./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3fcf713e89fe507946e50cd7ac5d1f3269c91b4606b9da766f31c3632a8650aa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:28:40,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:28:40,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:28:40,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:28:40,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:28:40,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:28:40,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:28:40,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:28:40,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:28:40,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:28:40,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:28:40,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:28:40,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:28:40,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:28:40,374 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:28:40,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:28:40,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:28:40,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:28:40,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:28:40,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:28:40,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:28:40,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:28:40,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:28:40,379 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:28:40,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:28:40,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:28:40,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:28:40,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:28:40,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:28:40,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:28:40,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:28:40,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:28:40,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:28:40,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:28:40,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:28:40,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:28:40,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:28:40,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fcf713e89fe507946e50cd7ac5d1f3269c91b4606b9da766f31c3632a8650aa [2024-11-16 08:28:40,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:28:40,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:28:40,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:28:40,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:28:40,691 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:28:40,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:28:42,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:28:42,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:28:42,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:28:42,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e866560a0/ab462e660af54ea987ebaa5f86d8acc5/FLAG51e5fd4b8 [2024-11-16 08:28:42,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e866560a0/ab462e660af54ea987ebaa5f86d8acc5 [2024-11-16 08:28:42,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:28:42,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:28:42,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:28:42,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:28:42,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:28:42,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:28:42" (1/1) ... [2024-11-16 08:28:42,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5caa6b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:42, skipping insertion in model container [2024-11-16 08:28:42,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:28:42" (1/1) ... [2024-11-16 08:28:42,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:28:42,875 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12650,12663] [2024-11-16 08:28:42,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:28:43,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:28:43,120 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12650,12663] [2024-11-16 08:28:43,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:28:43,209 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:28:43,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43 WrapperNode [2024-11-16 08:28:43,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:28:43,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:28:43,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:28:43,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:28:43,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,322 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1331 [2024-11-16 08:28:43,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:28:43,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:28:43,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:28:43,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:28:43,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,375 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 08:28:43,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:28:43,439 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:28:43,440 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:28:43,440 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:28:43,441 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (1/1) ... [2024-11-16 08:28:43,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:28:43,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:28:43,475 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 08:28:43,482 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 08:28:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:28:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:28:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:28:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:28:43,714 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:28:43,717 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:28:44,896 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L835: havoc main_~node4____CPAchecker_TMP_2~0#1;havoc main_~node4____CPAchecker_TMP_1~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:28:44,897 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1267: havoc main_~node1____CPAchecker_TMP_2~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:28:44,897 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc main_~node3____CPAchecker_TMP_2~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:28:44,898 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L158: havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r212~0#1, main_~init__tmp___2~0#1, main_~init__r232~0#1, main_~init__tmp___3~0#1, main_~init__r242~0#1, main_~init__tmp___4~0#1, main_~init__r312~0#1, main_~init__tmp___5~0#1, main_~init__r322~0#1, main_~init__tmp___6~0#1, main_~init__r342~0#1, main_~init__tmp___7~0#1, main_~init__r412~0#1, main_~init__tmp___8~0#1, main_~init__r422~0#1, main_~init__tmp___9~0#1, main_~init__r432~0#1, main_~init__tmp___10~0#1, main_~init__r123~0#1, main_~init__tmp___11~0#1, main_~init__r133~0#1, main_~init__tmp___12~0#1, main_~init__r143~0#1, main_~init__tmp___13~0#1, main_~init__r213~0#1, main_~init__tmp___14~0#1, main_~init__r233~0#1, main_~init__tmp___15~0#1, main_~init__r243~0#1, main_~init__tmp___16~0#1, main_~init__r313~0#1, main_~init__tmp___17~0#1, main_~init__r323~0#1, main_~init__tmp___18~0#1, main_~init__r343~0#1, main_~init__tmp___19~0#1, main_~init__r413~0#1, main_~init__tmp___20~0#1, main_~init__r423~0#1, main_~init__tmp___21~0#1, main_~init__r433~0#1, main_~init__tmp___22~0#1, main_~init__tmp___23~0#1; [2024-11-16 08:28:44,898 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1123: havoc main_~node2____CPAchecker_TMP_2~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:28:44,898 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L662: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-16 08:28:45,022 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-16 08:28:45,023 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:28:45,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:28:45,054 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:28:45,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:28:45 BoogieIcfgContainer [2024-11-16 08:28:45,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:28:45,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:28:45,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:28:45,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:28:45,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:28:42" (1/3) ... [2024-11-16 08:28:45,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b7bd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:28:45, skipping insertion in model container [2024-11-16 08:28:45,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:28:43" (2/3) ... [2024-11-16 08:28:45,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b7bd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:28:45, skipping insertion in model container [2024-11-16 08:28:45,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:28:45" (3/3) ... [2024-11-16 08:28:45,064 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:28:45,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:28:45,078 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:28:45,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:28:45,165 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;@7dc752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:28:45,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:28:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 398 states, 396 states have (on average 1.621212121212121) internal successors, (642), 397 states have internal predecessors, (642), 0 states have call successors, (0), 0 states 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 08:28:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:28:45,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:45,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:45,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:45,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:45,197 INFO L85 PathProgramCache]: Analyzing trace with hash -455054455, now seen corresponding path program 1 times [2024-11-16 08:28:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:45,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915400737] [2024-11-16 08:28:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:45,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:45,940 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 08:28:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:45,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915400737] [2024-11-16 08:28:45,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915400737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:45,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:45,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819014433] [2024-11-16 08:28:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:45,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:45,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:45,983 INFO L87 Difference]: Start difference. First operand has 398 states, 396 states have (on average 1.621212121212121) internal successors, (642), 397 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 08:28:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:46,140 INFO L93 Difference]: Finished difference Result 728 states and 1148 transitions. [2024-11-16 08:28:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:46,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:28:46,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:46,163 INFO L225 Difference]: With dead ends: 728 [2024-11-16 08:28:46,163 INFO L226 Difference]: Without dead ends: 549 [2024-11-16 08:28:46,168 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 08:28:46,172 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 251 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:46,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1217 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:28:46,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-16 08:28:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 546. [2024-11-16 08:28:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.5357798165137615) internal successors, (837), 545 states have internal predecessors, (837), 0 states have call successors, (0), 0 states 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 08:28:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 837 transitions. [2024-11-16 08:28:46,250 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 837 transitions. Word has length 102 [2024-11-16 08:28:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:46,252 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 837 transitions. [2024-11-16 08:28:46,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 08:28:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 837 transitions. [2024-11-16 08:28:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:28:46,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:46,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:46,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:28:46,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:46,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1920417301, now seen corresponding path program 1 times [2024-11-16 08:28:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64710922] [2024-11-16 08:28:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:46,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:46,577 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 08:28:46,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64710922] [2024-11-16 08:28:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64710922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:46,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:46,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:46,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349088534] [2024-11-16 08:28:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:46,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:46,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:46,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:46,586 INFO L87 Difference]: Start difference. First operand 546 states and 837 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:28:46,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:46,643 INFO L93 Difference]: Finished difference Result 1164 states and 1781 transitions. [2024-11-16 08:28:46,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:46,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-16 08:28:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:46,652 INFO L225 Difference]: With dead ends: 1164 [2024-11-16 08:28:46,653 INFO L226 Difference]: Without dead ends: 843 [2024-11-16 08:28:46,655 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 08:28:46,659 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 228 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:46,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1182 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:46,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-16 08:28:46,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 839. [2024-11-16 08:28:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 1.529832935560859) internal successors, (1282), 838 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states 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 08:28:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1282 transitions. [2024-11-16 08:28:46,696 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1282 transitions. Word has length 107 [2024-11-16 08:28:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:46,696 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1282 transitions. [2024-11-16 08:28:46,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:28:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1282 transitions. [2024-11-16 08:28:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 08:28:46,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:46,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:46,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:28:46,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:46,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:46,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1320563929, now seen corresponding path program 1 times [2024-11-16 08:28:46,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:46,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397165135] [2024-11-16 08:28:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:46,936 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 08:28:46,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:46,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397165135] [2024-11-16 08:28:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397165135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:46,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:46,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:46,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559412055] [2024-11-16 08:28:46,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:46,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:46,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:46,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:46,942 INFO L87 Difference]: Start difference. First operand 839 states and 1282 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 08:28:46,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:46,993 INFO L93 Difference]: Finished difference Result 2019 states and 3076 transitions. [2024-11-16 08:28:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:46,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-16 08:28:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:47,000 INFO L225 Difference]: With dead ends: 2019 [2024-11-16 08:28:47,000 INFO L226 Difference]: Without dead ends: 1405 [2024-11-16 08:28:47,002 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 08:28:47,006 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 219 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:47,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1183 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-11-16 08:28:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1399. [2024-11-16 08:28:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1398 states have (on average 1.5207439198855508) internal successors, (2126), 1398 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states 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 08:28:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 2126 transitions. [2024-11-16 08:28:47,047 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 2126 transitions. Word has length 112 [2024-11-16 08:28:47,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:47,048 INFO L471 AbstractCegarLoop]: Abstraction has 1399 states and 2126 transitions. [2024-11-16 08:28:47,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 08:28:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 2126 transitions. [2024-11-16 08:28:47,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 08:28:47,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:47,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:47,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:28:47,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:47,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 45285491, now seen corresponding path program 1 times [2024-11-16 08:28:47,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:47,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009597207] [2024-11-16 08:28:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:47,242 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 08:28:47,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009597207] [2024-11-16 08:28:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009597207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:47,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:47,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:47,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208006744] [2024-11-16 08:28:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:47,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:47,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:47,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:47,245 INFO L87 Difference]: Start difference. First operand 1399 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 08:28:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:47,301 INFO L93 Difference]: Finished difference Result 3651 states and 5528 transitions. [2024-11-16 08:28:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:47,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 08:28:47,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:47,311 INFO L225 Difference]: With dead ends: 3651 [2024-11-16 08:28:47,311 INFO L226 Difference]: Without dead ends: 2477 [2024-11-16 08:28:47,316 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 08:28:47,317 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 210 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:47,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1184 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2024-11-16 08:28:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2467. [2024-11-16 08:28:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2466 states have (on average 1.5093268450932684) internal successors, (3722), 2466 states have internal predecessors, (3722), 0 states have call successors, (0), 0 states 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 08:28:47,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3722 transitions. [2024-11-16 08:28:47,373 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3722 transitions. Word has length 117 [2024-11-16 08:28:47,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:47,373 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 3722 transitions. [2024-11-16 08:28:47,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 08:28:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3722 transitions. [2024-11-16 08:28:47,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:28:47,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:47,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:47,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:28:47,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:47,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash -477896507, now seen corresponding path program 1 times [2024-11-16 08:28:47,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:47,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360154683] [2024-11-16 08:28:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:47,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:47,663 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 08:28:47,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:47,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360154683] [2024-11-16 08:28:47,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360154683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:47,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:47,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:28:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125228346] [2024-11-16 08:28:47,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:47,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:28:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:28:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:28:47,666 INFO L87 Difference]: Start difference. First operand 2467 states and 3722 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:28:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:48,070 INFO L93 Difference]: Finished difference Result 12823 states and 19498 transitions. [2024-11-16 08:28:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:28:48,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-16 08:28:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:48,107 INFO L225 Difference]: With dead ends: 12823 [2024-11-16 08:28:48,108 INFO L226 Difference]: Without dead ends: 10581 [2024-11-16 08:28:48,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:28:48,116 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 2035 mSDsluCounter, 5224 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:48,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 5839 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:28:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10581 states. [2024-11-16 08:28:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10581 to 4524. [2024-11-16 08:28:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4523 states have (on average 1.5113862480654432) internal successors, (6836), 4523 states have internal predecessors, (6836), 0 states have call successors, (0), 0 states 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 08:28:48,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6836 transitions. [2024-11-16 08:28:48,272 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6836 transitions. Word has length 122 [2024-11-16 08:28:48,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:48,273 INFO L471 AbstractCegarLoop]: Abstraction has 4524 states and 6836 transitions. [2024-11-16 08:28:48,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:28:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6836 transitions. [2024-11-16 08:28:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:28:48,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:48,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:48,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:28:48,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:48,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash 374162065, now seen corresponding path program 1 times [2024-11-16 08:28:48,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:48,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270934762] [2024-11-16 08:28:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:48,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:48,514 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 08:28:48,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:48,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270934762] [2024-11-16 08:28:48,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270934762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:48,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:48,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:28:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820381445] [2024-11-16 08:28:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:48,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:28:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:28:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:28:48,519 INFO L87 Difference]: Start difference. First operand 4524 states and 6836 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 08:28:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:48,650 INFO L93 Difference]: Finished difference Result 13291 states and 20161 transitions. [2024-11-16 08:28:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:28:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-16 08:28:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:48,688 INFO L225 Difference]: With dead ends: 13291 [2024-11-16 08:28:48,688 INFO L226 Difference]: Without dead ends: 8992 [2024-11-16 08:28:48,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:28:48,699 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 749 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:48,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 2024 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:28:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8992 states. [2024-11-16 08:28:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8992 to 6741. [2024-11-16 08:28:48,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6741 states, 6740 states have (on average 1.512166172106825) internal successors, (10192), 6740 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states 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 08:28:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6741 states to 6741 states and 10192 transitions. [2024-11-16 08:28:48,925 INFO L78 Accepts]: Start accepts. Automaton has 6741 states and 10192 transitions. Word has length 124 [2024-11-16 08:28:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:48,925 INFO L471 AbstractCegarLoop]: Abstraction has 6741 states and 10192 transitions. [2024-11-16 08:28:48,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 08:28:48,926 INFO L276 IsEmpty]: Start isEmpty. Operand 6741 states and 10192 transitions. [2024-11-16 08:28:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:28:48,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:48,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:48,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:28:48,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:48,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1298689033, now seen corresponding path program 1 times [2024-11-16 08:28:48,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:48,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256421388] [2024-11-16 08:28:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:48,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:49,075 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 08:28:49,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:49,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256421388] [2024-11-16 08:28:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256421388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:49,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313986156] [2024-11-16 08:28:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:49,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:49,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:49,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:49,078 INFO L87 Difference]: Start difference. First operand 6741 states and 10192 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:49,198 INFO L93 Difference]: Finished difference Result 14894 states and 22574 transitions. [2024-11-16 08:28:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:49,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:28:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:49,223 INFO L225 Difference]: With dead ends: 14894 [2024-11-16 08:28:49,224 INFO L226 Difference]: Without dead ends: 10314 [2024-11-16 08:28:49,234 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 08:28:49,235 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 236 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:49,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1372 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10314 states. [2024-11-16 08:28:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10314 to 10312. [2024-11-16 08:28:49,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10312 states, 10311 states have (on average 1.509067985646397) internal successors, (15560), 10311 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states 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 08:28:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10312 states to 10312 states and 15560 transitions. [2024-11-16 08:28:49,407 INFO L78 Accepts]: Start accepts. Automaton has 10312 states and 15560 transitions. Word has length 126 [2024-11-16 08:28:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:49,408 INFO L471 AbstractCegarLoop]: Abstraction has 10312 states and 15560 transitions. [2024-11-16 08:28:49,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10312 states and 15560 transitions. [2024-11-16 08:28:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:28:49,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:49,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:49,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:28:49,411 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:49,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1913852973, now seen corresponding path program 1 times [2024-11-16 08:28:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:49,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567479777] [2024-11-16 08:28:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:49,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:49,584 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 08:28:49,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:49,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567479777] [2024-11-16 08:28:49,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567479777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:49,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:49,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:49,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895945316] [2024-11-16 08:28:49,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:49,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:49,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:49,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:49,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:49,586 INFO L87 Difference]: Start difference. First operand 10312 states and 15560 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:49,666 INFO L93 Difference]: Finished difference Result 19946 states and 30122 transitions. [2024-11-16 08:28:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:49,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:28:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:49,694 INFO L225 Difference]: With dead ends: 19946 [2024-11-16 08:28:49,695 INFO L226 Difference]: Without dead ends: 14479 [2024-11-16 08:28:49,708 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 08:28:49,710 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 227 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:49,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:49,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2024-11-16 08:28:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 14477. [2024-11-16 08:28:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14477 states, 14476 states have (on average 1.504144791378834) internal successors, (21774), 14476 states have internal predecessors, (21774), 0 states have call successors, (0), 0 states 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 08:28:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14477 states to 14477 states and 21774 transitions. [2024-11-16 08:28:50,069 INFO L78 Accepts]: Start accepts. Automaton has 14477 states and 21774 transitions. Word has length 126 [2024-11-16 08:28:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:50,073 INFO L471 AbstractCegarLoop]: Abstraction has 14477 states and 21774 transitions. [2024-11-16 08:28:50,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 14477 states and 21774 transitions. [2024-11-16 08:28:50,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:28:50,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:50,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:50,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:28:50,076 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:50,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:50,076 INFO L85 PathProgramCache]: Analyzing trace with hash -232256393, now seen corresponding path program 1 times [2024-11-16 08:28:50,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:50,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131955458] [2024-11-16 08:28:50,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:50,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:50,200 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 08:28:50,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:50,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131955458] [2024-11-16 08:28:50,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131955458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:50,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:50,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:50,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810078121] [2024-11-16 08:28:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:50,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:50,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:50,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:50,205 INFO L87 Difference]: Start difference. First operand 14477 states and 21774 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:50,319 INFO L93 Difference]: Finished difference Result 27855 states and 41940 transitions. [2024-11-16 08:28:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:28:50,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:50,460 INFO L225 Difference]: With dead ends: 27855 [2024-11-16 08:28:50,460 INFO L226 Difference]: Without dead ends: 20186 [2024-11-16 08:28:50,470 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 08:28:50,471 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 218 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:50,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1323 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:50,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20186 states. [2024-11-16 08:28:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20186 to 20184. [2024-11-16 08:28:50,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20184 states, 20183 states have (on average 1.4987861071198534) internal successors, (30250), 20183 states have internal predecessors, (30250), 0 states have call successors, (0), 0 states 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 08:28:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20184 states to 20184 states and 30250 transitions. [2024-11-16 08:28:50,825 INFO L78 Accepts]: Start accepts. Automaton has 20184 states and 30250 transitions. Word has length 126 [2024-11-16 08:28:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:50,825 INFO L471 AbstractCegarLoop]: Abstraction has 20184 states and 30250 transitions. [2024-11-16 08:28:50,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 20184 states and 30250 transitions. [2024-11-16 08:28:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:28:50,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:50,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:50,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:28:50,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:50,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1775952723, now seen corresponding path program 1 times [2024-11-16 08:28:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:50,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403546808] [2024-11-16 08:28:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:50,993 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 08:28:50,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:50,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403546808] [2024-11-16 08:28:50,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403546808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:50,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:50,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:28:50,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732928479] [2024-11-16 08:28:50,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:50,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:28:50,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:50,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:28:50,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:28:50,996 INFO L87 Difference]: Start difference. First operand 20184 states and 30250 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:51,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:51,154 INFO L93 Difference]: Finished difference Result 38648 states and 57992 transitions. [2024-11-16 08:28:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:28:51,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:28:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:51,216 INFO L225 Difference]: With dead ends: 38648 [2024-11-16 08:28:51,217 INFO L226 Difference]: Without dead ends: 27941 [2024-11-16 08:28:51,241 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 08:28:51,242 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 209 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:51,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:28:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27941 states. [2024-11-16 08:28:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27941 to 27939. [2024-11-16 08:28:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27939 states, 27938 states have (on average 1.4927339108024913) internal successors, (41704), 27938 states have internal predecessors, (41704), 0 states have call successors, (0), 0 states 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 08:28:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27939 states to 27939 states and 41704 transitions. [2024-11-16 08:28:51,811 INFO L78 Accepts]: Start accepts. Automaton has 27939 states and 41704 transitions. Word has length 126 [2024-11-16 08:28:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:51,812 INFO L471 AbstractCegarLoop]: Abstraction has 27939 states and 41704 transitions. [2024-11-16 08:28:51,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 27939 states and 41704 transitions. [2024-11-16 08:28:51,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:28:51,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:51,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:51,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:28:51,814 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:51,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash 884360169, now seen corresponding path program 1 times [2024-11-16 08:28:51,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:51,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570754206] [2024-11-16 08:28:51,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:51,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:28:52,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570754206] [2024-11-16 08:28:52,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570754206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:52,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:52,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:28:52,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881157678] [2024-11-16 08:28:52,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:52,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:28:52,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:28:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:28:52,104 INFO L87 Difference]: Start difference. First operand 27939 states and 41704 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:52,601 INFO L93 Difference]: Finished difference Result 91210 states and 136347 transitions. [2024-11-16 08:28:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:28:52,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:28:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:52,767 INFO L225 Difference]: With dead ends: 91210 [2024-11-16 08:28:52,768 INFO L226 Difference]: Without dead ends: 63561 [2024-11-16 08:28:52,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:28:52,817 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 749 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:52,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 2010 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:28:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63561 states. [2024-11-16 08:28:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63561 to 45661. [2024-11-16 08:28:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45661 states, 45660 states have (on average 1.4883048620236532) internal successors, (67956), 45660 states have internal predecessors, (67956), 0 states have call successors, (0), 0 states 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 08:28:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45661 states to 45661 states and 67956 transitions. [2024-11-16 08:28:53,876 INFO L78 Accepts]: Start accepts. Automaton has 45661 states and 67956 transitions. Word has length 126 [2024-11-16 08:28:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:53,877 INFO L471 AbstractCegarLoop]: Abstraction has 45661 states and 67956 transitions. [2024-11-16 08:28:53,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 08:28:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 45661 states and 67956 transitions. [2024-11-16 08:28:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 08:28:53,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:53,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:53,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:28:53,887 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:53,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:53,887 INFO L85 PathProgramCache]: Analyzing trace with hash 634008493, now seen corresponding path program 1 times [2024-11-16 08:28:53,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:53,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131768587] [2024-11-16 08:28:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:53,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:54,190 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 08:28:54,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131768587] [2024-11-16 08:28:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131768587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:54,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:54,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:28:54,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208245305] [2024-11-16 08:28:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:54,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:28:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:28:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:28:54,194 INFO L87 Difference]: Start difference. First operand 45661 states and 67956 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 08:28:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:54,939 INFO L93 Difference]: Finished difference Result 148418 states and 221215 transitions. [2024-11-16 08:28:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:28:54,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-16 08:28:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:55,322 INFO L225 Difference]: With dead ends: 148418 [2024-11-16 08:28:55,322 INFO L226 Difference]: Without dead ends: 103047 [2024-11-16 08:28:55,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:28:55,366 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 747 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:55,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 2012 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:28:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103047 states. [2024-11-16 08:28:56,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103047 to 74211. [2024-11-16 08:28:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74211 states, 74210 states have (on average 1.4838970489152405) internal successors, (110120), 74210 states have internal predecessors, (110120), 0 states have call successors, (0), 0 states 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 08:28:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74211 states to 74211 states and 110120 transitions. [2024-11-16 08:28:56,784 INFO L78 Accepts]: Start accepts. Automaton has 74211 states and 110120 transitions. Word has length 128 [2024-11-16 08:28:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:28:56,784 INFO L471 AbstractCegarLoop]: Abstraction has 74211 states and 110120 transitions. [2024-11-16 08:28:56,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 08:28:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 74211 states and 110120 transitions. [2024-11-16 08:28:56,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 08:28:56,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:28:56,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:28:56,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:28:56,787 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:28:56,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:28:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1450433267, now seen corresponding path program 1 times [2024-11-16 08:28:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:28:56,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076756310] [2024-11-16 08:28:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:28:56,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:28:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:28:56,984 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 08:28:56,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:28:56,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076756310] [2024-11-16 08:28:56,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076756310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:28:56,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:28:56,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:28:56,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718281949] [2024-11-16 08:28:56,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:28:56,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:28:56,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:28:56,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:28:56,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:28:56,988 INFO L87 Difference]: Start difference. First operand 74211 states and 110120 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 08:28:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:28:58,180 INFO L93 Difference]: Finished difference Result 238490 states and 354411 transitions. [2024-11-16 08:28:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:28:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-16 08:28:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:28:58,605 INFO L225 Difference]: With dead ends: 238490 [2024-11-16 08:28:58,605 INFO L226 Difference]: Without dead ends: 164569 [2024-11-16 08:28:58,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:28:58,699 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 745 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:28:58,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 2014 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:28:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164569 states. [2024-11-16 08:29:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164569 to 119165. [2024-11-16 08:29:00,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119165 states, 119164 states have (on average 1.4795408009130275) internal successors, (176308), 119164 states have internal predecessors, (176308), 0 states have call successors, (0), 0 states 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 08:29:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119165 states to 119165 states and 176308 transitions. [2024-11-16 08:29:01,090 INFO L78 Accepts]: Start accepts. Automaton has 119165 states and 176308 transitions. Word has length 130 [2024-11-16 08:29:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:29:01,090 INFO L471 AbstractCegarLoop]: Abstraction has 119165 states and 176308 transitions. [2024-11-16 08:29:01,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 08:29:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 119165 states and 176308 transitions. [2024-11-16 08:29:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 08:29:01,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:29:01,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:29:01,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:29:01,092 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:29:01,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:29:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1023749367, now seen corresponding path program 1 times [2024-11-16 08:29:01,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:29:01,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267986192] [2024-11-16 08:29:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:29:01,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:29:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:29:01,550 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 08:29:01,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:29:01,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267986192] [2024-11-16 08:29:01,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267986192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:29:01,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:29:01,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:29:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992349253] [2024-11-16 08:29:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:29:01,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:29:01,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:29:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:29:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:29:01,553 INFO L87 Difference]: Start difference. First operand 119165 states and 176308 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 08:29:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:29:02,468 INFO L93 Difference]: Finished difference Result 238042 states and 352180 transitions. [2024-11-16 08:29:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:29:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-16 08:29:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:29:02,677 INFO L225 Difference]: With dead ends: 238042 [2024-11-16 08:29:02,678 INFO L226 Difference]: Without dead ends: 119167 [2024-11-16 08:29:03,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:29:03,222 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 639 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:29:03,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 2327 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:29:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119167 states. [2024-11-16 08:29:04,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119167 to 119165. [2024-11-16 08:29:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119165 states, 119164 states have (on average 1.4742959283004935) internal successors, (175683), 119164 states have internal predecessors, (175683), 0 states have call successors, (0), 0 states 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 08:29:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119165 states to 119165 states and 175683 transitions. [2024-11-16 08:29:04,913 INFO L78 Accepts]: Start accepts. Automaton has 119165 states and 175683 transitions. Word has length 133 [2024-11-16 08:29:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:29:04,913 INFO L471 AbstractCegarLoop]: Abstraction has 119165 states and 175683 transitions. [2024-11-16 08:29:04,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 08:29:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 119165 states and 175683 transitions. [2024-11-16 08:29:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 08:29:04,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:29:04,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:04,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:29:04,915 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:29:04,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:29:04,915 INFO L85 PathProgramCache]: Analyzing trace with hash -592742787, now seen corresponding path program 1 times [2024-11-16 08:29:04,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:29:04,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589807435] [2024-11-16 08:29:04,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:29:04,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:29:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:29:05,255 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 08:29:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:29:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589807435] [2024-11-16 08:29:05,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589807435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:29:05,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:29:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:29:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33835089] [2024-11-16 08:29:05,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:29:05,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:29:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:29:05,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:29:05,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:29:05,258 INFO L87 Difference]: Start difference. First operand 119165 states and 175683 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 08:29:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:29:06,555 INFO L93 Difference]: Finished difference Result 348224 states and 513920 transitions. [2024-11-16 08:29:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:29:06,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-16 08:29:06,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:29:06,935 INFO L225 Difference]: With dead ends: 348224 [2024-11-16 08:29:06,935 INFO L226 Difference]: Without dead ends: 229349 [2024-11-16 08:29:07,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:29:07,054 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 211 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:29:07,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2914 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:29:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229349 states. [2024-11-16 08:29:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229349 to 229347. [2024-11-16 08:29:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229347 states, 229346 states have (on average 1.4678956685531903) internal successors, (336656), 229346 states have internal predecessors, (336656), 0 states have call successors, (0), 0 states 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 08:29:11,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229347 states to 229347 states and 336656 transitions. [2024-11-16 08:29:11,345 INFO L78 Accepts]: Start accepts. Automaton has 229347 states and 336656 transitions. Word has length 140 [2024-11-16 08:29:11,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:29:11,345 INFO L471 AbstractCegarLoop]: Abstraction has 229347 states and 336656 transitions. [2024-11-16 08:29:11,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 08:29:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 229347 states and 336656 transitions. [2024-11-16 08:29:11,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 08:29:11,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:29:11,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:29:11,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:29:11,346 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:29:11,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:29:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash 912511823, now seen corresponding path program 1 times [2024-11-16 08:29:11,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:29:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339835074] [2024-11-16 08:29:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:29:11,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:29:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:29:12,491 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 08:29:12,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:29:12,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339835074] [2024-11-16 08:29:12,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339835074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:29:12,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:29:12,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:29:12,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551889058] [2024-11-16 08:29:12,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:29:12,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:29:12,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:29:12,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:29:12,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:29:12,495 INFO L87 Difference]: Start difference. First operand 229347 states and 336656 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 08:29:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:29:13,208 INFO L93 Difference]: Finished difference Result 248251 states and 357495 transitions. [2024-11-16 08:29:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:29:13,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-16 08:29:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:29:13,678 INFO L225 Difference]: With dead ends: 248251 [2024-11-16 08:29:13,678 INFO L226 Difference]: Without dead ends: 248249 [2024-11-16 08:29:13,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:29:13,767 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:29:13,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2399 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:29:13,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248249 states. [2024-11-16 08:29:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248249 to 248249. [2024-11-16 08:29:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248249 states, 248248 states have (on average 1.4321605813541298) internal successors, (355531), 248248 states have internal predecessors, (355531), 0 states have call successors, (0), 0 states 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 08:29:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248249 states to 248249 states and 355531 transitions. [2024-11-16 08:29:18,395 INFO L78 Accepts]: Start accepts. Automaton has 248249 states and 355531 transitions. Word has length 143 [2024-11-16 08:29:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:29:18,396 INFO L471 AbstractCegarLoop]: Abstraction has 248249 states and 355531 transitions. [2024-11-16 08:29:18,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 08:29:18,396 INFO L276 IsEmpty]: Start isEmpty. Operand 248249 states and 355531 transitions. [2024-11-16 08:29:18,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 08:29:18,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:29:18,403 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:18,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:29:18,403 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:29:18,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:29:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 655301221, now seen corresponding path program 1 times [2024-11-16 08:29:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:29:18,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863144863] [2024-11-16 08:29:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:29:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:29:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:29:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 08:29:18,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:29:18,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863144863] [2024-11-16 08:29:18,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863144863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:29:18,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:29:18,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:29:18,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100874686] [2024-11-16 08:29:18,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:29:18,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:29:18,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:29:18,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:29:18,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:29:18,667 INFO L87 Difference]: Start difference. First operand 248249 states and 355531 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 08:29:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:29:21,160 INFO L93 Difference]: Finished difference Result 682515 states and 978790 transitions. [2024-11-16 08:29:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:29:21,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 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 187 [2024-11-16 08:29:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:29:23,210 INFO L225 Difference]: With dead ends: 682515 [2024-11-16 08:29:23,211 INFO L226 Difference]: Without dead ends: 570013 [2024-11-16 08:29:23,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:29:23,424 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 1487 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:29:23,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 3883 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:29:23,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570013 states. [2024-11-16 08:29:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570013 to 400587. [2024-11-16 08:29:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400587 states, 400586 states have (on average 1.4298827218125447) internal successors, (572791), 400586 states have internal predecessors, (572791), 0 states have call successors, (0), 0 states 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 08:29:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400587 states to 400587 states and 572791 transitions. [2024-11-16 08:29:31,668 INFO L78 Accepts]: Start accepts. Automaton has 400587 states and 572791 transitions. Word has length 187 [2024-11-16 08:29:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:29:31,671 INFO L471 AbstractCegarLoop]: Abstraction has 400587 states and 572791 transitions. [2024-11-16 08:29:31,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 08:29:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 400587 states and 572791 transitions. [2024-11-16 08:29:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 08:29:31,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:29:31,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:31,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:29:31,688 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:29:31,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:29:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash 40137281, now seen corresponding path program 1 times [2024-11-16 08:29:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:29:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583651596] [2024-11-16 08:29:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:29:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:29:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:29:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:29:31,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:29:31,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583651596] [2024-11-16 08:29:31,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583651596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:29:31,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:29:31,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:29:31,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572787078] [2024-11-16 08:29:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:29:31,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:29:31,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:29:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:29:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:29:31,936 INFO L87 Difference]: Start difference. First operand 400587 states and 572791 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)