./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-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_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f774b3e755d7b6f786f7d23823d008ce09be620750647481355094233fd1ac8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:31:56,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:31:56,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:31:56,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:31:56,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:31:56,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:31:56,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:31:56,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:31:56,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:31:56,867 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:31:56,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:31:56,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:31:56,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:31:56,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:31:56,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:31:56,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:31:56,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:31:56,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:31:56,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:31:56,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:31:56,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:31:56,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:31:56,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:31:56,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:31:56,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:31:56,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:31:56,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:31:56,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:31:56,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:31:56,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:31:56,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:31:56,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:31:56,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:31:56,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:31:56,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:31:56,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:31:56,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:31:56,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:31:56,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:31:56,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:31:56,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:31:56,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:31:56,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f774b3e755d7b6f786f7d23823d008ce09be620750647481355094233fd1ac8 [2024-11-16 08:31:57,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:31:57,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:31:57,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:31:57,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:31:57,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:31:57,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-16 08:31:58,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:31:58,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:31:58,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-16 08:31:58,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcfe28258/573db91a0c104c8ba7a359bb064ced73/FLAG326a3fee9 [2024-11-16 08:31:58,823 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcfe28258/573db91a0c104c8ba7a359bb064ced73 [2024-11-16 08:31:58,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:31:58,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:31:58,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:31:58,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:31:58,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:31:58,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:31:58" (1/1) ... [2024-11-16 08:31:58,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee9c8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:58, skipping insertion in model container [2024-11-16 08:31:58,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:31:58" (1/1) ... [2024-11-16 08:31:58,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:31:59,071 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2024-11-16 08:31:59,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:31:59,120 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:31:59,162 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2024-11-16 08:31:59,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:31:59,192 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:31:59,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59 WrapperNode [2024-11-16 08:31:59,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:31:59,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:31:59,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:31:59,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:31:59,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,236 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 626 [2024-11-16 08:31:59,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:31:59,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:31:59,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:31:59,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:31:59,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,247 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,265 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 08:31:59,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:31:59,289 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:31:59,289 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:31:59,289 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:31:59,290 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (1/1) ... [2024-11-16 08:31:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:31:59,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:31:59,322 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 08:31:59,325 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 08:31:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:31:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:31:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:31:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:31:59,450 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:31:59,452 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:31:59,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L334: havoc main_~node2__m2~2#1; [2024-11-16 08:31:59,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~node1____CPAchecker_TMP_0~2#1; [2024-11-16 08:31:59,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L352: havoc main_~node3__m3~2#1; [2024-11-16 08:31:59,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L455: havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~node1__m1~3#1;havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-16 08:31:59,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L158: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L571: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L935: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L657: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L179: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L543: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L312: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;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;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:31:59,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L891: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-16 08:31:59,874 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L629: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:31:59,901 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-16 08:31:59,902 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:31:59,917 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:31:59,918 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:31:59,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:31:59 BoogieIcfgContainer [2024-11-16 08:31:59,918 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:31:59,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:31:59,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:31:59,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:31:59,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:31:58" (1/3) ... [2024-11-16 08:31:59,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3444ef89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:31:59, skipping insertion in model container [2024-11-16 08:31:59,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:59" (2/3) ... [2024-11-16 08:31:59,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3444ef89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:31:59, skipping insertion in model container [2024-11-16 08:31:59,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:31:59" (3/3) ... [2024-11-16 08:31:59,925 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-16 08:31:59,937 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:31:59,937 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:31:59,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:31:59,994 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;@656fd8da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:31:59,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:31:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 155 states have (on average 1.6709677419354838) internal successors, (259), 156 states have internal predecessors, (259), 0 states have call successors, (0), 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 08:32:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:32:00,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:00,004 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] [2024-11-16 08:32:00,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:00,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash -587854792, now seen corresponding path program 1 times [2024-11-16 08:32:00,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995144312] [2024-11-16 08:32:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:00,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:00,508 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 08:32:00,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:00,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995144312] [2024-11-16 08:32:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995144312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:00,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:00,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:00,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612077421] [2024-11-16 08:32:00,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:00,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:00,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:00,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:00,534 INFO L87 Difference]: Start difference. First operand has 157 states, 155 states have (on average 1.6709677419354838) internal successors, (259), 156 states have internal predecessors, (259), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 08:32:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:00,692 INFO L93 Difference]: Finished difference Result 502 states and 791 transitions. [2024-11-16 08:32:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:00,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-16 08:32:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:00,706 INFO L225 Difference]: With dead ends: 502 [2024-11-16 08:32:00,707 INFO L226 Difference]: Without dead ends: 423 [2024-11-16 08:32:00,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:00,712 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 866 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:00,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1192 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-16 08:32:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 248. [2024-11-16 08:32:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.45748987854251) internal successors, (360), 247 states have internal predecessors, (360), 0 states have call successors, (0), 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 08:32:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 360 transitions. [2024-11-16 08:32:00,755 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 360 transitions. Word has length 49 [2024-11-16 08:32:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:00,755 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 360 transitions. [2024-11-16 08:32:00,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 08:32:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 360 transitions. [2024-11-16 08:32:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:32:00,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:00,757 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] [2024-11-16 08:32:00,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:32:00,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:00,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:00,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1888516065, now seen corresponding path program 1 times [2024-11-16 08:32:00,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:00,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950488928] [2024-11-16 08:32:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:00,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:00,828 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 08:32:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:00,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950488928] [2024-11-16 08:32:00,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950488928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:00,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:00,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:00,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879229982] [2024-11-16 08:32:00,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:00,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:00,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:00,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:00,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:00,831 INFO L87 Difference]: Start difference. First operand 248 states and 360 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:00,868 INFO L93 Difference]: Finished difference Result 626 states and 926 transitions. [2024-11-16 08:32:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-16 08:32:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:00,871 INFO L225 Difference]: With dead ends: 626 [2024-11-16 08:32:00,872 INFO L226 Difference]: Without dead ends: 432 [2024-11-16 08:32:00,873 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 08:32:00,874 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 142 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:00,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 414 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:00,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-16 08:32:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430. [2024-11-16 08:32:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 1.4498834498834499) internal successors, (622), 429 states have internal predecessors, (622), 0 states have call successors, (0), 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 08:32:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 622 transitions. [2024-11-16 08:32:00,894 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 622 transitions. Word has length 53 [2024-11-16 08:32:00,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:00,895 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 622 transitions. [2024-11-16 08:32:00,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 622 transitions. [2024-11-16 08:32:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:32:00,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:00,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:00,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:32:00,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:00,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1079822671, now seen corresponding path program 1 times [2024-11-16 08:32:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:00,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577044] [2024-11-16 08:32:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:00,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:00,967 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 08:32:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577044] [2024-11-16 08:32:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:00,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915253055] [2024-11-16 08:32:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:00,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:00,970 INFO L87 Difference]: Start difference. First operand 430 states and 622 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:00,994 INFO L93 Difference]: Finished difference Result 1082 states and 1581 transitions. [2024-11-16 08:32:00,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:00,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-16 08:32:00,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:00,997 INFO L225 Difference]: With dead ends: 1082 [2024-11-16 08:32:00,997 INFO L226 Difference]: Without dead ends: 750 [2024-11-16 08:32:00,998 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 08:32:01,003 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 147 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:01,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 406 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:01,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-16 08:32:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 748. [2024-11-16 08:32:01,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 747 states have (on average 1.4377510040160641) internal successors, (1074), 747 states have internal predecessors, (1074), 0 states have call successors, (0), 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 08:32:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1074 transitions. [2024-11-16 08:32:01,024 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1074 transitions. Word has length 53 [2024-11-16 08:32:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:01,024 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1074 transitions. [2024-11-16 08:32:01,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1074 transitions. [2024-11-16 08:32:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:32:01,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:01,027 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] [2024-11-16 08:32:01,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:32:01,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:01,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1644797601, now seen corresponding path program 1 times [2024-11-16 08:32:01,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:01,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421629193] [2024-11-16 08:32:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:01,107 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 08:32:01,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421629193] [2024-11-16 08:32:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421629193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:01,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949071521] [2024-11-16 08:32:01,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:01,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:01,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:01,110 INFO L87 Difference]: Start difference. First operand 748 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:01,141 INFO L93 Difference]: Finished difference Result 1843 states and 2657 transitions. [2024-11-16 08:32:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-16 08:32:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:01,145 INFO L225 Difference]: With dead ends: 1843 [2024-11-16 08:32:01,145 INFO L226 Difference]: Without dead ends: 1283 [2024-11-16 08:32:01,150 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 08:32:01,151 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 134 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:01,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 406 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-11-16 08:32:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1281. [2024-11-16 08:32:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.415625) internal successors, (1812), 1280 states have internal predecessors, (1812), 0 states have call successors, (0), 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 08:32:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1812 transitions. [2024-11-16 08:32:01,172 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1812 transitions. Word has length 53 [2024-11-16 08:32:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:01,172 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1812 transitions. [2024-11-16 08:32:01,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 08:32:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1812 transitions. [2024-11-16 08:32:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 08:32:01,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:01,175 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] [2024-11-16 08:32:01,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:32:01,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:01,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 877262335, now seen corresponding path program 1 times [2024-11-16 08:32:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:01,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059743853] [2024-11-16 08:32:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:01,287 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 08:32:01,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:01,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059743853] [2024-11-16 08:32:01,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059743853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:01,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:01,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380577630] [2024-11-16 08:32:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:01,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:01,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:01,290 INFO L87 Difference]: Start difference. First operand 1281 states and 1812 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 08:32:01,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:01,369 INFO L93 Difference]: Finished difference Result 2494 states and 3593 transitions. [2024-11-16 08:32:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:01,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-16 08:32:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:01,376 INFO L225 Difference]: With dead ends: 2494 [2024-11-16 08:32:01,377 INFO L226 Difference]: Without dead ends: 2128 [2024-11-16 08:32:01,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:01,379 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 585 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:01,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 882 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2024-11-16 08:32:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1712. [2024-11-16 08:32:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1711 states have (on average 1.4219754529514903) internal successors, (2433), 1711 states have internal predecessors, (2433), 0 states have call successors, (0), 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 08:32:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2433 transitions. [2024-11-16 08:32:01,408 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2433 transitions. Word has length 54 [2024-11-16 08:32:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:01,409 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2433 transitions. [2024-11-16 08:32:01,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 08:32:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2433 transitions. [2024-11-16 08:32:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 08:32:01,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:01,411 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] [2024-11-16 08:32:01,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:32:01,411 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:01,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:01,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1176742105, now seen corresponding path program 1 times [2024-11-16 08:32:01,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512508033] [2024-11-16 08:32:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:01,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:01,491 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 08:32:01,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:01,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512508033] [2024-11-16 08:32:01,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512508033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:01,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:01,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758344238] [2024-11-16 08:32:01,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:01,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:01,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:01,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:01,492 INFO L87 Difference]: Start difference. First operand 1712 states and 2433 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 08:32:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:01,581 INFO L93 Difference]: Finished difference Result 2891 states and 4166 transitions. [2024-11-16 08:32:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:01,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-16 08:32:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:01,588 INFO L225 Difference]: With dead ends: 2891 [2024-11-16 08:32:01,588 INFO L226 Difference]: Without dead ends: 2525 [2024-11-16 08:32:01,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:01,589 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 587 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:01,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 959 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:01,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-11-16 08:32:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2045. [2024-11-16 08:32:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2044 states have (on average 1.4261252446183954) internal successors, (2915), 2044 states have internal predecessors, (2915), 0 states have call successors, (0), 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 08:32:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2915 transitions. [2024-11-16 08:32:01,618 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2915 transitions. Word has length 54 [2024-11-16 08:32:01,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:01,618 INFO L471 AbstractCegarLoop]: Abstraction has 2045 states and 2915 transitions. [2024-11-16 08:32:01,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 08:32:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2915 transitions. [2024-11-16 08:32:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:32:01,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:01,620 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] [2024-11-16 08:32:01,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:32:01,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1128253576, now seen corresponding path program 1 times [2024-11-16 08:32:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:01,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576292015] [2024-11-16 08:32:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:01,694 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 08:32:01,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:01,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576292015] [2024-11-16 08:32:01,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576292015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:01,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:01,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:01,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023951389] [2024-11-16 08:32:01,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:01,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:01,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:01,696 INFO L87 Difference]: Start difference. First operand 2045 states and 2915 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 08:32:01,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:01,758 INFO L93 Difference]: Finished difference Result 3335 states and 4806 transitions. [2024-11-16 08:32:01,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:01,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-16 08:32:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:01,765 INFO L225 Difference]: With dead ends: 3335 [2024-11-16 08:32:01,766 INFO L226 Difference]: Without dead ends: 2969 [2024-11-16 08:32:01,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:01,767 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 595 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:01,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 974 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2024-11-16 08:32:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2365. [2024-11-16 08:32:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2364 states have (on average 1.4297800338409477) internal successors, (3380), 2364 states have internal predecessors, (3380), 0 states have call successors, (0), 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 08:32:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3380 transitions. [2024-11-16 08:32:01,803 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3380 transitions. Word has length 55 [2024-11-16 08:32:01,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:01,803 INFO L471 AbstractCegarLoop]: Abstraction has 2365 states and 3380 transitions. [2024-11-16 08:32:01,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 08:32:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3380 transitions. [2024-11-16 08:32:01,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 08:32:01,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:01,805 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] [2024-11-16 08:32:01,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:32:01,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:01,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1734558532, now seen corresponding path program 1 times [2024-11-16 08:32:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:01,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496901920] [2024-11-16 08:32:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:01,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:01,909 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 08:32:01,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:01,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496901920] [2024-11-16 08:32:01,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496901920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:01,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:01,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:32:01,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623675540] [2024-11-16 08:32:01,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:01,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:01,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:01,912 INFO L87 Difference]: Start difference. First operand 2365 states and 3380 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 08:32:02,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:02,073 INFO L93 Difference]: Finished difference Result 5606 states and 8016 transitions. [2024-11-16 08:32:02,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-16 08:32:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:02,081 INFO L225 Difference]: With dead ends: 5606 [2024-11-16 08:32:02,081 INFO L226 Difference]: Without dead ends: 3283 [2024-11-16 08:32:02,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:02,086 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 833 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:02,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 220 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2024-11-16 08:32:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 3265. [2024-11-16 08:32:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3264 states have (on average 1.4191176470588236) internal successors, (4632), 3264 states have internal predecessors, (4632), 0 states have call successors, (0), 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 08:32:02,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 4632 transitions. [2024-11-16 08:32:02,130 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 4632 transitions. Word has length 59 [2024-11-16 08:32:02,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:02,130 INFO L471 AbstractCegarLoop]: Abstraction has 3265 states and 4632 transitions. [2024-11-16 08:32:02,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 08:32:02,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 4632 transitions. [2024-11-16 08:32:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 08:32:02,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:02,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:02,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:32:02,132 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:02,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -746681209, now seen corresponding path program 1 times [2024-11-16 08:32:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:02,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133229229] [2024-11-16 08:32:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:02,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:02,203 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 08:32:02,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:02,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133229229] [2024-11-16 08:32:02,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133229229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:02,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:02,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:32:02,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913953276] [2024-11-16 08:32:02,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:02,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:02,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:02,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:02,207 INFO L87 Difference]: Start difference. First operand 3265 states and 4632 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:02,358 INFO L93 Difference]: Finished difference Result 7627 states and 10794 transitions. [2024-11-16 08:32:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:02,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 08:32:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:02,368 INFO L225 Difference]: With dead ends: 7627 [2024-11-16 08:32:02,369 INFO L226 Difference]: Without dead ends: 4449 [2024-11-16 08:32:02,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:02,373 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 832 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:02,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 210 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2024-11-16 08:32:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 3265. [2024-11-16 08:32:02,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3264 states have (on average 1.4037990196078431) internal successors, (4582), 3264 states have internal predecessors, (4582), 0 states have call successors, (0), 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 08:32:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 4582 transitions. [2024-11-16 08:32:02,461 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 4582 transitions. Word has length 60 [2024-11-16 08:32:02,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:02,462 INFO L471 AbstractCegarLoop]: Abstraction has 3265 states and 4582 transitions. [2024-11-16 08:32:02,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 4582 transitions. [2024-11-16 08:32:02,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 08:32:02,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:02,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:02,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:32:02,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:02,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1629309396, now seen corresponding path program 1 times [2024-11-16 08:32:02,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:02,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602367026] [2024-11-16 08:32:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:02,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:02,542 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 08:32:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:02,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602367026] [2024-11-16 08:32:02,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602367026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:02,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:02,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:32:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858364481] [2024-11-16 08:32:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:02,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:02,544 INFO L87 Difference]: Start difference. First operand 3265 states and 4582 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:02,681 INFO L93 Difference]: Finished difference Result 7688 states and 10786 transitions. [2024-11-16 08:32:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:02,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 08:32:02,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:02,691 INFO L225 Difference]: With dead ends: 7688 [2024-11-16 08:32:02,691 INFO L226 Difference]: Without dead ends: 4501 [2024-11-16 08:32:02,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:02,696 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 773 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:02,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 221 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2024-11-16 08:32:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4476. [2024-11-16 08:32:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4475 states have (on average 1.3899441340782124) internal successors, (6220), 4475 states have internal predecessors, (6220), 0 states have call successors, (0), 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 08:32:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 6220 transitions. [2024-11-16 08:32:02,757 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 6220 transitions. Word has length 60 [2024-11-16 08:32:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:02,757 INFO L471 AbstractCegarLoop]: Abstraction has 4476 states and 6220 transitions. [2024-11-16 08:32:02,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 6220 transitions. [2024-11-16 08:32:02,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-16 08:32:02,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:02,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:02,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:32:02,760 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:02,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 658392020, now seen corresponding path program 1 times [2024-11-16 08:32:02,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:02,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884603335] [2024-11-16 08:32:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:02,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:02,871 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 08:32:02,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:02,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884603335] [2024-11-16 08:32:02,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884603335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:02,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:02,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:32:02,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303486733] [2024-11-16 08:32:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:02,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:32:02,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:02,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:32:02,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:02,873 INFO L87 Difference]: Start difference. First operand 4476 states and 6220 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 08:32:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:03,128 INFO L93 Difference]: Finished difference Result 10640 states and 14787 transitions. [2024-11-16 08:32:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:32:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-16 08:32:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:03,147 INFO L225 Difference]: With dead ends: 10640 [2024-11-16 08:32:03,147 INFO L226 Difference]: Without dead ends: 9206 [2024-11-16 08:32:03,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:32:03,152 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1390 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:03,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 387 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9206 states. [2024-11-16 08:32:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9206 to 4488. [2024-11-16 08:32:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4487 states have (on average 1.3897927345665255) internal successors, (6236), 4487 states have internal predecessors, (6236), 0 states have call successors, (0), 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 08:32:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 6236 transitions. [2024-11-16 08:32:03,231 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 6236 transitions. Word has length 61 [2024-11-16 08:32:03,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:03,232 INFO L471 AbstractCegarLoop]: Abstraction has 4488 states and 6236 transitions. [2024-11-16 08:32:03,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 08:32:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 6236 transitions. [2024-11-16 08:32:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 08:32:03,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:03,234 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] [2024-11-16 08:32:03,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:32:03,234 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:03,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash -187802499, now seen corresponding path program 1 times [2024-11-16 08:32:03,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:03,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211452361] [2024-11-16 08:32:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:03,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:03,351 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 08:32:03,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:03,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211452361] [2024-11-16 08:32:03,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211452361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:03,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:03,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:32:03,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883248644] [2024-11-16 08:32:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:03,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:32:03,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:32:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:03,353 INFO L87 Difference]: Start difference. First operand 4488 states and 6236 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 08:32:03,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:03,564 INFO L93 Difference]: Finished difference Result 10026 states and 13874 transitions. [2024-11-16 08:32:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:32:03,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-16 08:32:03,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:03,576 INFO L225 Difference]: With dead ends: 10026 [2024-11-16 08:32:03,577 INFO L226 Difference]: Without dead ends: 7688 [2024-11-16 08:32:03,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:32:03,580 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1032 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:03,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 332 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2024-11-16 08:32:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 4508. [2024-11-16 08:32:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 1.3889505214111382) internal successors, (6260), 4507 states have internal predecessors, (6260), 0 states have call successors, (0), 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 08:32:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6260 transitions. [2024-11-16 08:32:03,648 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6260 transitions. Word has length 62 [2024-11-16 08:32:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:03,648 INFO L471 AbstractCegarLoop]: Abstraction has 4508 states and 6260 transitions. [2024-11-16 08:32:03,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 08:32:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6260 transitions. [2024-11-16 08:32:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 08:32:03,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:03,650 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] [2024-11-16 08:32:03,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:32:03,650 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:03,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:03,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1416463445, now seen corresponding path program 1 times [2024-11-16 08:32:03,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:03,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365169804] [2024-11-16 08:32:03,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:03,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:03,749 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 08:32:03,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365169804] [2024-11-16 08:32:03,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365169804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:03,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:03,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:32:03,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565766934] [2024-11-16 08:32:03,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:03,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:32:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:03,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:32:03,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:03,751 INFO L87 Difference]: Start difference. First operand 4508 states and 6260 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 08:32:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:03,982 INFO L93 Difference]: Finished difference Result 11597 states and 16112 transitions. [2024-11-16 08:32:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:32:03,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-16 08:32:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:03,997 INFO L225 Difference]: With dead ends: 11597 [2024-11-16 08:32:03,997 INFO L226 Difference]: Without dead ends: 9447 [2024-11-16 08:32:04,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:32:04,001 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1217 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:04,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 369 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:04,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9447 states. [2024-11-16 08:32:04,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9447 to 4588. [2024-11-16 08:32:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 4587 states have (on average 1.3869631567473295) internal successors, (6362), 4587 states have internal predecessors, (6362), 0 states have call successors, (0), 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 08:32:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6362 transitions. [2024-11-16 08:32:04,087 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6362 transitions. Word has length 62 [2024-11-16 08:32:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:04,087 INFO L471 AbstractCegarLoop]: Abstraction has 4588 states and 6362 transitions. [2024-11-16 08:32:04,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 08:32:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6362 transitions. [2024-11-16 08:32:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:32:04,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:04,089 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] [2024-11-16 08:32:04,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:32:04,090 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:04,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash -717956229, now seen corresponding path program 1 times [2024-11-16 08:32:04,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:04,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085538428] [2024-11-16 08:32:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:04,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:04,389 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 08:32:04,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:04,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085538428] [2024-11-16 08:32:04,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085538428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:04,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:04,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:32:04,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674422284] [2024-11-16 08:32:04,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:04,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:32:04,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:04,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:32:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:32:04,392 INFO L87 Difference]: Start difference. First operand 4588 states and 6362 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:04,894 INFO L93 Difference]: Finished difference Result 10798 states and 15046 transitions. [2024-11-16 08:32:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:32:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 08:32:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:04,902 INFO L225 Difference]: With dead ends: 10798 [2024-11-16 08:32:04,902 INFO L226 Difference]: Without dead ends: 7165 [2024-11-16 08:32:04,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:32:04,907 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 955 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:04,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 896 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:32:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7165 states. [2024-11-16 08:32:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7165 to 4500. [2024-11-16 08:32:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4500 states, 4499 states have (on average 1.3845298955323406) internal successors, (6229), 4499 states have internal predecessors, (6229), 0 states have call successors, (0), 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 08:32:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4500 states to 4500 states and 6229 transitions. [2024-11-16 08:32:04,961 INFO L78 Accepts]: Start accepts. Automaton has 4500 states and 6229 transitions. Word has length 64 [2024-11-16 08:32:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:04,962 INFO L471 AbstractCegarLoop]: Abstraction has 4500 states and 6229 transitions. [2024-11-16 08:32:04,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4500 states and 6229 transitions. [2024-11-16 08:32:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:32:04,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:04,964 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] [2024-11-16 08:32:04,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:32:04,964 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:04,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1282931159, now seen corresponding path program 1 times [2024-11-16 08:32:04,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:04,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199640377] [2024-11-16 08:32:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:05,169 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 08:32:05,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199640377] [2024-11-16 08:32:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199640377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:05,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:05,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:32:05,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071537203] [2024-11-16 08:32:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:05,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:32:05,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:05,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:32:05,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:32:05,171 INFO L87 Difference]: Start difference. First operand 4500 states and 6229 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:05,564 INFO L93 Difference]: Finished difference Result 12026 states and 16732 transitions. [2024-11-16 08:32:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:32:05,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 08:32:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:05,576 INFO L225 Difference]: With dead ends: 12026 [2024-11-16 08:32:05,576 INFO L226 Difference]: Without dead ends: 8250 [2024-11-16 08:32:05,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:32:05,581 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 581 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:05,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 732 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:32:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2024-11-16 08:32:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 4309. [2024-11-16 08:32:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4308 states have (on average 1.3823119777158774) internal successors, (5955), 4308 states have internal predecessors, (5955), 0 states have call successors, (0), 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 08:32:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 5955 transitions. [2024-11-16 08:32:05,635 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 5955 transitions. Word has length 64 [2024-11-16 08:32:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:05,636 INFO L471 AbstractCegarLoop]: Abstraction has 4309 states and 5955 transitions. [2024-11-16 08:32:05,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 5955 transitions. [2024-11-16 08:32:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:32:05,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:05,637 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] [2024-11-16 08:32:05,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:32:05,638 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:05,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:05,638 INFO L85 PathProgramCache]: Analyzing trace with hash 775822267, now seen corresponding path program 1 times [2024-11-16 08:32:05,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:05,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085676062] [2024-11-16 08:32:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:05,861 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 08:32:05,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:05,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085676062] [2024-11-16 08:32:05,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085676062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:05,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:05,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:32:05,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456691824] [2024-11-16 08:32:05,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:05,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:32:05,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:05,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:32:05,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:32:05,863 INFO L87 Difference]: Start difference. First operand 4309 states and 5955 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,232 INFO L93 Difference]: Finished difference Result 10678 states and 14830 transitions. [2024-11-16 08:32:06,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:32:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 08:32:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,240 INFO L225 Difference]: With dead ends: 10678 [2024-11-16 08:32:06,241 INFO L226 Difference]: Without dead ends: 6954 [2024-11-16 08:32:06,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:32:06,245 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1121 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 733 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2024-11-16 08:32:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 4309. [2024-11-16 08:32:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4308 states have (on average 1.3809192200557103) internal successors, (5949), 4308 states have internal predecessors, (5949), 0 states have call successors, (0), 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 08:32:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 5949 transitions. [2024-11-16 08:32:06,293 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 5949 transitions. Word has length 64 [2024-11-16 08:32:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,294 INFO L471 AbstractCegarLoop]: Abstraction has 4309 states and 5949 transitions. [2024-11-16 08:32:06,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 5949 transitions. [2024-11-16 08:32:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:32:06,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:32:06,296 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash 528996653, now seen corresponding path program 1 times [2024-11-16 08:32:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134088510] [2024-11-16 08:32:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:06,335 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 08:32:06,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:06,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134088510] [2024-11-16 08:32:06,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134088510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:06,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:06,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11933106] [2024-11-16 08:32:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:06,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:06,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:06,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:06,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:06,337 INFO L87 Difference]: Start difference. First operand 4309 states and 5949 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,363 INFO L93 Difference]: Finished difference Result 5746 states and 7916 transitions. [2024-11-16 08:32:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 08:32:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,369 INFO L225 Difference]: With dead ends: 5746 [2024-11-16 08:32:06,369 INFO L226 Difference]: Without dead ends: 4175 [2024-11-16 08:32:06,371 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 08:32:06,372 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 156 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 495 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2024-11-16 08:32:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 4173. [2024-11-16 08:32:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4173 states, 4172 states have (on average 1.355465004793864) internal successors, (5655), 4172 states have internal predecessors, (5655), 0 states have call successors, (0), 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 08:32:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 5655 transitions. [2024-11-16 08:32:06,419 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 5655 transitions. Word has length 65 [2024-11-16 08:32:06,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,419 INFO L471 AbstractCegarLoop]: Abstraction has 4173 states and 5655 transitions. [2024-11-16 08:32:06,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 5655 transitions. [2024-11-16 08:32:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:32:06,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:32:06,421 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash 77321873, now seen corresponding path program 1 times [2024-11-16 08:32:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457084247] [2024-11-16 08:32:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:06,457 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 08:32:06,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:06,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457084247] [2024-11-16 08:32:06,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457084247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:06,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:06,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:06,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172827938] [2024-11-16 08:32:06,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:06,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:06,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:06,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:06,458 INFO L87 Difference]: Start difference. First operand 4173 states and 5655 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,478 INFO L93 Difference]: Finished difference Result 5947 states and 8073 transitions. [2024-11-16 08:32:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 08:32:06,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,482 INFO L225 Difference]: With dead ends: 5947 [2024-11-16 08:32:06,482 INFO L226 Difference]: Without dead ends: 3738 [2024-11-16 08:32:06,484 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 08:32:06,484 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 137 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 494 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2024-11-16 08:32:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3736. [2024-11-16 08:32:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3735 states have (on average 1.3362784471218205) internal successors, (4991), 3735 states have internal predecessors, (4991), 0 states have call successors, (0), 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 08:32:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 4991 transitions. [2024-11-16 08:32:06,512 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 4991 transitions. Word has length 65 [2024-11-16 08:32:06,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,512 INFO L471 AbstractCegarLoop]: Abstraction has 3736 states and 4991 transitions. [2024-11-16 08:32:06,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 4991 transitions. [2024-11-16 08:32:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:32:06,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:32:06,514 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1404673619, now seen corresponding path program 1 times [2024-11-16 08:32:06,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534200848] [2024-11-16 08:32:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:06,550 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 08:32:06,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:06,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534200848] [2024-11-16 08:32:06,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534200848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:06,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:06,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:06,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279824255] [2024-11-16 08:32:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:06,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:06,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:06,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:06,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:06,551 INFO L87 Difference]: Start difference. First operand 3736 states and 4991 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,571 INFO L93 Difference]: Finished difference Result 4968 states and 6638 transitions. [2024-11-16 08:32:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 08:32:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,574 INFO L225 Difference]: With dead ends: 4968 [2024-11-16 08:32:06,574 INFO L226 Difference]: Without dead ends: 2951 [2024-11-16 08:32:06,576 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 08:32:06,576 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 124 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 508 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2024-11-16 08:32:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2949. [2024-11-16 08:32:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 1.308683853459973) internal successors, (3858), 2948 states have internal predecessors, (3858), 0 states have call successors, (0), 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 08:32:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 3858 transitions. [2024-11-16 08:32:06,598 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 3858 transitions. Word has length 65 [2024-11-16 08:32:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,598 INFO L471 AbstractCegarLoop]: Abstraction has 2949 states and 3858 transitions. [2024-11-16 08:32:06,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 3858 transitions. [2024-11-16 08:32:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:32:06,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:32:06,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,602 INFO L85 PathProgramCache]: Analyzing trace with hash -362544341, now seen corresponding path program 1 times [2024-11-16 08:32:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133792022] [2024-11-16 08:32:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:06,635 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 08:32:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133792022] [2024-11-16 08:32:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133792022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144250510] [2024-11-16 08:32:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:06,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:06,637 INFO L87 Difference]: Start difference. First operand 2949 states and 3858 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,669 INFO L93 Difference]: Finished difference Result 5352 states and 7049 transitions. [2024-11-16 08:32:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-16 08:32:06,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,672 INFO L225 Difference]: With dead ends: 5352 [2024-11-16 08:32:06,672 INFO L226 Difference]: Without dead ends: 3937 [2024-11-16 08:32:06,674 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 08:32:06,674 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 158 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 322 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2024-11-16 08:32:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 2779. [2024-11-16 08:32:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 1.306695464362851) internal successors, (3630), 2778 states have internal predecessors, (3630), 0 states have call successors, (0), 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 08:32:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3630 transitions. [2024-11-16 08:32:06,714 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3630 transitions. Word has length 66 [2024-11-16 08:32:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,714 INFO L471 AbstractCegarLoop]: Abstraction has 2779 states and 3630 transitions. [2024-11-16 08:32:06,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3630 transitions. [2024-11-16 08:32:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:32:06,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:32:06,717 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash 561885567, now seen corresponding path program 1 times [2024-11-16 08:32:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291596607] [2024-11-16 08:32:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:06,757 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 08:32:06,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291596607] [2024-11-16 08:32:06,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291596607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:06,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:06,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:06,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858040583] [2024-11-16 08:32:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:06,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:06,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:06,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:06,760 INFO L87 Difference]: Start difference. First operand 2779 states and 3630 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:06,796 INFO L93 Difference]: Finished difference Result 5082 states and 6689 transitions. [2024-11-16 08:32:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:06,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-16 08:32:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:06,799 INFO L225 Difference]: With dead ends: 5082 [2024-11-16 08:32:06,799 INFO L226 Difference]: Without dead ends: 3687 [2024-11-16 08:32:06,801 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 08:32:06,801 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 160 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:06,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 324 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-11-16 08:32:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 2591. [2024-11-16 08:32:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 2590 states have (on average 1.3065637065637066) internal successors, (3384), 2590 states have internal predecessors, (3384), 0 states have call successors, (0), 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 08:32:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3384 transitions. [2024-11-16 08:32:06,835 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3384 transitions. Word has length 66 [2024-11-16 08:32:06,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:06,835 INFO L471 AbstractCegarLoop]: Abstraction has 2591 states and 3384 transitions. [2024-11-16 08:32:06,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:06,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3384 transitions. [2024-11-16 08:32:06,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 08:32:06,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:06,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:06,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:32:06,838 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:06,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:06,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1582500819, now seen corresponding path program 1 times [2024-11-16 08:32:06,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:06,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871032627] [2024-11-16 08:32:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:07,394 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 08:32:07,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:07,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871032627] [2024-11-16 08:32:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871032627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:07,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:32:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205453055] [2024-11-16 08:32:07,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:07,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:32:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:07,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:32:07,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:32:07,396 INFO L87 Difference]: Start difference. First operand 2591 states and 3384 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:08,200 INFO L93 Difference]: Finished difference Result 7282 states and 9622 transitions. [2024-11-16 08:32:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:32:08,201 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 08:32:08,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:08,206 INFO L225 Difference]: With dead ends: 7282 [2024-11-16 08:32:08,207 INFO L226 Difference]: Without dead ends: 6911 [2024-11-16 08:32:08,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:32:08,209 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1207 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:08,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 2793 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:32:08,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2024-11-16 08:32:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 2530. [2024-11-16 08:32:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2529 states have (on average 1.3072360616844603) internal successors, (3306), 2529 states have internal predecessors, (3306), 0 states have call successors, (0), 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 08:32:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3306 transitions. [2024-11-16 08:32:08,238 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3306 transitions. Word has length 67 [2024-11-16 08:32:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:08,238 INFO L471 AbstractCegarLoop]: Abstraction has 2530 states and 3306 transitions. [2024-11-16 08:32:08,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3306 transitions. [2024-11-16 08:32:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 08:32:08,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:08,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:08,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:32:08,240 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:08,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:08,240 INFO L85 PathProgramCache]: Analyzing trace with hash 634343505, now seen corresponding path program 1 times [2024-11-16 08:32:08,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:08,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016139240] [2024-11-16 08:32:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:08,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:09,021 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 08:32:09,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016139240] [2024-11-16 08:32:09,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016139240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:09,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:09,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-16 08:32:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554271896] [2024-11-16 08:32:09,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:09,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 08:32:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 08:32:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:32:09,023 INFO L87 Difference]: Start difference. First operand 2530 states and 3306 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:10,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:10,756 INFO L93 Difference]: Finished difference Result 5698 states and 7510 transitions. [2024-11-16 08:32:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 08:32:10,757 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 08:32:10,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:10,761 INFO L225 Difference]: With dead ends: 5698 [2024-11-16 08:32:10,761 INFO L226 Difference]: Without dead ends: 5625 [2024-11-16 08:32:10,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=311, Invalid=1411, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 08:32:10,762 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1543 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:10,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 3578 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:32:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2024-11-16 08:32:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 2537. [2024-11-16 08:32:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2536 states have (on average 1.3067823343848581) internal successors, (3314), 2536 states have internal predecessors, (3314), 0 states have call successors, (0), 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 08:32:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3314 transitions. [2024-11-16 08:32:10,788 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3314 transitions. Word has length 67 [2024-11-16 08:32:10,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:10,788 INFO L471 AbstractCegarLoop]: Abstraction has 2537 states and 3314 transitions. [2024-11-16 08:32:10,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3314 transitions. [2024-11-16 08:32:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:32:10,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:10,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:10,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:32:10,790 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:10,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1939958368, now seen corresponding path program 1 times [2024-11-16 08:32:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:10,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036694684] [2024-11-16 08:32:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:11,497 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 08:32:11,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:11,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036694684] [2024-11-16 08:32:11,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036694684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:11,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:11,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 08:32:11,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725835153] [2024-11-16 08:32:11,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:11,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 08:32:11,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:11,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 08:32:11,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:32:11,499 INFO L87 Difference]: Start difference. First operand 2537 states and 3314 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:12,637 INFO L93 Difference]: Finished difference Result 4798 states and 6317 transitions. [2024-11-16 08:32:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 08:32:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 08:32:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:12,641 INFO L225 Difference]: With dead ends: 4798 [2024-11-16 08:32:12,641 INFO L226 Difference]: Without dead ends: 4654 [2024-11-16 08:32:12,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=1149, Unknown=0, NotChecked=0, Total=1406 [2024-11-16 08:32:12,643 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 963 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:12,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 2677 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:32:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2024-11-16 08:32:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 2520. [2024-11-16 08:32:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 2519 states have (on average 1.3060738388249304) internal successors, (3290), 2519 states have internal predecessors, (3290), 0 states have call successors, (0), 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 08:32:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3290 transitions. [2024-11-16 08:32:12,680 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3290 transitions. Word has length 68 [2024-11-16 08:32:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:12,680 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3290 transitions. [2024-11-16 08:32:12,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:12,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3290 transitions. [2024-11-16 08:32:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:32:12,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:12,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:12,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:32:12,683 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:12,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:12,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1389140493, now seen corresponding path program 1 times [2024-11-16 08:32:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:12,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110199747] [2024-11-16 08:32:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:12,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:12,762 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 08:32:12,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:12,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110199747] [2024-11-16 08:32:12,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110199747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:12,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:12,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:12,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237695420] [2024-11-16 08:32:12,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:12,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:12,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:12,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:12,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:12,764 INFO L87 Difference]: Start difference. First operand 2520 states and 3290 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:12,807 INFO L93 Difference]: Finished difference Result 2526 states and 3293 transitions. [2024-11-16 08:32:12,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:12,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 08:32:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:12,809 INFO L225 Difference]: With dead ends: 2526 [2024-11-16 08:32:12,809 INFO L226 Difference]: Without dead ends: 2315 [2024-11-16 08:32:12,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:12,810 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 441 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:12,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 575 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-16 08:32:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2311. [2024-11-16 08:32:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 2310 states have (on average 1.309090909090909) internal successors, (3024), 2310 states have internal predecessors, (3024), 0 states have call successors, (0), 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 08:32:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3024 transitions. [2024-11-16 08:32:12,830 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3024 transitions. Word has length 69 [2024-11-16 08:32:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:12,830 INFO L471 AbstractCegarLoop]: Abstraction has 2311 states and 3024 transitions. [2024-11-16 08:32:12,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3024 transitions. [2024-11-16 08:32:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 08:32:12,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:12,832 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] [2024-11-16 08:32:12,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:32:12,833 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:12,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2057454771, now seen corresponding path program 1 times [2024-11-16 08:32:12,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:12,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273561338] [2024-11-16 08:32:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:12,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:12,898 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 08:32:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:12,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273561338] [2024-11-16 08:32:12,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273561338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:12,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:12,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:12,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097065879] [2024-11-16 08:32:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:12,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:12,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:12,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:12,900 INFO L87 Difference]: Start difference. First operand 2311 states and 3024 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 08:32:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:12,921 INFO L93 Difference]: Finished difference Result 5793 states and 7689 transitions. [2024-11-16 08:32:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:12,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-16 08:32:12,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:12,924 INFO L225 Difference]: With dead ends: 5793 [2024-11-16 08:32:12,925 INFO L226 Difference]: Without dead ends: 3964 [2024-11-16 08:32:12,926 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 08:32:12,927 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 104 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:12,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3964 states. [2024-11-16 08:32:12,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3964 to 3736. [2024-11-16 08:32:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3735 states have (on average 1.3140562248995984) internal successors, (4908), 3735 states have internal predecessors, (4908), 0 states have call successors, (0), 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 08:32:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 4908 transitions. [2024-11-16 08:32:12,958 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 4908 transitions. Word has length 72 [2024-11-16 08:32:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:12,958 INFO L471 AbstractCegarLoop]: Abstraction has 3736 states and 4908 transitions. [2024-11-16 08:32:12,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 08:32:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 4908 transitions. [2024-11-16 08:32:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 08:32:12,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:12,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:12,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:32:12,960 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:12,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1218486120, now seen corresponding path program 1 times [2024-11-16 08:32:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:12,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409990813] [2024-11-16 08:32:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:13,038 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 08:32:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409990813] [2024-11-16 08:32:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409990813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:13,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:13,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:13,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729752120] [2024-11-16 08:32:13,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:13,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:13,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:13,040 INFO L87 Difference]: Start difference. First operand 3736 states and 4908 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:13,066 INFO L93 Difference]: Finished difference Result 9892 states and 13082 transitions. [2024-11-16 08:32:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:13,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-16 08:32:13,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:13,072 INFO L225 Difference]: With dead ends: 9892 [2024-11-16 08:32:13,072 INFO L226 Difference]: Without dead ends: 6638 [2024-11-16 08:32:13,076 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 08:32:13,076 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 92 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:13,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2024-11-16 08:32:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6184. [2024-11-16 08:32:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6183 states have (on average 1.3098819343360828) internal successors, (8099), 6183 states have internal predecessors, (8099), 0 states have call successors, (0), 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 08:32:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 8099 transitions. [2024-11-16 08:32:13,153 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 8099 transitions. Word has length 73 [2024-11-16 08:32:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:13,153 INFO L471 AbstractCegarLoop]: Abstraction has 6184 states and 8099 transitions. [2024-11-16 08:32:13,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 8099 transitions. [2024-11-16 08:32:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 08:32:13,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:13,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:13,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:32:13,155 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:13,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1254584800, now seen corresponding path program 1 times [2024-11-16 08:32:13,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:13,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328079420] [2024-11-16 08:32:13,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:13,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:13,231 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 08:32:13,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328079420] [2024-11-16 08:32:13,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328079420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:13,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:13,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101750959] [2024-11-16 08:32:13,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:13,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:13,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:13,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:13,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:13,233 INFO L87 Difference]: Start difference. First operand 6184 states and 8099 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:13,268 INFO L93 Difference]: Finished difference Result 16761 states and 21950 transitions. [2024-11-16 08:32:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:13,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-16 08:32:13,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:13,277 INFO L225 Difference]: With dead ends: 16761 [2024-11-16 08:32:13,277 INFO L226 Difference]: Without dead ends: 10971 [2024-11-16 08:32:13,283 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 08:32:13,284 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 103 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:13,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 409 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:13,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2024-11-16 08:32:13,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 10177. [2024-11-16 08:32:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 10176 states have (on average 1.2981525157232705) internal successors, (13210), 10176 states have internal predecessors, (13210), 0 states have call successors, (0), 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 08:32:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 13210 transitions. [2024-11-16 08:32:13,363 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 13210 transitions. Word has length 75 [2024-11-16 08:32:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:13,363 INFO L471 AbstractCegarLoop]: Abstraction has 10177 states and 13210 transitions. [2024-11-16 08:32:13,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 13210 transitions. [2024-11-16 08:32:13,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:32:13,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:13,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:13,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:32:13,365 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:13,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash -910573006, now seen corresponding path program 1 times [2024-11-16 08:32:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139866337] [2024-11-16 08:32:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:13,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:13,550 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 08:32:13,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139866337] [2024-11-16 08:32:13,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139866337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:13,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:13,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:32:13,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293055069] [2024-11-16 08:32:13,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:13,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:32:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:32:13,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:32:13,552 INFO L87 Difference]: Start difference. First operand 10177 states and 13210 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:13,590 INFO L93 Difference]: Finished difference Result 11491 states and 14851 transitions. [2024-11-16 08:32:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:32:13,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:32:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:13,598 INFO L225 Difference]: With dead ends: 11491 [2024-11-16 08:32:13,599 INFO L226 Difference]: Without dead ends: 11489 [2024-11-16 08:32:13,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:32:13,602 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:13,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 899 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11489 states. [2024-11-16 08:32:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11489 to 11489. [2024-11-16 08:32:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11489 states, 11488 states have (on average 1.2641016713091922) internal successors, (14522), 11488 states have internal predecessors, (14522), 0 states have call successors, (0), 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 08:32:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11489 states to 11489 states and 14522 transitions. [2024-11-16 08:32:13,683 INFO L78 Accepts]: Start accepts. Automaton has 11489 states and 14522 transitions. Word has length 76 [2024-11-16 08:32:13,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:13,683 INFO L471 AbstractCegarLoop]: Abstraction has 11489 states and 14522 transitions. [2024-11-16 08:32:13,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand 11489 states and 14522 transitions. [2024-11-16 08:32:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 08:32:13,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:13,684 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:13,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:32:13,685 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:13,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2123661290, now seen corresponding path program 1 times [2024-11-16 08:32:13,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:13,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864761346] [2024-11-16 08:32:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:13,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:13,722 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 08:32:13,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:13,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864761346] [2024-11-16 08:32:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864761346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:13,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:32:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063943954] [2024-11-16 08:32:13,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:13,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:32:13,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:32:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:32:13,724 INFO L87 Difference]: Start difference. First operand 11489 states and 14522 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:13,772 INFO L93 Difference]: Finished difference Result 27877 states and 35096 transitions. [2024-11-16 08:32:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:32:13,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 08:32:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:13,786 INFO L225 Difference]: With dead ends: 27877 [2024-11-16 08:32:13,786 INFO L226 Difference]: Without dead ends: 16795 [2024-11-16 08:32:13,797 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 08:32:13,797 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 116 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:13,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 307 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:32:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16795 states. [2024-11-16 08:32:13,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16795 to 16793. [2024-11-16 08:32:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16793 states, 16792 states have (on average 1.241900905192949) internal successors, (20854), 16792 states have internal predecessors, (20854), 0 states have call successors, (0), 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 08:32:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16793 states to 16793 states and 20854 transitions. [2024-11-16 08:32:14,043 INFO L78 Accepts]: Start accepts. Automaton has 16793 states and 20854 transitions. Word has length 77 [2024-11-16 08:32:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:14,043 INFO L471 AbstractCegarLoop]: Abstraction has 16793 states and 20854 transitions. [2024-11-16 08:32:14,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 16793 states and 20854 transitions. [2024-11-16 08:32:14,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:32:14,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:14,047 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:14,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:32:14,047 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:14,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash -759822266, now seen corresponding path program 1 times [2024-11-16 08:32:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:14,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474524036] [2024-11-16 08:32:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:14,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474524036] [2024-11-16 08:32:14,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474524036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:32:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471446338] [2024-11-16 08:32:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:14,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:14,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:32:14,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:32:14,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:32:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:14,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 08:32:14,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:32:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:15,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:32:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:16,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471446338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:32:16,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:32:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 14] total 30 [2024-11-16 08:32:16,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369518669] [2024-11-16 08:32:16,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:32:16,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 08:32:16,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 08:32:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:32:16,299 INFO L87 Difference]: Start difference. First operand 16793 states and 20854 transitions. Second operand has 30 states, 30 states have (on average 9.166666666666666) internal successors, (275), 30 states have internal predecessors, (275), 0 states have call successors, (0), 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 08:32:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:34,274 INFO L93 Difference]: Finished difference Result 140749 states and 173872 transitions. [2024-11-16 08:32:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-16 08:32:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.166666666666666) internal successors, (275), 30 states have internal predecessors, (275), 0 states have call successors, (0), 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 97 [2024-11-16 08:32:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:34,400 INFO L225 Difference]: With dead ends: 140749 [2024-11-16 08:32:34,400 INFO L226 Difference]: Without dead ends: 124363 [2024-11-16 08:32:34,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 406 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74631 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=15994, Invalid=150062, Unknown=0, NotChecked=0, Total=166056 [2024-11-16 08:32:34,440 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 13662 mSDsluCounter, 5745 mSDsCounter, 0 mSdLazyCounter, 6073 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13662 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 6375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 6073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:34,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13662 Valid, 6145 Invalid, 6375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 6073 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 08:32:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124363 states. [2024-11-16 08:32:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124363 to 32825. [2024-11-16 08:32:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32825 states, 32824 states have (on average 1.2436327077747988) internal successors, (40821), 32824 states have internal predecessors, (40821), 0 states have call successors, (0), 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 08:32:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32825 states to 32825 states and 40821 transitions. [2024-11-16 08:32:35,057 INFO L78 Accepts]: Start accepts. Automaton has 32825 states and 40821 transitions. Word has length 97 [2024-11-16 08:32:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:35,057 INFO L471 AbstractCegarLoop]: Abstraction has 32825 states and 40821 transitions. [2024-11-16 08:32:35,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.166666666666666) internal successors, (275), 30 states have internal predecessors, (275), 0 states have call successors, (0), 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 08:32:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 32825 states and 40821 transitions. [2024-11-16 08:32:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 08:32:35,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:35,064 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:35,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:32:35,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:35,265 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:35,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash -212959017, now seen corresponding path program 1 times [2024-11-16 08:32:35,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:35,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115762747] [2024-11-16 08:32:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:35,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:35,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:35,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115762747] [2024-11-16 08:32:35,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115762747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:32:35,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451357349] [2024-11-16 08:32:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:35,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:35,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:32:35,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:32:35,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:32:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:35,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 08:32:35,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:32:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:36,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:32:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:36,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451357349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:32:36,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:32:36,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-16 08:32:36,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315338734] [2024-11-16 08:32:36,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:32:36,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:32:36,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:36,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:32:36,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:32:36,174 INFO L87 Difference]: Start difference. First operand 32825 states and 40821 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 08:32:36,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:36,477 INFO L93 Difference]: Finished difference Result 65744 states and 81833 transitions. [2024-11-16 08:32:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:32:36,477 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 106 [2024-11-16 08:32:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:36,506 INFO L225 Difference]: With dead ends: 65744 [2024-11-16 08:32:36,506 INFO L226 Difference]: Without dead ends: 33308 [2024-11-16 08:32:36,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:32:36,526 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1642 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:36,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 801 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:36,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33308 states. [2024-11-16 08:32:36,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33308 to 29703. [2024-11-16 08:32:36,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29703 states, 29702 states have (on average 1.22190424887213) internal successors, (36293), 29702 states have internal predecessors, (36293), 0 states have call successors, (0), 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 08:32:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29703 states to 29703 states and 36293 transitions. [2024-11-16 08:32:36,864 INFO L78 Accepts]: Start accepts. Automaton has 29703 states and 36293 transitions. Word has length 106 [2024-11-16 08:32:36,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:36,864 INFO L471 AbstractCegarLoop]: Abstraction has 29703 states and 36293 transitions. [2024-11-16 08:32:36,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 08:32:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 29703 states and 36293 transitions. [2024-11-16 08:32:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:32:36,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:36,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:36,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:32:37,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-16 08:32:37,075 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:37,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1367896965, now seen corresponding path program 1 times [2024-11-16 08:32:37,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:37,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39683227] [2024-11-16 08:32:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39683227] [2024-11-16 08:32:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39683227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:32:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176830668] [2024-11-16 08:32:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:37,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:37,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:32:37,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:32:37,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:32:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:37,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 08:32:37,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:32:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:37,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:32:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:37,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176830668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:32:37,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:32:37,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-16 08:32:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971221559] [2024-11-16 08:32:37,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:32:37,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:32:37,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:32:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:32:37,667 INFO L87 Difference]: Start difference. First operand 29703 states and 36293 transitions. Second operand has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 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 08:32:38,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:38,075 INFO L93 Difference]: Finished difference Result 61724 states and 75766 transitions. [2024-11-16 08:32:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:32:38,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 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 108 [2024-11-16 08:32:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:38,108 INFO L225 Difference]: With dead ends: 61724 [2024-11-16 08:32:38,108 INFO L226 Difference]: Without dead ends: 32437 [2024-11-16 08:32:38,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:32:38,264 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1096 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:38,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 862 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:38,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32437 states. [2024-11-16 08:32:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32437 to 29298. [2024-11-16 08:32:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29298 states, 29297 states have (on average 1.207120182953886) internal successors, (35365), 29297 states have internal predecessors, (35365), 0 states have call successors, (0), 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 08:32:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29298 states to 29298 states and 35365 transitions. [2024-11-16 08:32:38,475 INFO L78 Accepts]: Start accepts. Automaton has 29298 states and 35365 transitions. Word has length 108 [2024-11-16 08:32:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:38,476 INFO L471 AbstractCegarLoop]: Abstraction has 29298 states and 35365 transitions. [2024-11-16 08:32:38,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 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 08:32:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 29298 states and 35365 transitions. [2024-11-16 08:32:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:32:38,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:38,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:38,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:32:38,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:38,686 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:38,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1793091105, now seen corresponding path program 1 times [2024-11-16 08:32:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:38,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981977208] [2024-11-16 08:32:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981977208] [2024-11-16 08:32:38,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981977208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:38,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:38,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:32:38,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599523885] [2024-11-16 08:32:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:38,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:32:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:32:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:38,851 INFO L87 Difference]: Start difference. First operand 29298 states and 35365 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:39,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:39,042 INFO L93 Difference]: Finished difference Result 58222 states and 70245 transitions. [2024-11-16 08:32:39,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:32:39,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 08:32:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:39,070 INFO L225 Difference]: With dead ends: 58222 [2024-11-16 08:32:39,070 INFO L226 Difference]: Without dead ends: 29340 [2024-11-16 08:32:39,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:32:39,089 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 333 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:39,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 348 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:39,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29340 states. [2024-11-16 08:32:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29340 to 27837. [2024-11-16 08:32:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27837 states, 27836 states have (on average 1.1846529673803707) internal successors, (32976), 27836 states have internal predecessors, (32976), 0 states have call successors, (0), 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 08:32:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27837 states to 27837 states and 32976 transitions. [2024-11-16 08:32:39,469 INFO L78 Accepts]: Start accepts. Automaton has 27837 states and 32976 transitions. Word has length 111 [2024-11-16 08:32:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:39,470 INFO L471 AbstractCegarLoop]: Abstraction has 27837 states and 32976 transitions. [2024-11-16 08:32:39,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 27837 states and 32976 transitions. [2024-11-16 08:32:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:32:39,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:39,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:39,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 08:32:39,476 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:39,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -665622274, now seen corresponding path program 1 times [2024-11-16 08:32:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:39,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172347145] [2024-11-16 08:32:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:39,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:39,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172347145] [2024-11-16 08:32:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172347145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:39,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:39,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:32:39,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316778545] [2024-11-16 08:32:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:39,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:32:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:32:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:32:39,733 INFO L87 Difference]: Start difference. First operand 27837 states and 32976 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:40,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:40,275 INFO L93 Difference]: Finished difference Result 50592 states and 59905 transitions. [2024-11-16 08:32:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:32:40,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 08:32:40,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:40,310 INFO L225 Difference]: With dead ends: 50592 [2024-11-16 08:32:40,310 INFO L226 Difference]: Without dead ends: 41179 [2024-11-16 08:32:40,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:32:40,322 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 915 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:40,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 800 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:32:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41179 states. [2024-11-16 08:32:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41179 to 40137. [2024-11-16 08:32:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40137 states, 40136 states have (on average 1.184697030097668) internal successors, (47549), 40136 states have internal predecessors, (47549), 0 states have call successors, (0), 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 08:32:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40137 states to 40137 states and 47549 transitions. [2024-11-16 08:32:40,785 INFO L78 Accepts]: Start accepts. Automaton has 40137 states and 47549 transitions. Word has length 111 [2024-11-16 08:32:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:40,785 INFO L471 AbstractCegarLoop]: Abstraction has 40137 states and 47549 transitions. [2024-11-16 08:32:40,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 40137 states and 47549 transitions. [2024-11-16 08:32:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:32:40,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:40,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:40,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 08:32:40,794 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:40,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1602402262, now seen corresponding path program 1 times [2024-11-16 08:32:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:40,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161517754] [2024-11-16 08:32:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:32:40,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161517754] [2024-11-16 08:32:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161517754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:32:40,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:32:40,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:32:40,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221291162] [2024-11-16 08:32:40,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:32:40,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:32:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:40,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:32:40,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:32:40,942 INFO L87 Difference]: Start difference. First operand 40137 states and 47549 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:41,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:41,158 INFO L93 Difference]: Finished difference Result 73581 states and 86817 transitions. [2024-11-16 08:32:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:32:41,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 114 [2024-11-16 08:32:41,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:41,218 INFO L225 Difference]: With dead ends: 73581 [2024-11-16 08:32:41,218 INFO L226 Difference]: Without dead ends: 58424 [2024-11-16 08:32:41,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:32:41,239 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 108 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:41,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 401 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:32:41,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58424 states. [2024-11-16 08:32:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58424 to 46616. [2024-11-16 08:32:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46616 states, 46615 states have (on average 1.1848975651614286) internal successors, (55234), 46615 states have internal predecessors, (55234), 0 states have call successors, (0), 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 08:32:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46616 states to 46616 states and 55234 transitions. [2024-11-16 08:32:41,732 INFO L78 Accepts]: Start accepts. Automaton has 46616 states and 55234 transitions. Word has length 114 [2024-11-16 08:32:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:41,732 INFO L471 AbstractCegarLoop]: Abstraction has 46616 states and 55234 transitions. [2024-11-16 08:32:41,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:32:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 46616 states and 55234 transitions. [2024-11-16 08:32:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:32:41,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:41,740 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:41,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 08:32:41,740 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:41,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 400229513, now seen corresponding path program 1 times [2024-11-16 08:32:41,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:41,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045532779] [2024-11-16 08:32:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:41,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:42,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:42,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045532779] [2024-11-16 08:32:42,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045532779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:32:42,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754278570] [2024-11-16 08:32:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:42,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:42,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:32:42,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:32:42,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:32:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:42,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 08:32:42,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:32:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:43,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:32:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:43,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754278570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:32:43,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:32:43,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 12] total 40 [2024-11-16 08:32:43,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480059845] [2024-11-16 08:32:43,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:32:43,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-16 08:32:43,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:32:43,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-16 08:32:43,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 08:32:43,980 INFO L87 Difference]: Start difference. First operand 46616 states and 55234 transitions. Second operand has 40 states, 40 states have (on average 8.05) internal successors, (322), 40 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:57,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:32:57,608 INFO L93 Difference]: Finished difference Result 225144 states and 264727 transitions. [2024-11-16 08:32:57,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2024-11-16 08:32:57,608 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 8.05) internal successors, (322), 40 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-16 08:32:57,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:32:57,827 INFO L225 Difference]: With dead ends: 225144 [2024-11-16 08:32:57,827 INFO L226 Difference]: Without dead ends: 205653 [2024-11-16 08:32:57,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28196 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=8594, Invalid=64576, Unknown=0, NotChecked=0, Total=73170 [2024-11-16 08:32:57,879 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 10615 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 6846 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10615 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 7019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 6846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:32:57,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10615 Valid, 6420 Invalid, 7019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 6846 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:32:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205653 states. [2024-11-16 08:32:59,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205653 to 61097. [2024-11-16 08:32:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61097 states, 61096 states have (on average 1.1844310593164855) internal successors, (72364), 61096 states have internal predecessors, (72364), 0 states have call successors, (0), 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 08:32:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61097 states to 61097 states and 72364 transitions. [2024-11-16 08:32:59,268 INFO L78 Accepts]: Start accepts. Automaton has 61097 states and 72364 transitions. Word has length 114 [2024-11-16 08:32:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:32:59,268 INFO L471 AbstractCegarLoop]: Abstraction has 61097 states and 72364 transitions. [2024-11-16 08:32:59,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 8.05) internal successors, (322), 40 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:32:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 61097 states and 72364 transitions. [2024-11-16 08:32:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:32:59,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:32:59,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:32:59,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 08:32:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-16 08:32:59,475 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:32:59,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:32:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1625207024, now seen corresponding path program 1 times [2024-11-16 08:32:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:32:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331675281] [2024-11-16 08:32:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:32:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:32:59,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:32:59,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331675281] [2024-11-16 08:32:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331675281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:32:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875117291] [2024-11-16 08:32:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:32:59,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:32:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:32:59,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:32:59,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 08:32:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:32:59,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 08:32:59,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:33:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:00,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:33:00,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875117291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:33:00,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:33:00,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 25 [2024-11-16 08:33:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143345534] [2024-11-16 08:33:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:33:00,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 08:33:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 08:33:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:33:00,715 INFO L87 Difference]: Start difference. First operand 61097 states and 72364 transitions. Second operand has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:01,636 INFO L93 Difference]: Finished difference Result 141010 states and 166940 transitions. [2024-11-16 08:33:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-16 08:33:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-16 08:33:01,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:01,929 INFO L225 Difference]: With dead ends: 141010 [2024-11-16 08:33:01,929 INFO L226 Difference]: Without dead ends: 122646 [2024-11-16 08:33:01,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=284, Invalid=1786, Unknown=0, NotChecked=0, Total=2070 [2024-11-16 08:33:01,951 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1201 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:01,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2925 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:33:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122646 states. [2024-11-16 08:33:02,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122646 to 69463. [2024-11-16 08:33:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69463 states, 69462 states have (on average 1.1834240304051136) internal successors, (82203), 69462 states have internal predecessors, (82203), 0 states have call successors, (0), 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 08:33:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69463 states to 69463 states and 82203 transitions. [2024-11-16 08:33:02,933 INFO L78 Accepts]: Start accepts. Automaton has 69463 states and 82203 transitions. Word has length 114 [2024-11-16 08:33:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:02,933 INFO L471 AbstractCegarLoop]: Abstraction has 69463 states and 82203 transitions. [2024-11-16 08:33:02,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 15 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand 69463 states and 82203 transitions. [2024-11-16 08:33:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:33:02,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:02,940 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:02,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 08:33:03,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-16 08:33:03,140 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:03,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash -480272448, now seen corresponding path program 1 times [2024-11-16 08:33:03,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:03,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147109099] [2024-11-16 08:33:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:03,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:33:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147109099] [2024-11-16 08:33:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147109099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:33:03,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:33:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:33:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29031980] [2024-11-16 08:33:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:33:03,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:33:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:33:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:33:03,208 INFO L87 Difference]: Start difference. First operand 69463 states and 82203 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:03,704 INFO L93 Difference]: Finished difference Result 115793 states and 136656 transitions. [2024-11-16 08:33:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:33:03,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-16 08:33:03,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:03,763 INFO L225 Difference]: With dead ends: 115793 [2024-11-16 08:33:03,763 INFO L226 Difference]: Without dead ends: 47405 [2024-11-16 08:33:03,810 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 08:33:03,811 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 76 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:03,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 321 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:33:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47405 states. [2024-11-16 08:33:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47405 to 45184. [2024-11-16 08:33:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45184 states, 45183 states have (on average 1.1607241661686918) internal successors, (52445), 45183 states have internal predecessors, (52445), 0 states have call successors, (0), 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 08:33:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45184 states to 45184 states and 52445 transitions. [2024-11-16 08:33:04,374 INFO L78 Accepts]: Start accepts. Automaton has 45184 states and 52445 transitions. Word has length 114 [2024-11-16 08:33:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:04,374 INFO L471 AbstractCegarLoop]: Abstraction has 45184 states and 52445 transitions. [2024-11-16 08:33:04,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 45184 states and 52445 transitions. [2024-11-16 08:33:04,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:33:04,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:04,378 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:04,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 08:33:04,378 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:04,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash 653655170, now seen corresponding path program 1 times [2024-11-16 08:33:04,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:04,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151204999] [2024-11-16 08:33:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:33:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151204999] [2024-11-16 08:33:04,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151204999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:33:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548283463] [2024-11-16 08:33:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:04,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:33:04,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:33:04,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:33:04,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 08:33:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:04,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 08:33:04,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:33:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:05,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:33:05,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548283463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:33:05,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:33:05,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 21 [2024-11-16 08:33:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702782435] [2024-11-16 08:33:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:33:05,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:33:05,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:33:05,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:33:05,484 INFO L87 Difference]: Start difference. First operand 45184 states and 52445 transitions. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:06,089 INFO L93 Difference]: Finished difference Result 60817 states and 70619 transitions. [2024-11-16 08:33:06,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:33:06,089 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-16 08:33:06,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:06,135 INFO L225 Difference]: With dead ends: 60817 [2024-11-16 08:33:06,135 INFO L226 Difference]: Without dead ends: 45925 [2024-11-16 08:33:06,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:33:06,156 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 424 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:06,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 2596 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:33:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45925 states. [2024-11-16 08:33:06,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45925 to 45184. [2024-11-16 08:33:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45184 states, 45183 states have (on average 1.159728216364562) internal successors, (52400), 45183 states have internal predecessors, (52400), 0 states have call successors, (0), 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 08:33:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45184 states to 45184 states and 52400 transitions. [2024-11-16 08:33:06,745 INFO L78 Accepts]: Start accepts. Automaton has 45184 states and 52400 transitions. Word has length 114 [2024-11-16 08:33:06,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:06,746 INFO L471 AbstractCegarLoop]: Abstraction has 45184 states and 52400 transitions. [2024-11-16 08:33:06,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:06,746 INFO L276 IsEmpty]: Start isEmpty. Operand 45184 states and 52400 transitions. [2024-11-16 08:33:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:33:06,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:06,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:06,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 08:33:06,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-16 08:33:06,950 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:06,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash 251627511, now seen corresponding path program 1 times [2024-11-16 08:33:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:06,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225227833] [2024-11-16 08:33:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:06,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:07,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:33:07,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225227833] [2024-11-16 08:33:07,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225227833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:33:07,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457464889] [2024-11-16 08:33:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:07,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:33:07,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:33:07,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:33:07,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 08:33:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:07,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 08:33:07,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:33:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:08,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:33:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:09,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457464889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:33:09,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:33:09,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 33 [2024-11-16 08:33:09,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136553087] [2024-11-16 08:33:09,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:33:09,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-16 08:33:09,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:09,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-16 08:33:09,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 08:33:09,096 INFO L87 Difference]: Start difference. First operand 45184 states and 52400 transitions. Second operand has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 0 states have call successors, (0), 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 08:33:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:15,176 INFO L93 Difference]: Finished difference Result 229181 states and 267227 transitions. [2024-11-16 08:33:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-16 08:33:15,176 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-16 08:33:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:15,403 INFO L225 Difference]: With dead ends: 229181 [2024-11-16 08:33:15,403 INFO L226 Difference]: Without dead ends: 205900 [2024-11-16 08:33:15,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6210 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2754, Invalid=16152, Unknown=0, NotChecked=0, Total=18906 [2024-11-16 08:33:15,438 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 4382 mSDsluCounter, 9241 mSDsCounter, 0 mSdLazyCounter, 6353 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4382 SdHoareTripleChecker+Valid, 9948 SdHoareTripleChecker+Invalid, 6418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 6353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:15,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4382 Valid, 9948 Invalid, 6418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 6353 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 08:33:15,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205900 states. [2024-11-16 08:33:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205900 to 50575. [2024-11-16 08:33:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50575 states, 50574 states have (on average 1.16107090599913) internal successors, (58720), 50574 states have internal predecessors, (58720), 0 states have call successors, (0), 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 08:33:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50575 states to 50575 states and 58720 transitions. [2024-11-16 08:33:16,655 INFO L78 Accepts]: Start accepts. Automaton has 50575 states and 58720 transitions. Word has length 115 [2024-11-16 08:33:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:16,655 INFO L471 AbstractCegarLoop]: Abstraction has 50575 states and 58720 transitions. [2024-11-16 08:33:16,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 0 states have call successors, (0), 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 08:33:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 50575 states and 58720 transitions. [2024-11-16 08:33:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:33:16,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:16,659 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:16,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 08:33:16,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:33:16,860 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:16,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:16,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1481466908, now seen corresponding path program 1 times [2024-11-16 08:33:16,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:16,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277823457] [2024-11-16 08:33:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:16,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:33:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277823457] [2024-11-16 08:33:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277823457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:33:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:33:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:33:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690413587] [2024-11-16 08:33:16,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:33:16,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:33:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:16,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:33:16,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:33:16,913 INFO L87 Difference]: Start difference. First operand 50575 states and 58720 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:17,059 INFO L93 Difference]: Finished difference Result 77896 states and 90442 transitions. [2024-11-16 08:33:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:33:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:33:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:17,118 INFO L225 Difference]: With dead ends: 77896 [2024-11-16 08:33:17,118 INFO L226 Difference]: Without dead ends: 64360 [2024-11-16 08:33:17,137 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 08:33:17,137 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 74 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:17,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 409 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:33:17,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64360 states. [2024-11-16 08:33:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64360 to 50679. [2024-11-16 08:33:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50679 states, 50678 states have (on average 1.1522159516950157) internal successors, (58392), 50678 states have internal predecessors, (58392), 0 states have call successors, (0), 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 08:33:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50679 states to 50679 states and 58392 transitions. [2024-11-16 08:33:17,840 INFO L78 Accepts]: Start accepts. Automaton has 50679 states and 58392 transitions. Word has length 116 [2024-11-16 08:33:17,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:17,841 INFO L471 AbstractCegarLoop]: Abstraction has 50679 states and 58392 transitions. [2024-11-16 08:33:17,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:33:17,841 INFO L276 IsEmpty]: Start isEmpty. Operand 50679 states and 58392 transitions. [2024-11-16 08:33:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:33:17,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:17,846 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:17,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 08:33:17,846 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:17,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:17,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1672229960, now seen corresponding path program 1 times [2024-11-16 08:33:17,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:17,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878439041] [2024-11-16 08:33:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:33:18,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:33:18,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878439041] [2024-11-16 08:33:18,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878439041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:33:18,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253233529] [2024-11-16 08:33:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:18,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:33:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:33:18,909 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:33:18,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 08:33:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:33:19,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 08:33:19,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:33:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:33:19,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:33:19,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253233529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:33:19,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:33:19,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2024-11-16 08:33:19,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306588878] [2024-11-16 08:33:19,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:33:19,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:33:19,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:33:19,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:33:19,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:33:19,575 INFO L87 Difference]: Start difference. First operand 50679 states and 58392 transitions. Second operand has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:33:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:33:19,990 INFO L93 Difference]: Finished difference Result 60560 states and 69881 transitions. [2024-11-16 08:33:19,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:33:19,991 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:33:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:33:20,041 INFO L225 Difference]: With dead ends: 60560 [2024-11-16 08:33:20,041 INFO L226 Difference]: Without dead ends: 51631 [2024-11-16 08:33:20,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 08:33:20,058 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 548 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:33:20,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1572 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:33:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51631 states. [2024-11-16 08:33:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51631 to 50425. [2024-11-16 08:33:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50425 states, 50424 states have (on average 1.1526455656036807) internal successors, (58121), 50424 states have internal predecessors, (58121), 0 states have call successors, (0), 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 08:33:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50425 states to 50425 states and 58121 transitions. [2024-11-16 08:33:20,596 INFO L78 Accepts]: Start accepts. Automaton has 50425 states and 58121 transitions. Word has length 116 [2024-11-16 08:33:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:33:20,596 INFO L471 AbstractCegarLoop]: Abstraction has 50425 states and 58121 transitions. [2024-11-16 08:33:20,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 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 08:33:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 50425 states and 58121 transitions. [2024-11-16 08:33:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:33:20,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:33:20,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:33:20,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 08:33:20,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-16 08:33:20,803 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:33:20,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:33:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 704879306, now seen corresponding path program 1 times [2024-11-16 08:33:20,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:33:20,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11001338] [2024-11-16 08:33:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:33:20,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:33:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat