./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 ce3d89c4e43f4d0219f61e0b9736ebe6ae1c3db34abb7076d5d104c6a1ee4d28 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:48:56,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:48:56,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:48:56,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:48:56,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:48:56,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:48:56,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:48:56,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:48:56,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:48:56,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:48:56,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:48:56,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:48:56,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:48:56,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:48:56,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:48:56,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:48:56,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:48:56,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:48:56,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:48:56,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:48:56,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:48:56,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:48:56,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:48:56,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:48:56,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:48:56,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:48:56,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:48:56,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:48:56,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:48:56,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:48:56,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:48:56,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:48:56,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:48:56,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:48:56,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:48:56,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:48:56,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:48:56,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:48:56,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:48:56,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:48:56,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:48:56,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:48:56,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:48:56,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:48:56,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:48:56,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:48:56,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:48:56,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:48:56,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:48:56,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:48:56,370 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:48:56,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:48:56,372 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:48:56,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:48:56,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:48:56,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:48:56,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:48:56,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:48:56,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:48:56,373 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:48:56,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:48:56,374 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:48:56,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:48:56,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:48:56,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:48:56,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:48:56,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:56,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:48:56,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:48:56,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:48:56,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:48:56,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:48:56,378 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:48:56,379 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:48:56,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:48:56,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce3d89c4e43f4d0219f61e0b9736ebe6ae1c3db34abb7076d5d104c6a1ee4d28 [2022-11-18 18:48:56,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:48:56,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:48:56,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:48:56,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:48:56,675 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:48:56,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-18 18:48:56,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/data/ae53b963d/0a3dec8a27c84f8ab3766ba646433063/FLAG83fc0f6e4 [2022-11-18 18:48:57,574 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:48:57,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-18 18:48:57,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/data/ae53b963d/0a3dec8a27c84f8ab3766ba646433063/FLAG83fc0f6e4 [2022-11-18 18:48:57,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/data/ae53b963d/0a3dec8a27c84f8ab3766ba646433063 [2022-11-18 18:48:57,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:48:57,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:48:57,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:48:57,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:48:57,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:48:57,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:57" (1/1) ... [2022-11-18 18:48:57,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c28c394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:57, skipping insertion in model container [2022-11-18 18:48:57,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:57" (1/1) ... [2022-11-18 18:48:57,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:48:57,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:48:58,913 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2022-11-18 18:48:58,953 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2022-11-18 18:48:59,002 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2022-11-18 18:48:59,034 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2022-11-18 18:48:59,107 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2022-11-18 18:48:59,142 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2022-11-18 18:48:59,191 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2022-11-18 18:48:59,234 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2022-11-18 18:48:59,525 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2022-11-18 18:48:59,551 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2022-11-18 18:48:59,592 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2022-11-18 18:48:59,676 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2022-11-18 18:48:59,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:48:59,848 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:49:00,197 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2022-11-18 18:49:00,211 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2022-11-18 18:49:00,237 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2022-11-18 18:49:00,256 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2022-11-18 18:49:00,297 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2022-11-18 18:49:00,316 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2022-11-18 18:49:00,346 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2022-11-18 18:49:00,371 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2022-11-18 18:49:00,552 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2022-11-18 18:49:00,574 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2022-11-18 18:49:00,607 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2022-11-18 18:49:00,677 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2022-11-18 18:49:00,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:00,830 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:49:00,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00 WrapperNode [2022-11-18 18:49:00,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:00,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:00,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:49:00,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:49:00,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:00,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,035 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3808 [2022-11-18 18:49:01,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:01,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:49:01,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:49:01,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:49:01,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:49:01,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:49:01,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:49:01,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:49:01,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (1/1) ... [2022-11-18 18:49:01,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:01,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:49:01,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:49:01,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ec13cb-3688-492a-a047-bcdbac85f1f9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:49:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:49:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:49:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:49:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:49:01,541 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:49:01,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:49:04,834 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:49:04,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:49:04,859 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:49:04,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:04 BoogieIcfgContainer [2022-11-18 18:49:04,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:49:04,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:49:04,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:49:04,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:49:04,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:48:57" (1/3) ... [2022-11-18 18:49:04,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499b554c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:04, skipping insertion in model container [2022-11-18 18:49:04,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:00" (2/3) ... [2022-11-18 18:49:04,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499b554c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:04, skipping insertion in model container [2022-11-18 18:49:04,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:04" (3/3) ... [2022-11-18 18:49:04,875 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-18 18:49:04,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:49:04,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-18 18:49:05,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:05,082 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@34337838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:05,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 18:49:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 905 states, 892 states have (on average 1.8307174887892377) internal successors, (1633), 904 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:05,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-18 18:49:05,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:05,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:05,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:05,134 INFO L85 PathProgramCache]: Analyzing trace with hash 313892332, now seen corresponding path program 1 times [2022-11-18 18:49:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:05,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512014075] [2022-11-18 18:49:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:05,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:06,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:06,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512014075] [2022-11-18 18:49:06,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512014075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:06,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:06,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:06,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103349208] [2022-11-18 18:49:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:06,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:06,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:06,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:06,544 INFO L87 Difference]: Start difference. First operand has 905 states, 892 states have (on average 1.8307174887892377) internal successors, (1633), 904 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:07,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:07,081 INFO L93 Difference]: Finished difference Result 1560 states and 2794 transitions. [2022-11-18 18:49:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:07,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2022-11-18 18:49:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:07,120 INFO L225 Difference]: With dead ends: 1560 [2022-11-18 18:49:07,121 INFO L226 Difference]: Without dead ends: 1306 [2022-11-18 18:49:07,128 INFO L412 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 [2022-11-18 18:49:07,133 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 857 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:07,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 2955 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:49:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2022-11-18 18:49:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1304. [2022-11-18 18:49:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1292 states have (on average 1.5472136222910218) internal successors, (1999), 1303 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1999 transitions. [2022-11-18 18:49:07,300 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1999 transitions. Word has length 298 [2022-11-18 18:49:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:07,302 INFO L495 AbstractCegarLoop]: Abstraction has 1304 states and 1999 transitions. [2022-11-18 18:49:07,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1999 transitions. [2022-11-18 18:49:07,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-18 18:49:07,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:07,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:07,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:49:07,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:07,314 INFO L85 PathProgramCache]: Analyzing trace with hash 489895204, now seen corresponding path program 1 times [2022-11-18 18:49:07,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:07,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77911272] [2022-11-18 18:49:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:07,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:07,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:07,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77911272] [2022-11-18 18:49:07,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77911272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:07,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:07,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:07,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339655693] [2022-11-18 18:49:07,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:07,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:07,731 INFO L87 Difference]: Start difference. First operand 1304 states and 1999 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:08,071 INFO L93 Difference]: Finished difference Result 2483 states and 3850 transitions. [2022-11-18 18:49:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2022-11-18 18:49:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:08,088 INFO L225 Difference]: With dead ends: 2483 [2022-11-18 18:49:08,089 INFO L226 Difference]: Without dead ends: 2130 [2022-11-18 18:49:08,095 INFO L412 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 [2022-11-18 18:49:08,098 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 711 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:08,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2532 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:49:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-11-18 18:49:08,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2128. [2022-11-18 18:49:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2116 states have (on average 1.54820415879017) internal successors, (3276), 2127 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3276 transitions. [2022-11-18 18:49:08,236 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3276 transitions. Word has length 298 [2022-11-18 18:49:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:08,238 INFO L495 AbstractCegarLoop]: Abstraction has 2128 states and 3276 transitions. [2022-11-18 18:49:08,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3276 transitions. [2022-11-18 18:49:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-18 18:49:08,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:08,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:08,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:49:08,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:08,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash -804247836, now seen corresponding path program 1 times [2022-11-18 18:49:08,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:08,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576185051] [2022-11-18 18:49:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:08,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:08,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576185051] [2022-11-18 18:49:08,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576185051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:08,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:08,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:08,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197334805] [2022-11-18 18:49:08,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:08,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:08,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:08,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:08,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:08,663 INFO L87 Difference]: Start difference. First operand 2128 states and 3276 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:09,206 INFO L93 Difference]: Finished difference Result 4387 states and 6841 transitions. [2022-11-18 18:49:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:09,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2022-11-18 18:49:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:09,225 INFO L225 Difference]: With dead ends: 4387 [2022-11-18 18:49:09,225 INFO L226 Difference]: Without dead ends: 3818 [2022-11-18 18:49:09,228 INFO L412 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 [2022-11-18 18:49:09,232 INFO L413 NwaCegarLoop]: 1482 mSDtfsCounter, 753 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:09,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2523 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:49:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-11-18 18:49:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3816. [2022-11-18 18:49:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 3804 states have (on average 1.5499474237644584) internal successors, (5896), 3815 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5896 transitions. [2022-11-18 18:49:09,488 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5896 transitions. Word has length 298 [2022-11-18 18:49:09,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:09,489 INFO L495 AbstractCegarLoop]: Abstraction has 3816 states and 5896 transitions. [2022-11-18 18:49:09,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5896 transitions. [2022-11-18 18:49:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-18 18:49:09,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:09,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:09,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:49:09,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash -804678812, now seen corresponding path program 1 times [2022-11-18 18:49:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:09,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864963276] [2022-11-18 18:49:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:09,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:10,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864963276] [2022-11-18 18:49:10,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864963276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:10,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:10,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:49:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898633563] [2022-11-18 18:49:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:10,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:49:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:49:10,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:49:10,686 INFO L87 Difference]: Start difference. First operand 3816 states and 5896 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:11,446 INFO L93 Difference]: Finished difference Result 11293 states and 17433 transitions. [2022-11-18 18:49:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:49:11,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2022-11-18 18:49:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:11,477 INFO L225 Difference]: With dead ends: 11293 [2022-11-18 18:49:11,477 INFO L226 Difference]: Without dead ends: 7488 [2022-11-18 18:49:11,482 INFO L412 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 [2022-11-18 18:49:11,483 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 2915 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:11,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2915 Valid, 3663 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:49:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-11-18 18:49:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7312. [2022-11-18 18:49:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 7300 states have (on average 1.5410958904109588) internal successors, (11250), 7311 states have internal predecessors, (11250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 11250 transitions. [2022-11-18 18:49:12,160 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 11250 transitions. Word has length 298 [2022-11-18 18:49:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:12,160 INFO L495 AbstractCegarLoop]: Abstraction has 7312 states and 11250 transitions. [2022-11-18 18:49:12,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 11250 transitions. [2022-11-18 18:49:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-18 18:49:12,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:12,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:12,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:49:12,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:12,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1657568652, now seen corresponding path program 1 times [2022-11-18 18:49:12,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:12,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032622382] [2022-11-18 18:49:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:12,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:12,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:12,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032622382] [2022-11-18 18:49:12,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032622382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:12,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:12,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517283077] [2022-11-18 18:49:12,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:12,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:12,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:12,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:12,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:12,398 INFO L87 Difference]: Start difference. First operand 7312 states and 11250 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:13,645 INFO L93 Difference]: Finished difference Result 21532 states and 33072 transitions. [2022-11-18 18:49:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:13,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2022-11-18 18:49:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:13,707 INFO L225 Difference]: With dead ends: 21532 [2022-11-18 18:49:13,707 INFO L226 Difference]: Without dead ends: 14345 [2022-11-18 18:49:13,718 INFO L412 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 [2022-11-18 18:49:13,719 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 1236 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:13,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 3937 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:49:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2022-11-18 18:49:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 14169. [2022-11-18 18:49:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14169 states, 14157 states have (on average 1.5314685314685315) internal successors, (21681), 14168 states have internal predecessors, (21681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14169 states to 14169 states and 21681 transitions. [2022-11-18 18:49:15,103 INFO L78 Accepts]: Start accepts. Automaton has 14169 states and 21681 transitions. Word has length 300 [2022-11-18 18:49:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:15,104 INFO L495 AbstractCegarLoop]: Abstraction has 14169 states and 21681 transitions. [2022-11-18 18:49:15,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 14169 states and 21681 transitions. [2022-11-18 18:49:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-18 18:49:15,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:15,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:15,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:49:15,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:15,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1963409337, now seen corresponding path program 1 times [2022-11-18 18:49:15,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:15,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320600571] [2022-11-18 18:49:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:15,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:15,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320600571] [2022-11-18 18:49:15,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320600571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:15,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:15,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:15,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677725991] [2022-11-18 18:49:15,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:15,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:15,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:15,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:15,309 INFO L87 Difference]: Start difference. First operand 14169 states and 21681 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:17,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:17,643 INFO L93 Difference]: Finished difference Result 42440 states and 64927 transitions. [2022-11-18 18:49:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:17,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2022-11-18 18:49:17,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:17,743 INFO L225 Difference]: With dead ends: 42440 [2022-11-18 18:49:17,743 INFO L226 Difference]: Without dead ends: 28309 [2022-11-18 18:49:17,770 INFO L412 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 [2022-11-18 18:49:17,771 INFO L413 NwaCegarLoop]: 2728 mSDtfsCounter, 1361 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:17,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4090 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:49:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28309 states. [2022-11-18 18:49:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28309 to 14188. [2022-11-18 18:49:19,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14188 states, 14176 states have (on average 1.5313910835214446) internal successors, (21709), 14187 states have internal predecessors, (21709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14188 states to 14188 states and 21709 transitions. [2022-11-18 18:49:19,414 INFO L78 Accepts]: Start accepts. Automaton has 14188 states and 21709 transitions. Word has length 300 [2022-11-18 18:49:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:19,414 INFO L495 AbstractCegarLoop]: Abstraction has 14188 states and 21709 transitions. [2022-11-18 18:49:19,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 14188 states and 21709 transitions. [2022-11-18 18:49:19,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-18 18:49:19,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:19,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:19,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:49:19,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:19,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:19,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1162460916, now seen corresponding path program 1 times [2022-11-18 18:49:19,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:19,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565880458] [2022-11-18 18:49:19,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:19,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:19,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:19,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565880458] [2022-11-18 18:49:19,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565880458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:19,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:19,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:19,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890458133] [2022-11-18 18:49:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:19,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:19,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:19,643 INFO L87 Difference]: Start difference. First operand 14188 states and 21709 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:21,854 INFO L93 Difference]: Finished difference Result 42459 states and 64948 transitions. [2022-11-18 18:49:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:21,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 301 [2022-11-18 18:49:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:21,925 INFO L225 Difference]: With dead ends: 42459 [2022-11-18 18:49:21,925 INFO L226 Difference]: Without dead ends: 28327 [2022-11-18 18:49:21,946 INFO L412 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 [2022-11-18 18:49:21,947 INFO L413 NwaCegarLoop]: 2728 mSDtfsCounter, 1356 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:21,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 4090 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:49:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28327 states. [2022-11-18 18:49:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28327 to 14206. [2022-11-18 18:49:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14206 states, 14194 states have (on average 1.5309285613639565) internal successors, (21730), 14205 states have internal predecessors, (21730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14206 states to 14206 states and 21730 transitions. [2022-11-18 18:49:23,345 INFO L78 Accepts]: Start accepts. Automaton has 14206 states and 21730 transitions. Word has length 301 [2022-11-18 18:49:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:23,346 INFO L495 AbstractCegarLoop]: Abstraction has 14206 states and 21730 transitions. [2022-11-18 18:49:23,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 14206 states and 21730 transitions. [2022-11-18 18:49:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-18 18:49:23,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:23,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:23,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:49:23,372 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:23,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:23,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1689931791, now seen corresponding path program 1 times [2022-11-18 18:49:23,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:23,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563693304] [2022-11-18 18:49:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:23,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:23,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563693304] [2022-11-18 18:49:23,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563693304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:23,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:23,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:49:23,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406820075] [2022-11-18 18:49:23,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:23,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:23,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:23,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:23,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:23,617 INFO L87 Difference]: Start difference. First operand 14206 states and 21730 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:26,732 INFO L93 Difference]: Finished difference Result 40191 states and 61339 transitions. [2022-11-18 18:49:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:26,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 302 [2022-11-18 18:49:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:26,802 INFO L225 Difference]: With dead ends: 40191 [2022-11-18 18:49:26,802 INFO L226 Difference]: Without dead ends: 26226 [2022-11-18 18:49:26,822 INFO L412 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 [2022-11-18 18:49:26,823 INFO L413 NwaCegarLoop]: 2673 mSDtfsCounter, 1230 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:26,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 3988 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:49:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26226 states. [2022-11-18 18:49:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26226 to 26050. [2022-11-18 18:49:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26050 states, 26038 states have (on average 1.5183961901835779) internal successors, (39536), 26049 states have internal predecessors, (39536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26050 states to 26050 states and 39536 transitions. [2022-11-18 18:49:28,999 INFO L78 Accepts]: Start accepts. Automaton has 26050 states and 39536 transitions. Word has length 302 [2022-11-18 18:49:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:28,999 INFO L495 AbstractCegarLoop]: Abstraction has 26050 states and 39536 transitions. [2022-11-18 18:49:29,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 26050 states and 39536 transitions. [2022-11-18 18:49:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-18 18:49:29,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:29,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:49:29,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:29,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash 554074796, now seen corresponding path program 1 times [2022-11-18 18:49:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840069850] [2022-11-18 18:49:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:30,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:30,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:30,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840069850] [2022-11-18 18:49:30,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840069850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:30,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:30,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:49:30,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656141859] [2022-11-18 18:49:30,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:30,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:49:30,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:30,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:49:30,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:49:30,029 INFO L87 Difference]: Start difference. First operand 26050 states and 39536 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:35,775 INFO L93 Difference]: Finished difference Result 76819 states and 116431 transitions. [2022-11-18 18:49:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:49:35,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 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 302 [2022-11-18 18:49:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:35,908 INFO L225 Difference]: With dead ends: 76819 [2022-11-18 18:49:35,909 INFO L226 Difference]: Without dead ends: 50824 [2022-11-18 18:49:35,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:49:35,943 INFO L413 NwaCegarLoop]: 2290 mSDtfsCounter, 4291 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:35,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4291 Valid, 3587 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:49:36,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50824 states. [2022-11-18 18:49:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50824 to 50668. [2022-11-18 18:49:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50668 states, 50656 states have (on average 1.50653427037271) internal successors, (76315), 50667 states have internal predecessors, (76315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50668 states to 50668 states and 76315 transitions. [2022-11-18 18:49:40,735 INFO L78 Accepts]: Start accepts. Automaton has 50668 states and 76315 transitions. Word has length 302 [2022-11-18 18:49:40,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:40,735 INFO L495 AbstractCegarLoop]: Abstraction has 50668 states and 76315 transitions. [2022-11-18 18:49:40,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 50668 states and 76315 transitions. [2022-11-18 18:49:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-18 18:49:40,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:40,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:40,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:49:40,795 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-18 18:49:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash 507447066, now seen corresponding path program 1 times [2022-11-18 18:49:40,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:40,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177265230] [2022-11-18 18:49:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:40,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:41,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:41,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177265230] [2022-11-18 18:49:41,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177265230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:41,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:41,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:49:41,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944747149] [2022-11-18 18:49:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:41,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:49:41,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:41,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:49:41,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:49:41,651 INFO L87 Difference]: Start difference. First operand 50668 states and 76315 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:52,095 INFO L93 Difference]: Finished difference Result 149738 states and 225309 transitions. [2022-11-18 18:49:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:49:52,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-18 18:49:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:52,304 INFO L225 Difference]: With dead ends: 149738 [2022-11-18 18:49:52,305 INFO L226 Difference]: Without dead ends: 99267 [2022-11-18 18:49:52,366 INFO L412 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 [2022-11-18 18:49:52,367 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 2862 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:52,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2862 Valid, 3650 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:49:52,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99267 states.