./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20a3f63356fd659246c00e5ede12e6614dd9fbac2adaea7d2f156fbd054111cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:46:57,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:46:57,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:46:57,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:46:57,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:46:57,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:46:57,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:46:57,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:46:57,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:46:57,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:46:57,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:46:57,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:46:57,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:46:57,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:46:57,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:46:57,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:46:57,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:46:57,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:46:57,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:46:57,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:46:57,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:46:57,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:46:57,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:46:57,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:46:57,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:46:57,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:46:57,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:46:57,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:46:57,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:46:57,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:46:57,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:46:57,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:46:57,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:46:57,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:46:57,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:46:57,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:46:57,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:46:57,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:46:57,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:46:57,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:46:57,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:46:57,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:46:57,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a3f63356fd659246c00e5ede12e6614dd9fbac2adaea7d2f156fbd054111cd [2024-11-16 08:46:57,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:46:57,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:46:57,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:46:57,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:46:57,605 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:46:57,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:46:59,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:46:59,451 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:46:59,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:46:59,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c671d1926/ceb70dc3ddc04eb9833741147c6a1c09/FLAG686d817c7 [2024-11-16 08:46:59,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c671d1926/ceb70dc3ddc04eb9833741147c6a1c09 [2024-11-16 08:46:59,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:46:59,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:46:59,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:46:59,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:46:59,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:46:59,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:46:59" (1/1) ... [2024-11-16 08:46:59,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b07346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:46:59, skipping insertion in model container [2024-11-16 08:46:59,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:46:59" (1/1) ... [2024-11-16 08:46:59,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:46:59,936 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15440,15453] [2024-11-16 08:47:00,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:47:00,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:47:00,122 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15440,15453] [2024-11-16 08:47:00,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:47:00,235 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:47:00,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00 WrapperNode [2024-11-16 08:47:00,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:47:00,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:47:00,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:47:00,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:47:00,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,317 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1344 [2024-11-16 08:47:00,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:47:00,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:47:00,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:47:00,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:47:00,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,373 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 08:47:00,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,409 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:47:00,449 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:47:00,449 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:47:00,450 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:47:00,450 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (1/1) ... [2024-11-16 08:47:00,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:47:00,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:47:00,492 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 08:47:00,494 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 08:47:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:47:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:47:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:47:00,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:47:00,666 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:47:00,669 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:47:01,960 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1327: havoc main_~node2____CPAchecker_TMP_1~2#1;havoc main_~node2____CPAchecker_TMP_0~2#1; [2024-11-16 08:47:01,961 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1039: havoc main_~check__tmp~4#1; [2024-11-16 08:47:01,961 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1207: havoc main_~node3____CPAchecker_TMP_1~2#1;havoc main_~node3____CPAchecker_TMP_0~2#1; [2024-11-16 08:47:01,962 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L916: havoc main_~node1__newmax~4#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1;havoc main_~node3__newmax~3#1;havoc main_~node2__newmax~3#1;havoc main_~node1__newmax~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node3__newmax~2#1;havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node2__newmax~2#1;havoc main_~node1__newmax~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node3__newmax~1#1;havoc main_~node2__newmax~1#1;havoc main_~node1__newmax~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__newmax~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__newmax~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__newmax~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1; [2024-11-16 08:47:01,962 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1447: havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:47:01,962 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~node2__newmax~4#1; [2024-11-16 08:47:01,962 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L990: havoc main_~node3__newmax~4#1; [2024-11-16 08:47:02,122 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-16 08:47:02,123 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:47:02,162 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:47:02,163 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:47:02,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:47:02 BoogieIcfgContainer [2024-11-16 08:47:02,164 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:47:02,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:47:02,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:47:02,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:47:02,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:46:59" (1/3) ... [2024-11-16 08:47:02,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa2a6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:47:02, skipping insertion in model container [2024-11-16 08:47:02,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:00" (2/3) ... [2024-11-16 08:47:02,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa2a6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:47:02, skipping insertion in model container [2024-11-16 08:47:02,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:47:02" (3/3) ... [2024-11-16 08:47:02,176 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:47:02,193 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:47:02,194 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:47:02,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:47:02,296 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;@6d300f69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:47:02,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:47:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 367 states have (on average 1.6948228882833787) internal successors, (622), 368 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:02,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 08:47:02,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:02,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:02,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:02,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash -466749969, now seen corresponding path program 1 times [2024-11-16 08:47:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863301801] [2024-11-16 08:47:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:03,546 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 08:47:03,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:03,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863301801] [2024-11-16 08:47:03,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863301801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:03,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:03,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719386115] [2024-11-16 08:47:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:03,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:03,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:03,600 INFO L87 Difference]: Start difference. First operand has 369 states, 367 states have (on average 1.6948228882833787) internal successors, (622), 368 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 08:47:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:03,831 INFO L93 Difference]: Finished difference Result 1396 states and 2363 transitions. [2024-11-16 08:47:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-11-16 08:47:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:03,859 INFO L225 Difference]: With dead ends: 1396 [2024-11-16 08:47:03,860 INFO L226 Difference]: Without dead ends: 1050 [2024-11-16 08:47:03,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:03,871 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 1232 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:03,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 2219 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:03,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-16 08:47:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 707. [2024-11-16 08:47:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.4121813031161472) internal successors, (997), 706 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 08:47:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 997 transitions. [2024-11-16 08:47:03,982 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 997 transitions. Word has length 163 [2024-11-16 08:47:03,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:03,983 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 997 transitions. [2024-11-16 08:47:03,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 08:47:03,984 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 997 transitions. [2024-11-16 08:47:03,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:47:03,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:03,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:03,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:47:03,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:03,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:03,993 INFO L85 PathProgramCache]: Analyzing trace with hash 382754211, now seen corresponding path program 1 times [2024-11-16 08:47:03,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:03,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381563859] [2024-11-16 08:47:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:04,157 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 08:47:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:04,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381563859] [2024-11-16 08:47:04,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381563859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:04,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:04,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:04,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321741647] [2024-11-16 08:47:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:04,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:04,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:04,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:04,165 INFO L87 Difference]: Start difference. First operand 707 states and 997 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:47:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:04,200 INFO L93 Difference]: Finished difference Result 1383 states and 1945 transitions. [2024-11-16 08:47:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:04,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:47:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:04,204 INFO L225 Difference]: With dead ends: 1383 [2024-11-16 08:47:04,204 INFO L226 Difference]: Without dead ends: 709 [2024-11-16 08:47:04,207 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 08:47:04,208 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:04,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1034 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-16 08:47:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2024-11-16 08:47:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 708 states have (on average 1.4110169491525424) internal successors, (999), 708 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 08:47:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 999 transitions. [2024-11-16 08:47:04,232 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 999 transitions. Word has length 164 [2024-11-16 08:47:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:04,233 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 999 transitions. [2024-11-16 08:47:04,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:47:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 999 transitions. [2024-11-16 08:47:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 08:47:04,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:04,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:04,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:47:04,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:04,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:04,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1937166648, now seen corresponding path program 1 times [2024-11-16 08:47:04,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:04,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157687644] [2024-11-16 08:47:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:04,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:04,919 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 08:47:04,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157687644] [2024-11-16 08:47:04,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157687644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:04,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:04,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497872203] [2024-11-16 08:47:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:04,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:04,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:04,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:04,926 INFO L87 Difference]: Start difference. First operand 709 states and 999 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 08:47:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:04,965 INFO L93 Difference]: Finished difference Result 1403 states and 1975 transitions. [2024-11-16 08:47:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-16 08:47:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:04,972 INFO L225 Difference]: With dead ends: 1403 [2024-11-16 08:47:04,973 INFO L226 Difference]: Without dead ends: 709 [2024-11-16 08:47:04,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:04,977 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 25 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:04,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1632 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:04,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-16 08:47:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 708. [2024-11-16 08:47:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 1.4073550212164074) internal successors, (995), 707 states have internal predecessors, (995), 0 states have call successors, (0), 0 states 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 08:47:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 995 transitions. [2024-11-16 08:47:04,995 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 995 transitions. Word has length 165 [2024-11-16 08:47:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:04,995 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 995 transitions. [2024-11-16 08:47:04,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 08:47:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 995 transitions. [2024-11-16 08:47:04,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:47:04,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:04,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:05,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:47:05,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:05,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash 656578435, now seen corresponding path program 1 times [2024-11-16 08:47:05,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:05,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464032750] [2024-11-16 08:47:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:05,167 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 08:47:05,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:05,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464032750] [2024-11-16 08:47:05,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464032750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:05,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:05,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:05,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131926761] [2024-11-16 08:47:05,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:05,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:05,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:05,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:05,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:05,170 INFO L87 Difference]: Start difference. First operand 708 states and 995 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 08:47:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:05,250 INFO L93 Difference]: Finished difference Result 1871 states and 2632 transitions. [2024-11-16 08:47:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:47:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:05,256 INFO L225 Difference]: With dead ends: 1871 [2024-11-16 08:47:05,256 INFO L226 Difference]: Without dead ends: 1371 [2024-11-16 08:47:05,258 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 08:47:05,259 INFO L432 NwaCegarLoop]: 981 mSDtfsCounter, 438 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:05,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1452 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:05,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-16 08:47:05,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1369. [2024-11-16 08:47:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 1.391812865497076) internal successors, (1904), 1368 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states 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 08:47:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1904 transitions. [2024-11-16 08:47:05,291 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1904 transitions. Word has length 166 [2024-11-16 08:47:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:05,293 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1904 transitions. [2024-11-16 08:47:05,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 08:47:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1904 transitions. [2024-11-16 08:47:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:47:05,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:05,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:05,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:47:05,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:05,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:05,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1226850241, now seen corresponding path program 1 times [2024-11-16 08:47:05,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:05,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571653764] [2024-11-16 08:47:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:05,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:05,806 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 08:47:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:05,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571653764] [2024-11-16 08:47:05,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571653764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:05,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:05,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:05,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671637100] [2024-11-16 08:47:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:05,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:05,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:05,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:05,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:05,808 INFO L87 Difference]: Start difference. First operand 1369 states and 1904 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 08:47:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:05,901 INFO L93 Difference]: Finished difference Result 3257 states and 4519 transitions. [2024-11-16 08:47:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:47:05,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:05,909 INFO L225 Difference]: With dead ends: 3257 [2024-11-16 08:47:05,910 INFO L226 Difference]: Without dead ends: 1945 [2024-11-16 08:47:05,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:05,913 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 917 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:05,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 992 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-11-16 08:47:05,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1943. [2024-11-16 08:47:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1943 states, 1942 states have (on average 1.378475798146241) internal successors, (2677), 1942 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states 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 08:47:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 2677 transitions. [2024-11-16 08:47:05,956 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 2677 transitions. Word has length 166 [2024-11-16 08:47:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:05,957 INFO L471 AbstractCegarLoop]: Abstraction has 1943 states and 2677 transitions. [2024-11-16 08:47:05,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 08:47:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 2677 transitions. [2024-11-16 08:47:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 08:47:05,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:05,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:05,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:47:05,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:05,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash 164633205, now seen corresponding path program 1 times [2024-11-16 08:47:05,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:05,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578748688] [2024-11-16 08:47:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:05,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:06,064 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 08:47:06,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:06,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578748688] [2024-11-16 08:47:06,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578748688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:06,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:06,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:06,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77563882] [2024-11-16 08:47:06,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:06,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:06,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:06,067 INFO L87 Difference]: Start difference. First operand 1943 states and 2677 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:47:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:06,127 INFO L93 Difference]: Finished difference Result 4122 states and 5819 transitions. [2024-11-16 08:47:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:06,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-16 08:47:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:06,137 INFO L225 Difference]: With dead ends: 4122 [2024-11-16 08:47:06,137 INFO L226 Difference]: Without dead ends: 2507 [2024-11-16 08:47:06,140 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 08:47:06,141 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 251 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:06,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1064 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:06,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2024-11-16 08:47:06,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2457. [2024-11-16 08:47:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2456 states have (on average 1.4055374592833876) internal successors, (3452), 2456 states have internal predecessors, (3452), 0 states have call successors, (0), 0 states 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 08:47:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 3452 transitions. [2024-11-16 08:47:06,216 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 3452 transitions. Word has length 169 [2024-11-16 08:47:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:06,216 INFO L471 AbstractCegarLoop]: Abstraction has 2457 states and 3452 transitions. [2024-11-16 08:47:06,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:47:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 3452 transitions. [2024-11-16 08:47:06,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 08:47:06,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:06,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:06,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:47:06,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:06,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash -16787247, now seen corresponding path program 1 times [2024-11-16 08:47:06,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:06,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007888720] [2024-11-16 08:47:06,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:06,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:06,864 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 08:47:06,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:06,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007888720] [2024-11-16 08:47:06,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007888720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:06,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:06,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:47:06,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40108888] [2024-11-16 08:47:06,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:06,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:47:06,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:47:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:47:06,866 INFO L87 Difference]: Start difference. First operand 2457 states and 3452 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:07,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:07,707 INFO L93 Difference]: Finished difference Result 9689 states and 14129 transitions. [2024-11-16 08:47:07,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:47:07,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-16 08:47:07,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:07,737 INFO L225 Difference]: With dead ends: 9689 [2024-11-16 08:47:07,738 INFO L226 Difference]: Without dead ends: 7691 [2024-11-16 08:47:07,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:47:07,745 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 5166 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:07,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 2431 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:47:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7691 states. [2024-11-16 08:47:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7691 to 5633. [2024-11-16 08:47:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5633 states, 5632 states have (on average 1.4343039772727273) internal successors, (8078), 5632 states have internal predecessors, (8078), 0 states have call successors, (0), 0 states 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 08:47:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5633 states to 5633 states and 8078 transitions. [2024-11-16 08:47:07,948 INFO L78 Accepts]: Start accepts. Automaton has 5633 states and 8078 transitions. Word has length 172 [2024-11-16 08:47:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:07,948 INFO L471 AbstractCegarLoop]: Abstraction has 5633 states and 8078 transitions. [2024-11-16 08:47:07,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5633 states and 8078 transitions. [2024-11-16 08:47:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 08:47:07,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:07,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:07,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:47:07,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:07,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash 241378191, now seen corresponding path program 1 times [2024-11-16 08:47:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:07,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627059530] [2024-11-16 08:47:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:08,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:08,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627059530] [2024-11-16 08:47:08,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627059530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:08,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:08,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108811057] [2024-11-16 08:47:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:08,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:08,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:08,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:08,383 INFO L87 Difference]: Start difference. First operand 5633 states and 8078 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:08,524 INFO L93 Difference]: Finished difference Result 10607 states and 15574 transitions. [2024-11-16 08:47:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-16 08:47:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,550 INFO L225 Difference]: With dead ends: 10607 [2024-11-16 08:47:08,550 INFO L226 Difference]: Without dead ends: 6863 [2024-11-16 08:47:08,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:08,558 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 853 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:08,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 966 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2024-11-16 08:47:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 6861. [2024-11-16 08:47:08,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6861 states, 6860 states have (on average 1.4399416909620992) internal successors, (9878), 6860 states have internal predecessors, (9878), 0 states have call successors, (0), 0 states 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 08:47:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6861 states to 6861 states and 9878 transitions. [2024-11-16 08:47:08,734 INFO L78 Accepts]: Start accepts. Automaton has 6861 states and 9878 transitions. Word has length 172 [2024-11-16 08:47:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,734 INFO L471 AbstractCegarLoop]: Abstraction has 6861 states and 9878 transitions. [2024-11-16 08:47:08,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 6861 states and 9878 transitions. [2024-11-16 08:47:08,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 08:47:08,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:47:08,740 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2016385553, now seen corresponding path program 1 times [2024-11-16 08:47:08,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386169505] [2024-11-16 08:47:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:09,165 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 08:47:09,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386169505] [2024-11-16 08:47:09,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386169505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:09,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:09,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538975022] [2024-11-16 08:47:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:09,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:09,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:09,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:09,171 INFO L87 Difference]: Start difference. First operand 6861 states and 9878 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:09,449 INFO L93 Difference]: Finished difference Result 33210 states and 47655 transitions. [2024-11-16 08:47:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-16 08:47:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:09,525 INFO L225 Difference]: With dead ends: 33210 [2024-11-16 08:47:09,526 INFO L226 Difference]: Without dead ends: 26423 [2024-11-16 08:47:09,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:09,548 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 1458 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:09,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 2164 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:09,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26423 states. [2024-11-16 08:47:10,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26423 to 13254. [2024-11-16 08:47:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 1.4246585678714254) internal successors, (18881), 13253 states have internal predecessors, (18881), 0 states have call successors, (0), 0 states 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 08:47:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 18881 transitions. [2024-11-16 08:47:10,153 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 18881 transitions. Word has length 172 [2024-11-16 08:47:10,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:10,154 INFO L471 AbstractCegarLoop]: Abstraction has 13254 states and 18881 transitions. [2024-11-16 08:47:10,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 08:47:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 18881 transitions. [2024-11-16 08:47:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 08:47:10,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:10,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:10,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:47:10,163 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:10,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1122397875, now seen corresponding path program 1 times [2024-11-16 08:47:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:10,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23695993] [2024-11-16 08:47:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:10,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:10,253 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 08:47:10,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:10,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23695993] [2024-11-16 08:47:10,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23695993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:10,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:10,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:10,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495385421] [2024-11-16 08:47:10,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:10,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:10,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:10,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:10,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:10,257 INFO L87 Difference]: Start difference. First operand 13254 states and 18881 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 08:47:10,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:10,472 INFO L93 Difference]: Finished difference Result 26409 states and 37621 transitions. [2024-11-16 08:47:10,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:10,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-16 08:47:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:10,503 INFO L225 Difference]: With dead ends: 26409 [2024-11-16 08:47:10,503 INFO L226 Difference]: Without dead ends: 13264 [2024-11-16 08:47:10,518 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 08:47:10,519 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:10,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1014 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13264 states. [2024-11-16 08:47:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13264 to 13264. [2024-11-16 08:47:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13264 states, 13263 states have (on average 1.4243383849807736) internal successors, (18891), 13263 states have internal predecessors, (18891), 0 states have call successors, (0), 0 states 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 08:47:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13264 states to 13264 states and 18891 transitions. [2024-11-16 08:47:10,841 INFO L78 Accepts]: Start accepts. Automaton has 13264 states and 18891 transitions. Word has length 173 [2024-11-16 08:47:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:10,841 INFO L471 AbstractCegarLoop]: Abstraction has 13264 states and 18891 transitions. [2024-11-16 08:47:10,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 08:47:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 13264 states and 18891 transitions. [2024-11-16 08:47:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 08:47:10,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:10,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:10,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:47:10,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:10,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash 983565530, now seen corresponding path program 1 times [2024-11-16 08:47:10,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:10,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996042396] [2024-11-16 08:47:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:11,360 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 08:47:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996042396] [2024-11-16 08:47:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996042396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:11,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:11,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:11,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125839252] [2024-11-16 08:47:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:11,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:11,363 INFO L87 Difference]: Start difference. First operand 13264 states and 18891 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 08:47:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:11,500 INFO L93 Difference]: Finished difference Result 26459 states and 37687 transitions. [2024-11-16 08:47:11,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:11,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-16 08:47:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:11,531 INFO L225 Difference]: With dead ends: 26459 [2024-11-16 08:47:11,532 INFO L226 Difference]: Without dead ends: 13254 [2024-11-16 08:47:11,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:11,551 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 18 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:11,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1586 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13254 states. [2024-11-16 08:47:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13254 to 13254. [2024-11-16 08:47:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 1.423904021730929) internal successors, (18871), 13253 states have internal predecessors, (18871), 0 states have call successors, (0), 0 states 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 08:47:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 18871 transitions. [2024-11-16 08:47:11,879 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 18871 transitions. Word has length 174 [2024-11-16 08:47:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:11,879 INFO L471 AbstractCegarLoop]: Abstraction has 13254 states and 18871 transitions. [2024-11-16 08:47:11,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 08:47:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 18871 transitions. [2024-11-16 08:47:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 08:47:11,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:11,888 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:11,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:47:11,888 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:11,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:11,889 INFO L85 PathProgramCache]: Analyzing trace with hash -473421101, now seen corresponding path program 1 times [2024-11-16 08:47:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:11,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428650490] [2024-11-16 08:47:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:11,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:11,993 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 08:47:11,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:11,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428650490] [2024-11-16 08:47:11,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428650490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:11,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:11,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755614957] [2024-11-16 08:47:11,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:11,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:11,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:11,996 INFO L87 Difference]: Start difference. First operand 13254 states and 18871 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 08:47:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:12,157 INFO L93 Difference]: Finished difference Result 32124 states and 45868 transitions. [2024-11-16 08:47:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:12,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-11-16 08:47:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:12,200 INFO L225 Difference]: With dead ends: 32124 [2024-11-16 08:47:12,200 INFO L226 Difference]: Without dead ends: 19724 [2024-11-16 08:47:12,220 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 08:47:12,220 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 418 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:12,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1402 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:12,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19724 states. [2024-11-16 08:47:12,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19724 to 19722. [2024-11-16 08:47:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19722 states, 19721 states have (on average 1.4123016074235586) internal successors, (27852), 19721 states have internal predecessors, (27852), 0 states have call successors, (0), 0 states 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 08:47:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19722 states to 19722 states and 27852 transitions. [2024-11-16 08:47:12,889 INFO L78 Accepts]: Start accepts. Automaton has 19722 states and 27852 transitions. Word has length 175 [2024-11-16 08:47:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:12,889 INFO L471 AbstractCegarLoop]: Abstraction has 19722 states and 27852 transitions. [2024-11-16 08:47:12,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 08:47:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 19722 states and 27852 transitions. [2024-11-16 08:47:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 08:47:12,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:12,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:12,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:47:12,902 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:12,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1285765655, now seen corresponding path program 1 times [2024-11-16 08:47:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454023982] [2024-11-16 08:47:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:13,052 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 08:47:13,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:13,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454023982] [2024-11-16 08:47:13,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454023982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:13,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:13,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:13,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801594508] [2024-11-16 08:47:13,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:13,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:13,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:13,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:13,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:13,055 INFO L87 Difference]: Start difference. First operand 19722 states and 27852 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 08:47:13,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:13,400 INFO L93 Difference]: Finished difference Result 51792 states and 73848 transitions. [2024-11-16 08:47:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-16 08:47:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:13,486 INFO L225 Difference]: With dead ends: 51792 [2024-11-16 08:47:13,486 INFO L226 Difference]: Without dead ends: 33124 [2024-11-16 08:47:13,521 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 08:47:13,525 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 326 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:13,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1083 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33124 states. [2024-11-16 08:47:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33124 to 30434. [2024-11-16 08:47:14,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30434 states, 30433 states have (on average 1.4273650313804094) internal successors, (43439), 30433 states have internal predecessors, (43439), 0 states have call successors, (0), 0 states 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 08:47:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30434 states to 30434 states and 43439 transitions. [2024-11-16 08:47:14,315 INFO L78 Accepts]: Start accepts. Automaton has 30434 states and 43439 transitions. Word has length 176 [2024-11-16 08:47:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:14,315 INFO L471 AbstractCegarLoop]: Abstraction has 30434 states and 43439 transitions. [2024-11-16 08:47:14,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 08:47:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 30434 states and 43439 transitions. [2024-11-16 08:47:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 08:47:14,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:14,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:14,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:47:14,328 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:14,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1127551044, now seen corresponding path program 1 times [2024-11-16 08:47:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:14,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603184649] [2024-11-16 08:47:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:14,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:14,779 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 08:47:14,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603184649] [2024-11-16 08:47:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603184649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:14,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:14,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:47:14,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285323608] [2024-11-16 08:47:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:14,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:47:14,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:47:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:47:14,783 INFO L87 Difference]: Start difference. First operand 30434 states and 43439 transitions. Second operand has 8 states, 8 states have (on average 22.375) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:47:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:15,780 INFO L93 Difference]: Finished difference Result 109209 states and 156897 transitions. [2024-11-16 08:47:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:47:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.375) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-16 08:47:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:15,995 INFO L225 Difference]: With dead ends: 109209 [2024-11-16 08:47:15,995 INFO L226 Difference]: Without dead ends: 79606 [2024-11-16 08:47:16,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:47:16,050 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 5773 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:16,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5773 Valid, 1342 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:47:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79606 states. [2024-11-16 08:47:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79606 to 36616. [2024-11-16 08:47:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36616 states, 36615 states have (on average 1.420838454185443) internal successors, (52024), 36615 states have internal predecessors, (52024), 0 states have call successors, (0), 0 states 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 08:47:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36616 states to 36616 states and 52024 transitions. [2024-11-16 08:47:17,519 INFO L78 Accepts]: Start accepts. Automaton has 36616 states and 52024 transitions. Word has length 179 [2024-11-16 08:47:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:17,519 INFO L471 AbstractCegarLoop]: Abstraction has 36616 states and 52024 transitions. [2024-11-16 08:47:17,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.375) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:47:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 36616 states and 52024 transitions. [2024-11-16 08:47:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 08:47:17,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:17,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:17,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:47:17,536 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:17,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash -425951170, now seen corresponding path program 1 times [2024-11-16 08:47:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:17,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633952804] [2024-11-16 08:47:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:17,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:18,048 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 08:47:18,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:18,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633952804] [2024-11-16 08:47:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633952804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:18,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:18,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:18,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891066872] [2024-11-16 08:47:18,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:18,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:18,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:18,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:18,055 INFO L87 Difference]: Start difference. First operand 36616 states and 52024 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:47:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:18,685 INFO L93 Difference]: Finished difference Result 89876 states and 127513 transitions. [2024-11-16 08:47:18,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:18,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-16 08:47:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:18,848 INFO L225 Difference]: With dead ends: 89876 [2024-11-16 08:47:18,848 INFO L226 Difference]: Without dead ends: 53471 [2024-11-16 08:47:18,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:18,887 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 425 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:18,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 2082 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53471 states. [2024-11-16 08:47:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53471 to 53468. [2024-11-16 08:47:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53468 states, 53467 states have (on average 1.400751865636748) internal successors, (74894), 53467 states have internal predecessors, (74894), 0 states have call successors, (0), 0 states 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 08:47:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53468 states to 53468 states and 74894 transitions. [2024-11-16 08:47:20,003 INFO L78 Accepts]: Start accepts. Automaton has 53468 states and 74894 transitions. Word has length 179 [2024-11-16 08:47:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:20,004 INFO L471 AbstractCegarLoop]: Abstraction has 53468 states and 74894 transitions. [2024-11-16 08:47:20,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:47:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 53468 states and 74894 transitions. [2024-11-16 08:47:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 08:47:20,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:20,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:20,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:47:20,019 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:20,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1189771187, now seen corresponding path program 1 times [2024-11-16 08:47:20,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:20,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432373225] [2024-11-16 08:47:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:20,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:20,416 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 08:47:20,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:20,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432373225] [2024-11-16 08:47:20,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432373225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:20,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:20,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:20,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65167689] [2024-11-16 08:47:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:20,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:20,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:20,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:20,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:20,419 INFO L87 Difference]: Start difference. First operand 53468 states and 74894 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states 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 08:47:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:21,321 INFO L93 Difference]: Finished difference Result 160467 states and 224689 transitions. [2024-11-16 08:47:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:21,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-16 08:47:21,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:21,602 INFO L225 Difference]: With dead ends: 160467 [2024-11-16 08:47:21,602 INFO L226 Difference]: Without dead ends: 107207 [2024-11-16 08:47:21,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:21,678 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 1353 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:21,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2115 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107207 states. [2024-11-16 08:47:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107207 to 53650. [2024-11-16 08:47:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53650 states, 53649 states have (on average 1.399317787843203) internal successors, (75072), 53649 states have internal predecessors, (75072), 0 states have call successors, (0), 0 states 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 08:47:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53650 states to 53650 states and 75072 transitions. [2024-11-16 08:47:23,916 INFO L78 Accepts]: Start accepts. Automaton has 53650 states and 75072 transitions. Word has length 182 [2024-11-16 08:47:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:23,916 INFO L471 AbstractCegarLoop]: Abstraction has 53650 states and 75072 transitions. [2024-11-16 08:47:23,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states 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 08:47:23,917 INFO L276 IsEmpty]: Start isEmpty. Operand 53650 states and 75072 transitions. [2024-11-16 08:47:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:47:23,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:23,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:23,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:47:23,930 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1752485109, now seen corresponding path program 1 times [2024-11-16 08:47:23,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791096344] [2024-11-16 08:47:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:24,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791096344] [2024-11-16 08:47:24,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791096344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:24,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:24,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:24,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203152191] [2024-11-16 08:47:24,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:24,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:24,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:24,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:24,025 INFO L87 Difference]: Start difference. First operand 53650 states and 75072 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 08:47:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:24,324 INFO L93 Difference]: Finished difference Result 96634 states and 135414 transitions. [2024-11-16 08:47:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2024-11-16 08:47:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:24,435 INFO L225 Difference]: With dead ends: 96634 [2024-11-16 08:47:24,436 INFO L226 Difference]: Without dead ends: 53666 [2024-11-16 08:47:24,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:24,485 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 0 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:24,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 992 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53666 states. [2024-11-16 08:47:25,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53666 to 53666. [2024-11-16 08:47:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53666 states, 53665 states have (on average 1.3991987328799032) internal successors, (75088), 53665 states have internal predecessors, (75088), 0 states have call successors, (0), 0 states 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 08:47:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53666 states to 53666 states and 75088 transitions. [2024-11-16 08:47:25,644 INFO L78 Accepts]: Start accepts. Automaton has 53666 states and 75088 transitions. Word has length 183 [2024-11-16 08:47:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:25,645 INFO L471 AbstractCegarLoop]: Abstraction has 53666 states and 75088 transitions. [2024-11-16 08:47:25,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 08:47:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 53666 states and 75088 transitions. [2024-11-16 08:47:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 08:47:25,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:25,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:25,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:47:25,662 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:25,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1241895114, now seen corresponding path program 1 times [2024-11-16 08:47:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787119873] [2024-11-16 08:47:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:26,065 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 08:47:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787119873] [2024-11-16 08:47:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787119873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:26,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:26,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753332009] [2024-11-16 08:47:26,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:26,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:26,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:26,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:26,069 INFO L87 Difference]: Start difference. First operand 53666 states and 75088 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 08:47:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:26,646 INFO L93 Difference]: Finished difference Result 103792 states and 145314 transitions. [2024-11-16 08:47:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:26,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2024-11-16 08:47:26,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:26,737 INFO L225 Difference]: With dead ends: 103792 [2024-11-16 08:47:26,738 INFO L226 Difference]: Without dead ends: 53660 [2024-11-16 08:47:26,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:26,793 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 1 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:26,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1515 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53660 states. [2024-11-16 08:47:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53660 to 53636. [2024-11-16 08:47:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53636 states, 53635 states have (on average 1.3991609956185327) internal successors, (75044), 53635 states have internal predecessors, (75044), 0 states have call successors, (0), 0 states 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 08:47:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53636 states to 53636 states and 75044 transitions. [2024-11-16 08:47:27,735 INFO L78 Accepts]: Start accepts. Automaton has 53636 states and 75044 transitions. Word has length 184 [2024-11-16 08:47:27,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:27,736 INFO L471 AbstractCegarLoop]: Abstraction has 53636 states and 75044 transitions. [2024-11-16 08:47:27,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 08:47:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 53636 states and 75044 transitions. [2024-11-16 08:47:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-16 08:47:27,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:27,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:27,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:47:27,751 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:27,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:27,752 INFO L85 PathProgramCache]: Analyzing trace with hash -628357035, now seen corresponding path program 1 times [2024-11-16 08:47:27,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:27,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232520485] [2024-11-16 08:47:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:27,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:28,285 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 08:47:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232520485] [2024-11-16 08:47:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232520485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:28,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:28,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59438839] [2024-11-16 08:47:28,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:28,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:28,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:28,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:28,289 INFO L87 Difference]: Start difference. First operand 53636 states and 75044 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states 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 08:47:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:28,627 INFO L93 Difference]: Finished difference Result 96389 states and 134960 transitions. [2024-11-16 08:47:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:28,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2024-11-16 08:47:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:28,682 INFO L225 Difference]: With dead ends: 96389 [2024-11-16 08:47:28,682 INFO L226 Difference]: Without dead ends: 43516 [2024-11-16 08:47:28,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:28,723 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 15 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:28,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1561 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:28,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43516 states. [2024-11-16 08:47:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43516 to 43516. [2024-11-16 08:47:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43516 states, 43515 states have (on average 1.3966448351143284) internal successors, (60775), 43515 states have internal predecessors, (60775), 0 states have call successors, (0), 0 states 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 08:47:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43516 states to 43516 states and 60775 transitions. [2024-11-16 08:47:29,570 INFO L78 Accepts]: Start accepts. Automaton has 43516 states and 60775 transitions. Word has length 185 [2024-11-16 08:47:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:29,570 INFO L471 AbstractCegarLoop]: Abstraction has 43516 states and 60775 transitions. [2024-11-16 08:47:29,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states 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 08:47:29,570 INFO L276 IsEmpty]: Start isEmpty. Operand 43516 states and 60775 transitions. [2024-11-16 08:47:29,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 08:47:29,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:29,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:29,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:47:29,578 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:29,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -566446709, now seen corresponding path program 1 times [2024-11-16 08:47:29,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:29,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181417864] [2024-11-16 08:47:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:29,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181417864] [2024-11-16 08:47:29,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181417864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:29,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:29,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:29,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754319186] [2024-11-16 08:47:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:29,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:29,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:29,672 INFO L87 Difference]: Start difference. First operand 43516 states and 60775 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 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 08:47:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:30,036 INFO L93 Difference]: Finished difference Result 106395 states and 149590 transitions. [2024-11-16 08:47:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 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 186 [2024-11-16 08:47:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:30,143 INFO L225 Difference]: With dead ends: 106395 [2024-11-16 08:47:30,143 INFO L226 Difference]: Without dead ends: 70170 [2024-11-16 08:47:30,184 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 08:47:30,185 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 315 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:30,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1047 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70170 states. [2024-11-16 08:47:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70170 to 65204. [2024-11-16 08:47:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65204 states, 65203 states have (on average 1.4089995859086237) internal successors, (91871), 65203 states have internal predecessors, (91871), 0 states have call successors, (0), 0 states 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 08:47:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65204 states to 65204 states and 91871 transitions. [2024-11-16 08:47:31,598 INFO L78 Accepts]: Start accepts. Automaton has 65204 states and 91871 transitions. Word has length 186 [2024-11-16 08:47:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:31,599 INFO L471 AbstractCegarLoop]: Abstraction has 65204 states and 91871 transitions. [2024-11-16 08:47:31,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 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 08:47:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 65204 states and 91871 transitions. [2024-11-16 08:47:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 08:47:31,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:31,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:31,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:47:31,606 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:31,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2000205301, now seen corresponding path program 1 times [2024-11-16 08:47:31,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:31,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669726356] [2024-11-16 08:47:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:31,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:32,125 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 08:47:32,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:32,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669726356] [2024-11-16 08:47:32,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669726356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:32,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:32,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:47:32,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286627798] [2024-11-16 08:47:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:32,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:47:32,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:32,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:47:32,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:47:32,129 INFO L87 Difference]: Start difference. First operand 65204 states and 91871 transitions. Second operand has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 08:47:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:34,092 INFO L93 Difference]: Finished difference Result 344324 states and 485987 transitions. [2024-11-16 08:47:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:47:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2024-11-16 08:47:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:34,652 INFO L225 Difference]: With dead ends: 344324 [2024-11-16 08:47:34,652 INFO L226 Difference]: Without dead ends: 280187 [2024-11-16 08:47:34,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:47:34,741 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 5232 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5232 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:34,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5232 Valid, 2407 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:47:34,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280187 states. [2024-11-16 08:47:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280187 to 167300. [2024-11-16 08:47:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167300 states, 167299 states have (on average 1.4034453284239594) internal successors, (234795), 167299 states have internal predecessors, (234795), 0 states have call successors, (0), 0 states 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 08:47:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167300 states to 167300 states and 234795 transitions. [2024-11-16 08:47:38,733 INFO L78 Accepts]: Start accepts. Automaton has 167300 states and 234795 transitions. Word has length 188 [2024-11-16 08:47:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:38,733 INFO L471 AbstractCegarLoop]: Abstraction has 167300 states and 234795 transitions. [2024-11-16 08:47:38,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 08:47:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 167300 states and 234795 transitions. [2024-11-16 08:47:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 08:47:38,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:38,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:38,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:47:38,749 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:38,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:38,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1781350583, now seen corresponding path program 1 times [2024-11-16 08:47:38,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:38,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607567721] [2024-11-16 08:47:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:38,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:39,844 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 08:47:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:39,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607567721] [2024-11-16 08:47:39,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607567721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:39,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:39,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:39,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537388909] [2024-11-16 08:47:39,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:39,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:39,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:39,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:39,846 INFO L87 Difference]: Start difference. First operand 167300 states and 234795 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 08:47:40,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:40,781 INFO L93 Difference]: Finished difference Result 380548 states and 538071 transitions. [2024-11-16 08:47:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:40,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2024-11-16 08:47:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:41,932 INFO L225 Difference]: With dead ends: 380548 [2024-11-16 08:47:41,932 INFO L226 Difference]: Without dead ends: 226168 [2024-11-16 08:47:42,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:42,046 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 862 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:42,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 910 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:42,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226168 states. [2024-11-16 08:47:45,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226168 to 226166. [2024-11-16 08:47:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226166 states, 226165 states have (on average 1.4034753388013177) internal successors, (317417), 226165 states have internal predecessors, (317417), 0 states have call successors, (0), 0 states 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 08:47:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226166 states to 226166 states and 317417 transitions. [2024-11-16 08:47:46,518 INFO L78 Accepts]: Start accepts. Automaton has 226166 states and 317417 transitions. Word has length 188 [2024-11-16 08:47:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 226166 states and 317417 transitions. [2024-11-16 08:47:46,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 08:47:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 226166 states and 317417 transitions. [2024-11-16 08:47:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 08:47:46,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:46,548 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:46,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:47:46,548 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:46,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:46,549 INFO L85 PathProgramCache]: Analyzing trace with hash 925268811, now seen corresponding path program 1 times [2024-11-16 08:47:46,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:46,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767950518] [2024-11-16 08:47:46,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:46,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:46,800 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 08:47:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:46,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767950518] [2024-11-16 08:47:46,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767950518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:46,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:46,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569290190] [2024-11-16 08:47:46,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:46,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:46,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:46,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:46,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:46,803 INFO L87 Difference]: Start difference. First operand 226166 states and 317417 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 08:47:49,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:49,590 INFO L93 Difference]: Finished difference Result 717243 states and 1011531 transitions. [2024-11-16 08:47:49,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:49,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2024-11-16 08:47:49,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:50,997 INFO L225 Difference]: With dead ends: 717243 [2024-11-16 08:47:50,997 INFO L226 Difference]: Without dead ends: 605543 [2024-11-16 08:47:51,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:47:51,228 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1139 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:51,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1593 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605543 states.