./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.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 7539b1e5f39ef0b663906f618cec169c1b82b84e2b7e5d0166bd24e138434223 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:49:55,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:49:55,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:49:55,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:49:55,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:49:56,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:49:56,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:49:56,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:49:56,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:49:56,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:49:56,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:49:56,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:49:56,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:49:56,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:49:56,007 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:49:56,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:49:56,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:49:56,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:49:56,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:49:56,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:49:56,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:49:56,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:49:56,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:49:56,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:49:56,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:49:56,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:49:56,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:49:56,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:49:56,017 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:49:56,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:49:56,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:49:56,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:49:56,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:49:56,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:49:56,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:49:56,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:49:56,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:49:56,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:49:56,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:49:56,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:49:56,019 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:49:56,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:49:56,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7539b1e5f39ef0b663906f618cec169c1b82b84e2b7e5d0166bd24e138434223 [2024-11-16 08:49:56,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:49:56,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:49:56,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:49:56,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:49:56,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:49:56,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:49:57,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:49:57,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:49:57,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:49:57,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdcc1816/549581600fc740a48e9b6265ce901e09/FLAGaa390bb1b [2024-11-16 08:49:57,849 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdcc1816/549581600fc740a48e9b6265ce901e09 [2024-11-16 08:49:57,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:49:57,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:49:57,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:49:57,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:49:57,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:49:57,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:49:57" (1/1) ... [2024-11-16 08:49:57,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2235c5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:57, skipping insertion in model container [2024-11-16 08:49:57,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:49:57" (1/1) ... [2024-11-16 08:49:57,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:49:58,317 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_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[23233,23246] [2024-11-16 08:49:58,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:49:58,475 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:49:58,547 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_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[23233,23246] [2024-11-16 08:49:58,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:49:58,628 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:49:58,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58 WrapperNode [2024-11-16 08:49:58,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:49:58,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:49:58,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:49:58,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:49:58,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,763 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2996 [2024-11-16 08:49:58,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:49:58,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:49:58,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:49:58,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:49:58,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,826 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:49:58,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,863 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:49:58,907 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:49:58,907 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:49:58,907 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:49:58,908 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (1/1) ... [2024-11-16 08:49:58,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:49:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:49:58,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:49:58,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:49:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:49:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:49:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:49:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:49:59,144 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:49:59,146 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:50:00,809 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2222: havoc main_~node1____CPAchecker_TMP_3~0#1;havoc main_~node1____CPAchecker_TMP_2~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:50:00,809 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L915: havoc main_~node2__newmax~0#1; [2024-11-16 08:50:00,809 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1068: havoc main_~node5__newmax~0#1; [2024-11-16 08:50:00,809 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1208: 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; [2024-11-16 08:50:00,809 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1607: havoc main_~node4____CPAchecker_TMP_3~0#1;havoc main_~node4____CPAchecker_TMP_2~0#1;havoc main_~node4____CPAchecker_TMP_1~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2017: havoc main_~node2____CPAchecker_TMP_3~0#1;havoc main_~node2____CPAchecker_TMP_2~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L966: havoc main_~node3__newmax~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L864: havoc main_~node1__newmax~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r151~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r251~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r351~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r451~0#1, main_~init__r511~0#1, main_~init__r521~0#1, main_~init__r531~0#1, main_~init__r541~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r152~0#1, main_~init__tmp___2~0#1, main_~init__r212~0#1, main_~init__tmp___3~0#1, main_~init__r232~0#1, main_~init__tmp___4~0#1, main_~init__r242~0#1, main_~init__tmp___5~0#1, main_~init__r252~0#1, main_~init__tmp___6~0#1, main_~init__r312~0#1, main_~init__tmp___7~0#1, main_~init__r322~0#1, main_~init__tmp___8~0#1, main_~init__r342~0#1, main_~init__tmp___9~0#1, main_~init__r352~0#1, main_~init__tmp___10~0#1, main_~init__r412~0#1, main_~init__tmp___11~0#1, main_~init__r422~0#1, main_~init__tmp___12~0#1, main_~init__r432~0#1, main_~init__tmp___13~0#1, main_~init__r452~0#1, main_~init__tmp___14~0#1, main_~init__r512~0#1, main_~init__tmp___15~0#1, main_~init__r522~0#1, main_~init__tmp___16~0#1, main_~init__r532~0#1, main_~init__tmp___17~0#1, main_~init__r542~0#1, main_~init__tmp___18~0#1, main_~init__r123~0#1, main_~init__tmp___19~0#1, main_~init__r133~0#1, main_~init__tmp___20~0#1, main_~init__r143~0#1, main_~init__tmp___21~0#1, main_~init__r153~0#1, main_~init__tmp___22~0#1, main_~init__r213~0#1, main_~init__tmp___23~0#1, main_~init__r233~0#1, main_~init__tmp___24~0#1, main_~init__r243~0#1, main_~init__tmp___25~0#1, main_~init__r253~0#1, main_~init__tmp___26~0#1, main_~init__r313~0#1, main_~init__tmp___27~0#1, main_~init__r323~0#1, main_~init__tmp___28~0#1, main_~init__r343~0#1, main_~init__tmp___29~0#1, main_~init__r353~0#1, main_~init__tmp___30~0#1, main_~init__r413~0#1, main_~init__tmp___31~0#1, main_~init__r423~0#1, main_~init__tmp___32~0#1, main_~init__r433~0#1, main_~init__tmp___33~0#1, main_~init__r453~0#1, main_~init__tmp___34~0#1, main_~init__r513~0#1, main_~init__tmp___35~0#1, main_~init__r523~0#1, main_~init__tmp___36~0#1, main_~init__r533~0#1, main_~init__tmp___37~0#1, main_~init__r543~0#1, main_~init__tmp___38~0#1, main_~init__r124~0#1, main_~init__tmp___39~0#1, main_~init__r134~0#1, main_~init__tmp___40~0#1, main_~init__r144~0#1, main_~init__tmp___41~0#1, main_~init__r154~0#1, main_~init__tmp___42~0#1, main_~init__r214~0#1, main_~init__tmp___43~0#1, main_~init__r234~0#1, main_~init__tmp___44~0#1, main_~init__r244~0#1, main_~init__tmp___45~0#1, main_~init__r254~0#1, main_~init__tmp___46~0#1, main_~init__r314~0#1, main_~init__tmp___47~0#1, main_~init__r324~0#1, main_~init__tmp___48~0#1, main_~init__r344~0#1, main_~init__tmp___49~0#1, main_~init__r354~0#1, main_~init__tmp___50~0#1, main_~init__r414~0#1, main_~init__tmp___51~0#1, main_~init__r424~0#1, main_~init__tmp___52~0#1, main_~init__r434~0#1, main_~init__tmp___53~0#1, main_~init__r454~0#1, main_~init__tmp___54~0#1, main_~init__r514~0#1, main_~init__tmp___55~0#1, main_~init__r524~0#1, main_~init__tmp___56~0#1, main_~init__r534~0#1, main_~init__tmp___57~0#1, main_~init__r544~0#1, main_~init__tmp___58~0#1, main_~init__tmp___59~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1402: havoc main_~node5____CPAchecker_TMP_3~0#1;havoc main_~node5____CPAchecker_TMP_2~0#1;havoc main_~node5____CPAchecker_TMP_1~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017: havoc main_~node4__newmax~0#1; [2024-11-16 08:50:00,810 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1812: havoc main_~node3____CPAchecker_TMP_3~0#1;havoc main_~node3____CPAchecker_TMP_2~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:50:01,378 INFO L? ?]: Removed 257 outVars from TransFormulas that were not future-live. [2024-11-16 08:50:01,378 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:50:01,412 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:50:01,412 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:50:01,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:50:01 BoogieIcfgContainer [2024-11-16 08:50:01,413 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:50:01,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:50:01,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:50:01,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:50:01,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:49:57" (1/3) ... [2024-11-16 08:50:01,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10744c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:50:01, skipping insertion in model container [2024-11-16 08:50:01,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:49:58" (2/3) ... [2024-11-16 08:50:01,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10744c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:50:01, skipping insertion in model container [2024-11-16 08:50:01,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:50:01" (3/3) ... [2024-11-16 08:50:01,427 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:50:01,457 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:50:01,457 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:50:01,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:50:01,551 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;@4b20d606, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:50:01,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:50:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 992 states have (on average 1.6481854838709677) internal successors, (1635), 993 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:01,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-16 08:50:01,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:01,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:01,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:01,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash 126696078, now seen corresponding path program 1 times [2024-11-16 08:50:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:01,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985959458] [2024-11-16 08:50:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:01,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:02,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:02,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985959458] [2024-11-16 08:50:02,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985959458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:02,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:02,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:02,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526644460] [2024-11-16 08:50:02,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:02,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:02,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:02,422 INFO L87 Difference]: Start difference. First operand has 994 states, 992 states have (on average 1.6481854838709677) internal successors, (1635), 993 states have internal predecessors, (1635), 0 states have call successors, (0), 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 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:02,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:02,586 INFO L93 Difference]: Finished difference Result 1507 states and 2446 transitions. [2024-11-16 08:50:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:02,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-16 08:50:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:02,609 INFO L225 Difference]: With dead ends: 1507 [2024-11-16 08:50:02,610 INFO L226 Difference]: Without dead ends: 1235 [2024-11-16 08:50:02,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:02,620 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 431 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:02,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 3156 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-11-16 08:50:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2024-11-16 08:50:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1232 states have (on average 1.5787337662337662) internal successors, (1945), 1232 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1945 transitions. [2024-11-16 08:50:02,708 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1945 transitions. Word has length 214 [2024-11-16 08:50:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:02,709 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1945 transitions. [2024-11-16 08:50:02,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1945 transitions. [2024-11-16 08:50:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-16 08:50:02,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:02,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:02,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:50:02,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:02,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1159763800, now seen corresponding path program 1 times [2024-11-16 08:50:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:02,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028664378] [2024-11-16 08:50:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:02,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:03,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028664378] [2024-11-16 08:50:03,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028664378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:03,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:03,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:03,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141758151] [2024-11-16 08:50:03,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:03,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,042 INFO L87 Difference]: Start difference. First operand 1233 states and 1945 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:03,088 INFO L93 Difference]: Finished difference Result 2213 states and 3489 transitions. [2024-11-16 08:50:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:03,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2024-11-16 08:50:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:03,098 INFO L225 Difference]: With dead ends: 2213 [2024-11-16 08:50:03,099 INFO L226 Difference]: Without dead ends: 1708 [2024-11-16 08:50:03,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,104 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 375 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3069 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 [2024-11-16 08:50:03,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 3069 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2024-11-16 08:50:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1706. [2024-11-16 08:50:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1705 states have (on average 1.5771260997067449) internal successors, (2689), 1705 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2689 transitions. [2024-11-16 08:50:03,142 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2689 transitions. Word has length 221 [2024-11-16 08:50:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:03,144 INFO L471 AbstractCegarLoop]: Abstraction has 1706 states and 2689 transitions. [2024-11-16 08:50:03,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2689 transitions. [2024-11-16 08:50:03,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 08:50:03,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:03,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:03,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:50:03,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:03,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 268150263, now seen corresponding path program 1 times [2024-11-16 08:50:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975372273] [2024-11-16 08:50:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:03,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:03,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975372273] [2024-11-16 08:50:03,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975372273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:03,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:03,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:03,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331057794] [2024-11-16 08:50:03,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:03,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:03,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:03,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:03,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,460 INFO L87 Difference]: Start difference. First operand 1706 states and 2689 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:03,514 INFO L93 Difference]: Finished difference Result 3602 states and 5671 transitions. [2024-11-16 08:50:03,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:03,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-11-16 08:50:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:03,525 INFO L225 Difference]: With dead ends: 3602 [2024-11-16 08:50:03,525 INFO L226 Difference]: Without dead ends: 2624 [2024-11-16 08:50:03,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,532 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 364 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 3070 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 [2024-11-16 08:50:03,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 3070 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-16 08:50:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2622. [2024-11-16 08:50:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2621 states have (on average 1.5738267836703548) internal successors, (4125), 2621 states have internal predecessors, (4125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 4125 transitions. [2024-11-16 08:50:03,587 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 4125 transitions. Word has length 228 [2024-11-16 08:50:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:03,588 INFO L471 AbstractCegarLoop]: Abstraction has 2622 states and 4125 transitions. [2024-11-16 08:50:03,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 4125 transitions. [2024-11-16 08:50:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-16 08:50:03,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:03,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:03,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:50:03,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:03,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash 788919713, now seen corresponding path program 1 times [2024-11-16 08:50:03,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:03,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521757298] [2024-11-16 08:50:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:03,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521757298] [2024-11-16 08:50:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521757298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:03,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:03,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509602690] [2024-11-16 08:50:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:03,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:03,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,858 INFO L87 Difference]: Start difference. First operand 2622 states and 4125 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:03,916 INFO L93 Difference]: Finished difference Result 6290 states and 9879 transitions. [2024-11-16 08:50:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 235 [2024-11-16 08:50:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:03,930 INFO L225 Difference]: With dead ends: 6290 [2024-11-16 08:50:03,930 INFO L226 Difference]: Without dead ends: 4396 [2024-11-16 08:50:03,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:03,938 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 353 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3071 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 [2024-11-16 08:50:03,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 3071 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2024-11-16 08:50:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4394. [2024-11-16 08:50:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4393 states have (on average 1.5690871841566127) internal successors, (6893), 4393 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 6893 transitions. [2024-11-16 08:50:04,019 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 6893 transitions. Word has length 235 [2024-11-16 08:50:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:04,020 INFO L471 AbstractCegarLoop]: Abstraction has 4394 states and 6893 transitions. [2024-11-16 08:50:04,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 6893 transitions. [2024-11-16 08:50:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-16 08:50:04,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:04,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:04,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:50:04,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:04,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash -530919840, now seen corresponding path program 1 times [2024-11-16 08:50:04,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:04,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165251166] [2024-11-16 08:50:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:04,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:04,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165251166] [2024-11-16 08:50:04,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165251166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:04,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:04,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:04,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137986387] [2024-11-16 08:50:04,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:04,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:04,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:04,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:04,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:04,236 INFO L87 Difference]: Start difference. First operand 4394 states and 6893 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:04,330 INFO L93 Difference]: Finished difference Result 11486 states and 17983 transitions. [2024-11-16 08:50:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:04,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2024-11-16 08:50:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:04,352 INFO L225 Difference]: With dead ends: 11486 [2024-11-16 08:50:04,353 INFO L226 Difference]: Without dead ends: 7820 [2024-11-16 08:50:04,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:04,362 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 342 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 3072 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 [2024-11-16 08:50:04,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 3072 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2024-11-16 08:50:04,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 7818. [2024-11-16 08:50:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7818 states, 7817 states have (on average 1.5633874888064474) internal successors, (12221), 7817 states have internal predecessors, (12221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7818 states to 7818 states and 12221 transitions. [2024-11-16 08:50:04,492 INFO L78 Accepts]: Start accepts. Automaton has 7818 states and 12221 transitions. Word has length 242 [2024-11-16 08:50:04,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:04,492 INFO L471 AbstractCegarLoop]: Abstraction has 7818 states and 12221 transitions. [2024-11-16 08:50:04,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7818 states and 12221 transitions. [2024-11-16 08:50:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-16 08:50:04,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:04,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:04,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:50:04,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:04,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash -581179158, now seen corresponding path program 1 times [2024-11-16 08:50:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:04,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051299160] [2024-11-16 08:50:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051299160] [2024-11-16 08:50:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051299160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:04,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:04,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:50:04,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253483279] [2024-11-16 08:50:04,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:04,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:50:04,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:50:04,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:04,897 INFO L87 Difference]: Start difference. First operand 7818 states and 12221 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:05,534 INFO L93 Difference]: Finished difference Result 47614 states and 74775 transitions. [2024-11-16 08:50:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:50:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2024-11-16 08:50:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:05,620 INFO L225 Difference]: With dead ends: 47614 [2024-11-16 08:50:05,621 INFO L226 Difference]: Without dead ends: 40524 [2024-11-16 08:50:05,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:50:05,640 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 5003 mSDsluCounter, 14359 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 15933 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:05,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 15933 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:50:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40524 states. [2024-11-16 08:50:06,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40524 to 14573. [2024-11-16 08:50:06,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14573 states, 14572 states have (on average 1.5648503980236068) internal successors, (22803), 14572 states have internal predecessors, (22803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14573 states to 14573 states and 22803 transitions. [2024-11-16 08:50:06,221 INFO L78 Accepts]: Start accepts. Automaton has 14573 states and 22803 transitions. Word has length 249 [2024-11-16 08:50:06,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:06,221 INFO L471 AbstractCegarLoop]: Abstraction has 14573 states and 22803 transitions. [2024-11-16 08:50:06,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 14573 states and 22803 transitions. [2024-11-16 08:50:06,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:06,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:06,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:06,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:50:06,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:06,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1448019764, now seen corresponding path program 1 times [2024-11-16 08:50:06,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:06,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122371334] [2024-11-16 08:50:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:06,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:06,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:06,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122371334] [2024-11-16 08:50:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122371334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:06,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198073907] [2024-11-16 08:50:06,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:06,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:06,384 INFO L87 Difference]: Start difference. First operand 14573 states and 22803 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:06,557 INFO L93 Difference]: Finished difference Result 27892 states and 43705 transitions. [2024-11-16 08:50:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:06,593 INFO L225 Difference]: With dead ends: 27892 [2024-11-16 08:50:06,594 INFO L226 Difference]: Without dead ends: 20530 [2024-11-16 08:50:06,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:06,607 INFO L432 NwaCegarLoop]: 1896 mSDtfsCounter, 387 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:06,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 3398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20530 states. [2024-11-16 08:50:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20530 to 20528. [2024-11-16 08:50:06,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20528 states, 20527 states have (on average 1.5631119988308082) internal successors, (32086), 20527 states have internal predecessors, (32086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20528 states to 20528 states and 32086 transitions. [2024-11-16 08:50:06,894 INFO L78 Accepts]: Start accepts. Automaton has 20528 states and 32086 transitions. Word has length 251 [2024-11-16 08:50:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:06,894 INFO L471 AbstractCegarLoop]: Abstraction has 20528 states and 32086 transitions. [2024-11-16 08:50:06,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 20528 states and 32086 transitions. [2024-11-16 08:50:06,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:06,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:06,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:06,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:50:06,901 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:06,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash 695221120, now seen corresponding path program 1 times [2024-11-16 08:50:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132021648] [2024-11-16 08:50:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:06,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:07,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132021648] [2024-11-16 08:50:07,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132021648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:07,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:07,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:07,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025420908] [2024-11-16 08:50:07,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:07,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:07,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:07,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:07,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:07,056 INFO L87 Difference]: Start difference. First operand 20528 states and 32086 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:07,281 INFO L93 Difference]: Finished difference Result 39139 states and 61176 transitions. [2024-11-16 08:50:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:07,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:07,328 INFO L225 Difference]: With dead ends: 39139 [2024-11-16 08:50:07,328 INFO L226 Difference]: Without dead ends: 28793 [2024-11-16 08:50:07,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:07,347 INFO L432 NwaCegarLoop]: 1857 mSDtfsCounter, 376 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:07,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 3360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28793 states. [2024-11-16 08:50:07,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28793 to 28791. [2024-11-16 08:50:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28791 states, 28790 states have (on average 1.5596040291767974) internal successors, (44901), 28790 states have internal predecessors, (44901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28791 states to 28791 states and 44901 transitions. [2024-11-16 08:50:07,807 INFO L78 Accepts]: Start accepts. Automaton has 28791 states and 44901 transitions. Word has length 251 [2024-11-16 08:50:07,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:07,807 INFO L471 AbstractCegarLoop]: Abstraction has 28791 states and 44901 transitions. [2024-11-16 08:50:07,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:07,808 INFO L276 IsEmpty]: Start isEmpty. Operand 28791 states and 44901 transitions. [2024-11-16 08:50:07,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:07,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:07,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:07,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:50:07,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:07,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash -92521510, now seen corresponding path program 1 times [2024-11-16 08:50:07,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:07,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662774707] [2024-11-16 08:50:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:07,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:08,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:08,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662774707] [2024-11-16 08:50:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662774707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:08,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:08,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:08,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562943465] [2024-11-16 08:50:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:08,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:08,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:08,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:08,105 INFO L87 Difference]: Start difference. First operand 28791 states and 44901 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:08,668 INFO L93 Difference]: Finished difference Result 93712 states and 146322 transitions. [2024-11-16 08:50:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:08,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:08,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:08,791 INFO L225 Difference]: With dead ends: 93712 [2024-11-16 08:50:08,792 INFO L226 Difference]: Without dead ends: 65683 [2024-11-16 08:50:08,826 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 [2024-11-16 08:50:08,828 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1200 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 5018 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 [2024-11-16 08:50:08,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 5018 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65683 states. [2024-11-16 08:50:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65683 to 47188. [2024-11-16 08:50:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47188 states, 47187 states have (on average 1.5581410134147118) internal successors, (73524), 47187 states have internal predecessors, (73524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47188 states to 47188 states and 73524 transitions. [2024-11-16 08:50:09,486 INFO L78 Accepts]: Start accepts. Automaton has 47188 states and 73524 transitions. Word has length 251 [2024-11-16 08:50:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:09,487 INFO L471 AbstractCegarLoop]: Abstraction has 47188 states and 73524 transitions. [2024-11-16 08:50:09,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 47188 states and 73524 transitions. [2024-11-16 08:50:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:09,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:09,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:09,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:50:09,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:09,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1608062516, now seen corresponding path program 1 times [2024-11-16 08:50:09,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:09,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145465559] [2024-11-16 08:50:09,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:09,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:09,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:09,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145465559] [2024-11-16 08:50:09,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145465559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:09,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:09,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:09,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18970497] [2024-11-16 08:50:09,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:09,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:09,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:09,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:09,675 INFO L87 Difference]: Start difference. First operand 47188 states and 73524 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:10,152 INFO L93 Difference]: Finished difference Result 90893 states and 141622 transitions. [2024-11-16 08:50:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:10,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:10,257 INFO L225 Difference]: With dead ends: 90893 [2024-11-16 08:50:10,258 INFO L226 Difference]: Without dead ends: 66515 [2024-11-16 08:50:10,426 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 [2024-11-16 08:50:10,430 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 343 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:10,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 3170 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:50:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66515 states. [2024-11-16 08:50:10,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66515 to 66513. [2024-11-16 08:50:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66513 states, 66512 states have (on average 1.554080466682704) internal successors, (103365), 66512 states have internal predecessors, (103365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66513 states to 66513 states and 103365 transitions. [2024-11-16 08:50:11,391 INFO L78 Accepts]: Start accepts. Automaton has 66513 states and 103365 transitions. Word has length 251 [2024-11-16 08:50:11,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:11,392 INFO L471 AbstractCegarLoop]: Abstraction has 66513 states and 103365 transitions. [2024-11-16 08:50:11,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 66513 states and 103365 transitions. [2024-11-16 08:50:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:11,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:11,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:11,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:50:11,399 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:11,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1050817536, now seen corresponding path program 1 times [2024-11-16 08:50:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129169843] [2024-11-16 08:50:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:11,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129169843] [2024-11-16 08:50:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129169843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:11,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489206696] [2024-11-16 08:50:11,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:11,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:11,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:11,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:11,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:11,707 INFO L87 Difference]: Start difference. First operand 66513 states and 103365 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:12,187 INFO L93 Difference]: Finished difference Result 127345 states and 197891 transitions. [2024-11-16 08:50:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:12,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:12,331 INFO L225 Difference]: With dead ends: 127345 [2024-11-16 08:50:12,331 INFO L226 Difference]: Without dead ends: 92915 [2024-11-16 08:50:12,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:12,387 INFO L432 NwaCegarLoop]: 1737 mSDtfsCounter, 354 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:12,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3242 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:12,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92915 states. [2024-11-16 08:50:13,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92915 to 92913. [2024-11-16 08:50:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92913 states, 92912 states have (on average 1.5495307387635613) internal successors, (143970), 92912 states have internal predecessors, (143970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92913 states to 92913 states and 143970 transitions. [2024-11-16 08:50:13,726 INFO L78 Accepts]: Start accepts. Automaton has 92913 states and 143970 transitions. Word has length 251 [2024-11-16 08:50:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:13,726 INFO L471 AbstractCegarLoop]: Abstraction has 92913 states and 143970 transitions. [2024-11-16 08:50:13,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 92913 states and 143970 transitions. [2024-11-16 08:50:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 08:50:13,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:13,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:13,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:50:13,729 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:13,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:13,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1182482764, now seen corresponding path program 1 times [2024-11-16 08:50:13,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:13,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031241545] [2024-11-16 08:50:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:13,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031241545] [2024-11-16 08:50:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031241545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:13,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:13,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:50:13,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126248521] [2024-11-16 08:50:13,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:13,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:50:13,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:13,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:50:13,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:13,882 INFO L87 Difference]: Start difference. First operand 92913 states and 143970 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:14,666 INFO L93 Difference]: Finished difference Result 177589 states and 275138 transitions. [2024-11-16 08:50:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:50:14,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2024-11-16 08:50:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:14,863 INFO L225 Difference]: With dead ends: 177589 [2024-11-16 08:50:14,864 INFO L226 Difference]: Without dead ends: 129229 [2024-11-16 08:50:14,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:50:14,918 INFO L432 NwaCegarLoop]: 1810 mSDtfsCounter, 365 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:14,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 3314 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:15,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129229 states. [2024-11-16 08:50:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129229 to 129227. [2024-11-16 08:50:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129227 states, 129226 states have (on average 1.5443718756287435) internal successors, (199573), 129226 states have internal predecessors, (199573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129227 states to 129227 states and 199573 transitions. [2024-11-16 08:50:16,743 INFO L78 Accepts]: Start accepts. Automaton has 129227 states and 199573 transitions. Word has length 251 [2024-11-16 08:50:16,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:16,744 INFO L471 AbstractCegarLoop]: Abstraction has 129227 states and 199573 transitions. [2024-11-16 08:50:16,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 129227 states and 199573 transitions. [2024-11-16 08:50:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-16 08:50:16,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:16,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:16,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:50:16,746 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:16,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash -807437874, now seen corresponding path program 1 times [2024-11-16 08:50:16,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:16,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576072625] [2024-11-16 08:50:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576072625] [2024-11-16 08:50:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576072625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:16,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:16,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481571728] [2024-11-16 08:50:16,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:16,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:16,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:16,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:16,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:16,940 INFO L87 Difference]: Start difference. First operand 129227 states and 199573 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:18,771 INFO L93 Difference]: Finished difference Result 424919 states and 656477 transitions. [2024-11-16 08:50:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-11-16 08:50:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:19,275 INFO L225 Difference]: With dead ends: 424919 [2024-11-16 08:50:19,275 INFO L226 Difference]: Without dead ends: 296547 [2024-11-16 08:50:19,351 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 [2024-11-16 08:50:19,352 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1198 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 5020 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 [2024-11-16 08:50:19,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 5020 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296547 states. [2024-11-16 08:50:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296547 to 212618. [2024-11-16 08:50:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212618 states, 212617 states have (on average 1.540667020981389) internal successors, (327572), 212617 states have internal predecessors, (327572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212618 states to 212618 states and 327572 transitions. [2024-11-16 08:50:23,131 INFO L78 Accepts]: Start accepts. Automaton has 212618 states and 327572 transitions. Word has length 253 [2024-11-16 08:50:23,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:23,131 INFO L471 AbstractCegarLoop]: Abstraction has 212618 states and 327572 transitions. [2024-11-16 08:50:23,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:23,132 INFO L276 IsEmpty]: Start isEmpty. Operand 212618 states and 327572 transitions. [2024-11-16 08:50:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-16 08:50:23,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:23,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:23,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:50:23,134 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1863743926, now seen corresponding path program 1 times [2024-11-16 08:50:23,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139942446] [2024-11-16 08:50:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:23,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:23,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:23,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139942446] [2024-11-16 08:50:23,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139942446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:23,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:23,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:23,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438138040] [2024-11-16 08:50:23,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:23,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:23,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:23,324 INFO L87 Difference]: Start difference. First operand 212618 states and 327572 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:26,360 INFO L93 Difference]: Finished difference Result 698681 states and 1076855 transitions. [2024-11-16 08:50:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 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 255 [2024-11-16 08:50:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:27,234 INFO L225 Difference]: With dead ends: 698681 [2024-11-16 08:50:27,234 INFO L226 Difference]: Without dead ends: 486918 [2024-11-16 08:50:27,310 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 [2024-11-16 08:50:27,310 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1196 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 5022 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 [2024-11-16 08:50:27,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 5022 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:27,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486918 states. [2024-11-16 08:50:32,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486918 to 349325. [2024-11-16 08:50:32,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349325 states, 349324 states have (on average 1.536942780913994) internal successors, (536891), 349324 states have internal predecessors, (536891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:33,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349325 states to 349325 states and 536891 transitions. [2024-11-16 08:50:33,220 INFO L78 Accepts]: Start accepts. Automaton has 349325 states and 536891 transitions. Word has length 255 [2024-11-16 08:50:33,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:33,220 INFO L471 AbstractCegarLoop]: Abstraction has 349325 states and 536891 transitions. [2024-11-16 08:50:33,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:33,220 INFO L276 IsEmpty]: Start isEmpty. Operand 349325 states and 536891 transitions. [2024-11-16 08:50:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-16 08:50:33,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:33,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:33,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:50:33,222 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:33,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:33,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1885587634, now seen corresponding path program 1 times [2024-11-16 08:50:33,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:33,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052803883] [2024-11-16 08:50:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:33,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:50:33,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:33,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052803883] [2024-11-16 08:50:33,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052803883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:33,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:33,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748830012] [2024-11-16 08:50:33,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:33,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:33,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:33,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:33,415 INFO L87 Difference]: Start difference. First operand 349325 states and 536891 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:50:37,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:37,268 INFO L93 Difference]: Finished difference Result 1144227 states and 1759329 transitions. [2024-11-16 08:50:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:37,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2024-11-16 08:50:37,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:39,535 INFO L225 Difference]: With dead ends: 1144227 [2024-11-16 08:50:39,536 INFO L226 Difference]: Without dead ends: 795757 [2024-11-16 08:50:39,721 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 [2024-11-16 08:50:39,721 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1194 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 5024 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 [2024-11-16 08:50:39,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 5024 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795757 states.