash 710173028, now seen corresponding path program 1 times [2024-11-09 23:47:14,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:47:14,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526274638] [2024-11-09 23:47:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:47:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:47:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:47:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:47:14,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:47:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526274638] [2024-11-09 23:47:14,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526274638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:47:14,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:47:14,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:47:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047380356] [2024-11-09 23:47:14,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:47:14,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:47:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:47:14,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:47:14,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:47:14,726 INFO L87 Difference]: Start difference. First operand 324459 states and 438507 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:47:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:47:16,879 INFO L93 Difference]: Finished difference Result 499401 states and 676826 transitions. [2024-11-09 23:47:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:47:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-09 23:47:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:47:17,451 INFO L225 Difference]: With dead ends: 499401 [2024-11-09 23:47:17,452 INFO L226 Difference]: Without dead ends: 358359 [2024-11-09 23:47:17,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:47:17,597 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 230 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:47:17,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 740 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:47:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358359 states. [2024-11-09 23:47:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358359 to 355564. [2024-11-09 23:47:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355564 states, 355563 states have (on average 1.350655158157626) internal successors, (480243), 355563 states have internal predecessors, (480243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)