./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN --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 d0b255ca8288d7fec2d600e13b499a216c3c13b3ba13eac2e9a1248f762a9435 --- 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-6b4ec56 [2022-11-20 11:10:48,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:10:48,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:10:48,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:10:48,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:10:48,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:10:48,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:10:48,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:10:48,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:10:48,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:10:48,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:10:48,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:10:48,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:10:48,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:10:48,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:10:48,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:10:48,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:10:48,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:10:48,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:10:48,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:10:48,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:10:48,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:10:48,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:10:48,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:10:48,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:10:48,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:10:48,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:10:48,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:10:48,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:10:48,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:10:48,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:10:48,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:10:48,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:10:48,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:10:48,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:10:48,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:10:48,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:10:48,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:10:48,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:10:48,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:10:48,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:10:48,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:10:48,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:10:48,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:10:48,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:10:48,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:10:48,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:10:48,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:10:48,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:10:48,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:10:48,539 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:10:48,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:10:48,540 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:10:48,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:10:48,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:10:48,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:10:48,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:10:48,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:10:48,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:10:48,543 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:10:48,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:10:48,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:10:48,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:10:48,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:10:48,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:10:48,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:10:48,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:48,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:10:48,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:10:48,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:10:48,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:10:48,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:10:48,547 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:10:48,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:10:48,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:10:48,548 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_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0b255ca8288d7fec2d600e13b499a216c3c13b3ba13eac2e9a1248f762a9435 [2022-11-20 11:10:48,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:10:48,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:10:48,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:10:48,898 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:10:48,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:10:48,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-20 11:10:51,970 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:10:52,583 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:10:52,583 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-20 11:10:52,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/data/287ae82a7/948b3af2e7bf4126a44438acd72b7592/FLAGa457d40c7 [2022-11-20 11:10:52,641 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/data/287ae82a7/948b3af2e7bf4126a44438acd72b7592 [2022-11-20 11:10:52,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:10:52,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:10:52,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:52,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:10:52,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:10:52,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:52" (1/1) ... [2022-11-20 11:10:52,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa9425b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:52, skipping insertion in model container [2022-11-20 11:10:52,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:52" (1/1) ... [2022-11-20 11:10:52,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:10:52,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:10:53,422 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2022-11-20 11:10:53,533 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2022-11-20 11:10:53,581 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2022-11-20 11:10:53,719 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2022-11-20 11:10:53,775 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2022-11-20 11:10:53,837 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2022-11-20 11:10:53,900 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2022-11-20 11:10:54,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:54,258 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:10:54,403 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2022-11-20 11:10:54,468 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2022-11-20 11:10:54,494 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2022-11-20 11:10:54,567 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2022-11-20 11:10:54,604 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2022-11-20 11:10:54,646 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2022-11-20 11:10:54,690 WARN L237 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_f37b3165-caeb-47f8-adf0-0b056cf90539/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2022-11-20 11:10:54,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:54,980 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:10:54,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54 WrapperNode [2022-11-20 11:10:54,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:54,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:54,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:10:54,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:10:54,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,264 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9522 [2022-11-20 11:10:55,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:55,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:10:55,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:10:55,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:10:55,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:10:55,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:10:55,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:10:55,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:10:55,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (1/1) ... [2022-11-20 11:10:55,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:55,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:10:55,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:10:55,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f37b3165-caeb-47f8-adf0-0b056cf90539/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:10:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:10:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:10:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:10:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:10:56,052 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:10:56,054 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:11:00,966 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:11:01,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:11:01,009 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:11:01,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:01 BoogieIcfgContainer [2022-11-20 11:11:01,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:11:01,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:11:01,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:11:01,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:11:01,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:10:52" (1/3) ... [2022-11-20 11:11:01,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed089ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:01, skipping insertion in model container [2022-11-20 11:11:01,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:54" (2/3) ... [2022-11-20 11:11:01,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed089ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:01, skipping insertion in model container [2022-11-20 11:11:01,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:01" (3/3) ... [2022-11-20 11:11:01,033 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-20 11:11:01,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:11:01,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-20 11:11:01,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:11:01,195 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;@6ea128fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:11:01,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:11:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 2046 states, 2038 states have (on average 1.776251226692836) internal successors, (3620), 2045 states have internal predecessors, (3620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 11:11:01,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:01,238 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] [2022-11-20 11:11:01,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1414704703, now seen corresponding path program 1 times [2022-11-20 11:11:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690021821] [2022-11-20 11:11:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:02,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:02,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690021821] [2022-11-20 11:11:02,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690021821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:02,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:02,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:11:02,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367657130] [2022-11-20 11:11:02,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:02,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:11:02,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:02,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:11:02,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:11:02,062 INFO L87 Difference]: Start difference. First operand has 2046 states, 2038 states have (on average 1.776251226692836) internal successors, (3620), 2045 states have internal predecessors, (3620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:05,710 INFO L93 Difference]: Finished difference Result 4026 states and 7029 transitions. [2022-11-20 11:11:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:11:05,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-20 11:11:05,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:05,737 INFO L225 Difference]: With dead ends: 4026 [2022-11-20 11:11:05,738 INFO L226 Difference]: Without dead ends: 2682 [2022-11-20 11:11:05,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:11:05,749 INFO L413 NwaCegarLoop]: 2028 mSDtfsCounter, 12872 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12872 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:05,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12872 Valid, 2665 Invalid, 2112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 11:11:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-11-20 11:11:05,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2676. [2022-11-20 11:11:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2669 states have (on average 1.3012364181341327) internal successors, (3473), 2675 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3473 transitions. [2022-11-20 11:11:05,985 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3473 transitions. Word has length 65 [2022-11-20 11:11:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:05,987 INFO L495 AbstractCegarLoop]: Abstraction has 2676 states and 3473 transitions. [2022-11-20 11:11:05,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3473 transitions. [2022-11-20 11:11:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:11:06,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:06,001 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] [2022-11-20 11:11:06,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:11:06,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1637494150, now seen corresponding path program 1 times [2022-11-20 11:11:06,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:06,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887042088] [2022-11-20 11:11:06,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:06,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:06,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:06,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887042088] [2022-11-20 11:11:06,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887042088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:06,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:06,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:11:06,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853343101] [2022-11-20 11:11:06,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:06,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:11:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:11:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:11:06,365 INFO L87 Difference]: Start difference. First operand 2676 states and 3473 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:08,523 INFO L93 Difference]: Finished difference Result 4522 states and 5883 transitions. [2022-11-20 11:11:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:11:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:11:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:08,535 INFO L225 Difference]: With dead ends: 4522 [2022-11-20 11:11:08,535 INFO L226 Difference]: Without dead ends: 2942 [2022-11-20 11:11:08,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:11:08,540 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 7603 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7603 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:08,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7603 Valid, 1467 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 11:11:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2022-11-20 11:11:08,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2927. [2022-11-20 11:11:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2920 states have (on average 1.3095890410958904) internal successors, (3824), 2926 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3824 transitions. [2022-11-20 11:11:08,724 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3824 transitions. Word has length 66 [2022-11-20 11:11:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:08,726 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 3824 transitions. [2022-11-20 11:11:08,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3824 transitions. [2022-11-20 11:11:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:11:08,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:08,739 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] [2022-11-20 11:11:08,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:11:08,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1316871796, now seen corresponding path program 1 times [2022-11-20 11:11:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328139390] [2022-11-20 11:11:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:08,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:09,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328139390] [2022-11-20 11:11:09,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328139390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:09,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:09,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:11:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944056624] [2022-11-20 11:11:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:09,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:11:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:11:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:11:09,021 INFO L87 Difference]: Start difference. First operand 2927 states and 3824 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:11,316 INFO L93 Difference]: Finished difference Result 6089 states and 7980 transitions. [2022-11-20 11:11:11,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:11:11,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:11:11,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:11,335 INFO L225 Difference]: With dead ends: 6089 [2022-11-20 11:11:11,335 INFO L226 Difference]: Without dead ends: 3983 [2022-11-20 11:11:11,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:11:11,342 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 7349 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7349 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:11,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7349 Valid, 1415 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 11:11:11,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2022-11-20 11:11:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3967. [2022-11-20 11:11:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 3960 states have (on average 1.2924242424242425) internal successors, (5118), 3966 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5118 transitions. [2022-11-20 11:11:11,600 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5118 transitions. Word has length 66 [2022-11-20 11:11:11,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:11,603 INFO L495 AbstractCegarLoop]: Abstraction has 3967 states and 5118 transitions. [2022-11-20 11:11:11,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:11,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5118 transitions. [2022-11-20 11:11:11,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 11:11:11,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:11,614 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] [2022-11-20 11:11:11,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:11:11,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:11,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:11,616 INFO L85 PathProgramCache]: Analyzing trace with hash -247743443, now seen corresponding path program 1 times [2022-11-20 11:11:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:11,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687176566] [2022-11-20 11:11:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:11,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:12,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:12,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687176566] [2022-11-20 11:11:12,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687176566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:12,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:12,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:11:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859271924] [2022-11-20 11:11:12,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:12,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:11:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:11:12,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:11:12,295 INFO L87 Difference]: Start difference. First operand 3967 states and 5118 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:18,009 INFO L93 Difference]: Finished difference Result 7948 states and 10801 transitions. [2022-11-20 11:11:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:11:18,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-20 11:11:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:18,033 INFO L225 Difference]: With dead ends: 7948 [2022-11-20 11:11:18,034 INFO L226 Difference]: Without dead ends: 7151 [2022-11-20 11:11:18,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:11:18,044 INFO L413 NwaCegarLoop]: 1160 mSDtfsCounter, 8827 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8827 SdHoareTripleChecker+Valid, 6120 SdHoareTripleChecker+Invalid, 6194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:18,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8827 Valid, 6120 Invalid, 6194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 6183 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 11:11:18,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2022-11-20 11:11:18,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 3974. [2022-11-20 11:11:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 3967 states have (on average 1.2919082430047895) internal successors, (5125), 3973 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:18,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 5125 transitions. [2022-11-20 11:11:18,401 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 5125 transitions. Word has length 67 [2022-11-20 11:11:18,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:18,401 INFO L495 AbstractCegarLoop]: Abstraction has 3974 states and 5125 transitions. [2022-11-20 11:11:18,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 5125 transitions. [2022-11-20 11:11:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:11:18,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:18,408 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] [2022-11-20 11:11:18,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:11:18,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash 278824295, now seen corresponding path program 1 times [2022-11-20 11:11:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:18,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815855463] [2022-11-20 11:11:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:18,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:18,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:18,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815855463] [2022-11-20 11:11:18,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815855463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:18,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:18,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:11:18,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308373948] [2022-11-20 11:11:18,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:18,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:11:18,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:18,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:11:18,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:11:18,545 INFO L87 Difference]: Start difference. First operand 3974 states and 5125 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:20,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:20,488 INFO L93 Difference]: Finished difference Result 7879 states and 10270 transitions. [2022-11-20 11:11:20,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:11:20,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-20 11:11:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:20,515 INFO L225 Difference]: With dead ends: 7879 [2022-11-20 11:11:20,515 INFO L226 Difference]: Without dead ends: 5328 [2022-11-20 11:11:20,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:11:20,520 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 6410 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6410 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:20,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6410 Valid, 1255 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 11:11:20,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2022-11-20 11:11:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5318. [2022-11-20 11:11:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5311 states have (on average 1.2997552250047073) internal successors, (6903), 5317 states have internal predecessors, (6903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 6903 transitions. [2022-11-20 11:11:21,051 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 6903 transitions. Word has length 68 [2022-11-20 11:11:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:21,051 INFO L495 AbstractCegarLoop]: Abstraction has 5318 states and 6903 transitions. [2022-11-20 11:11:21,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 6903 transitions. [2022-11-20 11:11:21,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:11:21,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:21,059 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] [2022-11-20 11:11:21,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:11:21,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash -775523704, now seen corresponding path program 1 times [2022-11-20 11:11:21,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:21,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219560950] [2022-11-20 11:11:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:21,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:21,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:21,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219560950] [2022-11-20 11:11:21,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219560950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:21,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:21,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:11:21,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018979964] [2022-11-20 11:11:21,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:21,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:11:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:21,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:11:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:11:21,549 INFO L87 Difference]: Start difference. First operand 5318 states and 6903 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:24,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:24,750 INFO L93 Difference]: Finished difference Result 6516 states and 8525 transitions. [2022-11-20 11:11:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:11:24,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-20 11:11:24,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:24,778 INFO L225 Difference]: With dead ends: 6516 [2022-11-20 11:11:24,779 INFO L226 Difference]: Without dead ends: 6510 [2022-11-20 11:11:24,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:11:24,782 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 9066 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9066 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:24,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9066 Valid, 3983 Invalid, 3461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:11:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2022-11-20 11:11:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 5318. [2022-11-20 11:11:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5311 states have (on average 1.2995669365467897) internal successors, (6902), 5317 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 6902 transitions. [2022-11-20 11:11:25,446 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 6902 transitions. Word has length 68 [2022-11-20 11:11:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:25,448 INFO L495 AbstractCegarLoop]: Abstraction has 5318 states and 6902 transitions. [2022-11-20 11:11:25,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 6902 transitions. [2022-11-20 11:11:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:11:25,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:25,455 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] [2022-11-20 11:11:25,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:11:25,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1144324393, now seen corresponding path program 1 times [2022-11-20 11:11:25,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:25,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491154711] [2022-11-20 11:11:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:25,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:26,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:26,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491154711] [2022-11-20 11:11:26,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491154711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:26,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:26,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:11:26,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203467399] [2022-11-20 11:11:26,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:26,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:11:26,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:26,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:11:26,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:11:26,504 INFO L87 Difference]: Start difference. First operand 5318 states and 6902 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:32,204 INFO L93 Difference]: Finished difference Result 16159 states and 22651 transitions. [2022-11-20 11:11:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:11:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-20 11:11:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:32,244 INFO L225 Difference]: With dead ends: 16159 [2022-11-20 11:11:32,244 INFO L226 Difference]: Without dead ends: 16155 [2022-11-20 11:11:32,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:11:32,249 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 13835 mSDsluCounter, 12914 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13835 SdHoareTripleChecker+Valid, 14686 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:32,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13835 Valid, 14686 Invalid, 2864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2846 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:11:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16155 states. [2022-11-20 11:11:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16155 to 5314. [2022-11-20 11:11:33,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5308 states have (on average 1.299359457422758) internal successors, (6897), 5313 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 6897 transitions. [2022-11-20 11:11:33,239 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 6897 transitions. Word has length 68 [2022-11-20 11:11:33,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:33,239 INFO L495 AbstractCegarLoop]: Abstraction has 5314 states and 6897 transitions. [2022-11-20 11:11:33,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 6897 transitions. [2022-11-20 11:11:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:11:33,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:33,252 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] [2022-11-20 11:11:33,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:11:33,253 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:33,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1153297775, now seen corresponding path program 1 times [2022-11-20 11:11:33,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:33,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818450273] [2022-11-20 11:11:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:33,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818450273] [2022-11-20 11:11:33,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818450273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:33,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:33,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:11:33,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510681204] [2022-11-20 11:11:33,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:33,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:11:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:11:33,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:11:33,749 INFO L87 Difference]: Start difference. First operand 5314 states and 6897 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:40,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:40,318 INFO L93 Difference]: Finished difference Result 12221 states and 16966 transitions. [2022-11-20 11:11:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:11:40,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-20 11:11:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:40,341 INFO L225 Difference]: With dead ends: 12221 [2022-11-20 11:11:40,341 INFO L226 Difference]: Without dead ends: 10898 [2022-11-20 11:11:40,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:11:40,346 INFO L413 NwaCegarLoop]: 1163 mSDtfsCounter, 9829 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 5402 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9829 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 5435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:40,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9829 Valid, 6421 Invalid, 5435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 5402 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 11:11:40,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2022-11-20 11:11:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 5293. [2022-11-20 11:11:41,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5287 states have (on average 1.2996027993190846) internal successors, (6871), 5292 states have internal predecessors, (6871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 6871 transitions. [2022-11-20 11:11:41,220 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 6871 transitions. Word has length 69 [2022-11-20 11:11:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:41,221 INFO L495 AbstractCegarLoop]: Abstraction has 5293 states and 6871 transitions. [2022-11-20 11:11:41,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 6871 transitions. [2022-11-20 11:11:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:11:41,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:41,229 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] [2022-11-20 11:11:41,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:11:41,229 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash -770034975, now seen corresponding path program 1 times [2022-11-20 11:11:41,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:41,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824859650] [2022-11-20 11:11:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:41,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:42,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:42,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824859650] [2022-11-20 11:11:42,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824859650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:42,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:42,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:11:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380025425] [2022-11-20 11:11:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:42,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:11:42,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:11:42,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:11:42,008 INFO L87 Difference]: Start difference. First operand 5293 states and 6871 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:47,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:47,475 INFO L93 Difference]: Finished difference Result 14017 states and 19763 transitions. [2022-11-20 11:11:47,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:11:47,476 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-20 11:11:47,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:47,503 INFO L225 Difference]: With dead ends: 14017 [2022-11-20 11:11:47,503 INFO L226 Difference]: Without dead ends: 12670 [2022-11-20 11:11:47,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:11:47,509 INFO L413 NwaCegarLoop]: 2030 mSDtfsCounter, 10701 mSDsluCounter, 10053 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10701 SdHoareTripleChecker+Valid, 12083 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10701 Valid, 12083 Invalid, 1648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:11:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12670 states. [2022-11-20 11:11:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12670 to 5244. [2022-11-20 11:11:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5244 states, 5239 states have (on average 1.3010116434434051) internal successors, (6816), 5243 states have internal predecessors, (6816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5244 states to 5244 states and 6816 transitions. [2022-11-20 11:11:48,881 INFO L78 Accepts]: Start accepts. Automaton has 5244 states and 6816 transitions. Word has length 69 [2022-11-20 11:11:48,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:48,882 INFO L495 AbstractCegarLoop]: Abstraction has 5244 states and 6816 transitions. [2022-11-20 11:11:48,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:11:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5244 states and 6816 transitions. [2022-11-20 11:11:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 11:11:48,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:48,890 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] [2022-11-20 11:11:48,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:11:48,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:11:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -391190939, now seen corresponding path program 1 times [2022-11-20 11:11:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:11:48,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258653313] [2022-11-20 11:11:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:11:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:11:49,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:11:49,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258653313] [2022-11-20 11:11:49,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258653313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:49,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:49,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:11:49,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478077440] [2022-11-20 11:11:49,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:49,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:11:49,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:11:49,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:11:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:11:49,815 INFO L87 Difference]: Start difference. First operand 5244 states and 6816 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:00,057 INFO L93 Difference]: Finished difference Result 19147 states and 26973 transitions. [2022-11-20 11:12:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:12:00,057 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-11-20 11:12:00,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:00,098 INFO L225 Difference]: With dead ends: 19147 [2022-11-20 11:12:00,098 INFO L226 Difference]: Without dead ends: 17821 [2022-11-20 11:12:00,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 11:12:00,105 INFO L413 NwaCegarLoop]: 1850 mSDtfsCounter, 13045 mSDsluCounter, 9521 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13045 SdHoareTripleChecker+Valid, 11371 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:00,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13045 Valid, 11371 Invalid, 2158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 11:12:00,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2022-11-20 11:12:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 5254. [2022-11-20 11:12:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5249 states have (on average 1.301009716136407) internal successors, (6829), 5253 states have internal predecessors, (6829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 6829 transitions. [2022-11-20 11:12:01,730 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 6829 transitions. Word has length 70 [2022-11-20 11:12:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:01,730 INFO L495 AbstractCegarLoop]: Abstraction has 5254 states and 6829 transitions. [2022-11-20 11:12:01,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 6829 transitions. [2022-11-20 11:12:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:12:01,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:01,737 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] [2022-11-20 11:12:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:12:01,737 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:01,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 557449094, now seen corresponding path program 1 times [2022-11-20 11:12:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:01,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207826357] [2022-11-20 11:12:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:01,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:01,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207826357] [2022-11-20 11:12:01,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207826357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:01,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:01,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:01,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202767903] [2022-11-20 11:12:01,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:01,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:01,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:01,816 INFO L87 Difference]: Start difference. First operand 5254 states and 6829 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:03,972 INFO L93 Difference]: Finished difference Result 10481 states and 13784 transitions. [2022-11-20 11:12:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:03,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-20 11:12:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:03,983 INFO L225 Difference]: With dead ends: 10481 [2022-11-20 11:12:03,983 INFO L226 Difference]: Without dead ends: 6397 [2022-11-20 11:12:03,988 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 [2022-11-20 11:12:03,989 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1557 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:03,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2092 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:12:03,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6397 states. [2022-11-20 11:12:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6397 to 6386. [2022-11-20 11:12:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6386 states, 6382 states have (on average 1.3014728925101848) internal successors, (8306), 6385 states have internal predecessors, (8306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6386 states to 6386 states and 8306 transitions. [2022-11-20 11:12:05,946 INFO L78 Accepts]: Start accepts. Automaton has 6386 states and 8306 transitions. Word has length 71 [2022-11-20 11:12:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:05,946 INFO L495 AbstractCegarLoop]: Abstraction has 6386 states and 8306 transitions. [2022-11-20 11:12:05,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6386 states and 8306 transitions. [2022-11-20 11:12:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:12:05,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:05,954 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] [2022-11-20 11:12:05,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:12:05,954 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:05,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -310200981, now seen corresponding path program 1 times [2022-11-20 11:12:05,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:05,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971859798] [2022-11-20 11:12:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:05,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:06,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:06,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971859798] [2022-11-20 11:12:06,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971859798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:06,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:06,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:06,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525874569] [2022-11-20 11:12:06,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:06,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:06,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:06,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:06,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:06,026 INFO L87 Difference]: Start difference. First operand 6386 states and 8306 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:08,233 INFO L93 Difference]: Finished difference Result 10224 states and 13765 transitions. [2022-11-20 11:12:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-20 11:12:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:08,240 INFO L225 Difference]: With dead ends: 10224 [2022-11-20 11:12:08,240 INFO L226 Difference]: Without dead ends: 6205 [2022-11-20 11:12:08,245 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 [2022-11-20 11:12:08,246 INFO L413 NwaCegarLoop]: 1222 mSDtfsCounter, 1194 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:08,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 1677 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:12:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-11-20 11:12:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 6192. [2022-11-20 11:12:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6192 states, 6189 states have (on average 1.341250605913718) internal successors, (8301), 6191 states have internal predecessors, (8301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 8301 transitions. [2022-11-20 11:12:10,424 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 8301 transitions. Word has length 71 [2022-11-20 11:12:10,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:10,424 INFO L495 AbstractCegarLoop]: Abstraction has 6192 states and 8301 transitions. [2022-11-20 11:12:10,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 8301 transitions. [2022-11-20 11:12:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:12:10,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:10,428 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] [2022-11-20 11:12:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:12:10,429 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:10,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1163193954, now seen corresponding path program 1 times [2022-11-20 11:12:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:10,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904657454] [2022-11-20 11:12:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:10,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:10,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904657454] [2022-11-20 11:12:10,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904657454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:10,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:10,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:12:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602817927] [2022-11-20 11:12:10,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:10,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:12:10,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:10,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:12:10,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:12:10,769 INFO L87 Difference]: Start difference. First operand 6192 states and 8301 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:17,761 INFO L93 Difference]: Finished difference Result 10958 states and 14951 transitions. [2022-11-20 11:12:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:12:17,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-20 11:12:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:17,772 INFO L225 Difference]: With dead ends: 10958 [2022-11-20 11:12:17,772 INFO L226 Difference]: Without dead ends: 10949 [2022-11-20 11:12:17,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:12:17,774 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 6846 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6846 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:17,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6846 Valid, 3138 Invalid, 2809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 11:12:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2022-11-20 11:12:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 6192. [2022-11-20 11:12:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6192 states, 6189 states have (on average 1.3410890289222814) internal successors, (8300), 6191 states have internal predecessors, (8300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:19,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 8300 transitions. [2022-11-20 11:12:19,906 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 8300 transitions. Word has length 71 [2022-11-20 11:12:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:19,906 INFO L495 AbstractCegarLoop]: Abstraction has 6192 states and 8300 transitions. [2022-11-20 11:12:19,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 8300 transitions. [2022-11-20 11:12:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 11:12:19,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:19,913 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] [2022-11-20 11:12:19,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:12:19,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:19,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash -143931899, now seen corresponding path program 1 times [2022-11-20 11:12:19,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:19,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231323313] [2022-11-20 11:12:19,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:19,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:20,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:20,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231323313] [2022-11-20 11:12:20,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231323313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:20,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:20,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:12:20,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057194493] [2022-11-20 11:12:20,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:20,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:12:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:20,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:12:20,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:12:20,621 INFO L87 Difference]: Start difference. First operand 6192 states and 8300 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:32,920 INFO L93 Difference]: Finished difference Result 21135 states and 30472 transitions. [2022-11-20 11:12:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:12:32,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-20 11:12:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:32,943 INFO L225 Difference]: With dead ends: 21135 [2022-11-20 11:12:32,944 INFO L226 Difference]: Without dead ends: 21123 [2022-11-20 11:12:32,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:12:32,947 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 8909 mSDsluCounter, 6232 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8909 SdHoareTripleChecker+Valid, 7726 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:32,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8909 Valid, 7726 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:12:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21123 states. [2022-11-20 11:12:35,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21123 to 6180. [2022-11-20 11:12:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6180 states, 6178 states have (on average 1.3415344771770799) internal successors, (8288), 6179 states have internal predecessors, (8288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6180 states to 6180 states and 8288 transitions. [2022-11-20 11:12:35,419 INFO L78 Accepts]: Start accepts. Automaton has 6180 states and 8288 transitions. Word has length 72 [2022-11-20 11:12:35,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:35,419 INFO L495 AbstractCegarLoop]: Abstraction has 6180 states and 8288 transitions. [2022-11-20 11:12:35,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:35,420 INFO L276 IsEmpty]: Start isEmpty. Operand 6180 states and 8288 transitions. [2022-11-20 11:12:35,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 11:12:35,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:35,426 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] [2022-11-20 11:12:35,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:12:35,427 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -694134672, now seen corresponding path program 1 times [2022-11-20 11:12:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:35,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137754197] [2022-11-20 11:12:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:35,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:35,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:35,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137754197] [2022-11-20 11:12:35,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137754197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:35,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:35,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:12:35,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485545502] [2022-11-20 11:12:35,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:35,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:12:35,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:12:35,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:12:35,816 INFO L87 Difference]: Start difference. First operand 6180 states and 8288 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:44,670 INFO L93 Difference]: Finished difference Result 14311 states and 20258 transitions. [2022-11-20 11:12:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:12:44,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-20 11:12:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:44,682 INFO L225 Difference]: With dead ends: 14311 [2022-11-20 11:12:44,682 INFO L226 Difference]: Without dead ends: 11016 [2022-11-20 11:12:44,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:12:44,685 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 6268 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 3518 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6268 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 3526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:44,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6268 Valid, 4124 Invalid, 3526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3518 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:12:44,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11016 states. [2022-11-20 11:12:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11016 to 6180. [2022-11-20 11:12:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6180 states, 6178 states have (on average 1.3413726124959533) internal successors, (8287), 6179 states have internal predecessors, (8287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6180 states to 6180 states and 8287 transitions. [2022-11-20 11:12:47,107 INFO L78 Accepts]: Start accepts. Automaton has 6180 states and 8287 transitions. Word has length 72 [2022-11-20 11:12:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:47,107 INFO L495 AbstractCegarLoop]: Abstraction has 6180 states and 8287 transitions. [2022-11-20 11:12:47,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6180 states and 8287 transitions. [2022-11-20 11:12:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 11:12:47,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:47,114 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] [2022-11-20 11:12:47,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:12:47,115 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:47,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1163331560, now seen corresponding path program 1 times [2022-11-20 11:12:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:47,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934728716] [2022-11-20 11:12:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:47,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:47,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934728716] [2022-11-20 11:12:47,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934728716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:47,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:47,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:47,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857341412] [2022-11-20 11:12:47,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:47,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:47,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:47,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:47,194 INFO L87 Difference]: Start difference. First operand 6180 states and 8287 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:51,365 INFO L93 Difference]: Finished difference Result 11739 states and 16579 transitions. [2022-11-20 11:12:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:51,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-20 11:12:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:51,373 INFO L225 Difference]: With dead ends: 11739 [2022-11-20 11:12:51,373 INFO L226 Difference]: Without dead ends: 8020 [2022-11-20 11:12:51,376 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 [2022-11-20 11:12:51,378 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 759 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:51,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1840 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:12:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8020 states. [2022-11-20 11:12:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8020 to 8018. [2022-11-20 11:12:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 8016 states have (on average 1.3839820359281436) internal successors, (11094), 8017 states have internal predecessors, (11094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:55,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 11094 transitions. [2022-11-20 11:12:55,315 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 11094 transitions. Word has length 73 [2022-11-20 11:12:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:55,315 INFO L495 AbstractCegarLoop]: Abstraction has 8018 states and 11094 transitions. [2022-11-20 11:12:55,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:12:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 11094 transitions. [2022-11-20 11:12:55,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 11:12:55,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:55,320 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] [2022-11-20 11:12:55,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:12:55,321 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:12:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1807483590, now seen corresponding path program 1 times [2022-11-20 11:12:55,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:55,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133250623] [2022-11-20 11:12:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:12:55,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:12:55,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133250623] [2022-11-20 11:12:55,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133250623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:55,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:55,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:12:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370986785] [2022-11-20 11:12:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:12:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:12:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:12:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:12:55,691 INFO L87 Difference]: Start difference. First operand 8018 states and 11094 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:08,789 INFO L93 Difference]: Finished difference Result 17536 states and 24731 transitions. [2022-11-20 11:13:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:13:08,789 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-20 11:13:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:08,805 INFO L225 Difference]: With dead ends: 17536 [2022-11-20 11:13:08,805 INFO L226 Difference]: Without dead ends: 16025 [2022-11-20 11:13:08,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:13:08,811 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 6596 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6596 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 3873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:08,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6596 Valid, 4828 Invalid, 3873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 11:13:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16025 states. [2022-11-20 11:13:13,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16025 to 8018. [2022-11-20 11:13:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 8016 states have (on average 1.3838572854291418) internal successors, (11093), 8017 states have internal predecessors, (11093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 11093 transitions. [2022-11-20 11:13:13,155 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 11093 transitions. Word has length 73 [2022-11-20 11:13:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:13,156 INFO L495 AbstractCegarLoop]: Abstraction has 8018 states and 11093 transitions. [2022-11-20 11:13:13,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 11093 transitions. [2022-11-20 11:13:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 11:13:13,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:13,161 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] [2022-11-20 11:13:13,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:13:13,162 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:13:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1528679865, now seen corresponding path program 1 times [2022-11-20 11:13:13,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:13:13,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626977088] [2022-11-20 11:13:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:13,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:13:13,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:13:13,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626977088] [2022-11-20 11:13:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626977088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:13:13,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:13:13,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:13:13,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742343277] [2022-11-20 11:13:13,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:13,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:13:13,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:13:13,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:13:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:13:13,475 INFO L87 Difference]: Start difference. First operand 8018 states and 11093 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:26,863 INFO L93 Difference]: Finished difference Result 18654 states and 26248 transitions. [2022-11-20 11:13:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:13:26,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-20 11:13:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:26,882 INFO L225 Difference]: With dead ends: 18654 [2022-11-20 11:13:26,883 INFO L226 Difference]: Without dead ends: 17215 [2022-11-20 11:13:26,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:13:26,886 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 6643 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 3411 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:26,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6643 Valid, 3411 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 11:13:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17215 states. [2022-11-20 11:13:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17215 to 8018. [2022-11-20 11:13:30,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 8016 states have (on average 1.3837325349301397) internal successors, (11092), 8017 states have internal predecessors, (11092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 11092 transitions. [2022-11-20 11:13:30,959 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 11092 transitions. Word has length 73 [2022-11-20 11:13:30,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:30,959 INFO L495 AbstractCegarLoop]: Abstraction has 8018 states and 11092 transitions. [2022-11-20 11:13:30,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:30,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 11092 transitions. [2022-11-20 11:13:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 11:13:30,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:30,965 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] [2022-11-20 11:13:30,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:13:30,965 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:13:30,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:30,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1766883791, now seen corresponding path program 1 times [2022-11-20 11:13:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:13:30,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680086092] [2022-11-20 11:13:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:13:31,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:13:31,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680086092] [2022-11-20 11:13:31,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680086092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:13:31,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:13:31,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:13:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108866057] [2022-11-20 11:13:31,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:31,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:13:31,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:13:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:13:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:13:31,042 INFO L87 Difference]: Start difference. First operand 8018 states and 11092 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:37,258 INFO L93 Difference]: Finished difference Result 16480 states and 23673 transitions. [2022-11-20 11:13:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:13:37,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-11-20 11:13:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:37,268 INFO L225 Difference]: With dead ends: 16480 [2022-11-20 11:13:37,269 INFO L226 Difference]: Without dead ends: 10688 [2022-11-20 11:13:37,273 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 [2022-11-20 11:13:37,273 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 719 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:37,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1805 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:13:37,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2022-11-20 11:13:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 8592. [2022-11-20 11:13:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8590 states have (on average 1.4058207217694993) internal successors, (12076), 8591 states have internal predecessors, (12076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 12076 transitions. [2022-11-20 11:13:42,139 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 12076 transitions. Word has length 74 [2022-11-20 11:13:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:42,139 INFO L495 AbstractCegarLoop]: Abstraction has 8592 states and 12076 transitions. [2022-11-20 11:13:42,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 12076 transitions. [2022-11-20 11:13:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 11:13:42,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:42,143 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] [2022-11-20 11:13:42,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:13:42,143 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:13:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash -327257939, now seen corresponding path program 1 times [2022-11-20 11:13:42,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:13:42,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759893891] [2022-11-20 11:13:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:13:42,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:13:42,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759893891] [2022-11-20 11:13:42,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759893891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:13:42,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:13:42,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:13:42,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875390832] [2022-11-20 11:13:42,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:13:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:13:42,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:13:42,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:13:42,213 INFO L87 Difference]: Start difference. First operand 8592 states and 12076 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:13:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:51,250 INFO L93 Difference]: Finished difference Result 21970 states and 31420 transitions. [2022-11-20 11:13:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:13:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-11-20 11:13:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:51,269 INFO L225 Difference]: With dead ends: 21970 [2022-11-20 11:13:51,269 INFO L226 Difference]: Without dead ends: 14914 [2022-11-20 11:13:51,275 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 [2022-11-20 11:13:51,275 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 766 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:51,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2326 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:13:51,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14914 states. [2022-11-20 11:14:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14914 to 14912. [2022-11-20 11:14:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14912 states, 14910 states have (on average 1.4026156941649899) internal successors, (20913), 14911 states have internal predecessors, (20913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:14:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14912 states to 14912 states and 20913 transitions. [2022-11-20 11:14:00,617 INFO L78 Accepts]: Start accepts. Automaton has 14912 states and 20913 transitions. Word has length 74 [2022-11-20 11:14:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:00,617 INFO L495 AbstractCegarLoop]: Abstraction has 14912 states and 20913 transitions. [2022-11-20 11:14:00,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:14:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 14912 states and 20913 transitions. [2022-11-20 11:14:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 11:14:00,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:00,621 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] [2022-11-20 11:14:00,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:14:00,622 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:14:00,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:00,622 INFO L85 PathProgramCache]: Analyzing trace with hash 761426124, now seen corresponding path program 1 times [2022-11-20 11:14:00,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:00,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464904880] [2022-11-20 11:14:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:00,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:00,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:00,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464904880] [2022-11-20 11:14:00,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464904880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:00,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:00,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:14:00,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544301056] [2022-11-20 11:14:00,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:00,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:14:00,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:00,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:14:00,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:14:00,705 INFO L87 Difference]: Start difference. First operand 14912 states and 20913 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:14:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:14:11,743 INFO L93 Difference]: Finished difference Result 31033 states and 44081 transitions. [2022-11-20 11:14:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:14:11,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 11:14:11,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:14:11,762 INFO L225 Difference]: With dead ends: 31033 [2022-11-20 11:14:11,762 INFO L226 Difference]: Without dead ends: 17130 [2022-11-20 11:14:11,770 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 [2022-11-20 11:14:11,771 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 1106 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:14:11,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1574 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:14:11,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17130 states. [2022-11-20 11:14:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17130 to 13724. [2022-11-20 11:14:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13724 states, 13722 states have (on average 1.4171403585483167) internal successors, (19446), 13723 states have internal predecessors, (19446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:14:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13724 states to 13724 states and 19446 transitions. [2022-11-20 11:14:20,731 INFO L78 Accepts]: Start accepts. Automaton has 13724 states and 19446 transitions. Word has length 75 [2022-11-20 11:14:20,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:20,732 INFO L495 AbstractCegarLoop]: Abstraction has 13724 states and 19446 transitions. [2022-11-20 11:14:20,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:14:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 13724 states and 19446 transitions. [2022-11-20 11:14:20,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 11:14:20,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:20,734 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] [2022-11-20 11:14:20,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:14:20,735 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:14:20,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:20,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1019895315, now seen corresponding path program 1 times [2022-11-20 11:14:20,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:20,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933115143] [2022-11-20 11:14:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:20,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:21,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:21,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933115143] [2022-11-20 11:14:21,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933115143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:21,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:21,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:14:21,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412457096] [2022-11-20 11:14:21,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:21,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:14:21,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:21,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:14:21,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:14:21,360 INFO L87 Difference]: Start difference. First operand 13724 states and 19446 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:22,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:15:22,369 INFO L93 Difference]: Finished difference Result 62935 states and 89692 transitions. [2022-11-20 11:15:22,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-20 11:15:22,370 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 11:15:22,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:15:22,498 INFO L225 Difference]: With dead ends: 62935 [2022-11-20 11:15:22,498 INFO L226 Difference]: Without dead ends: 62643 [2022-11-20 11:15:22,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=699, Invalid=2163, Unknown=0, NotChecked=0, Total=2862 [2022-11-20 11:15:22,517 INFO L413 NwaCegarLoop]: 1170 mSDtfsCounter, 9920 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 4777 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9920 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 4976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 4777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:15:22,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9920 Valid, 5832 Invalid, 4976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [199 Valid, 4777 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-20 11:15:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62643 states. [2022-11-20 11:15:33,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62643 to 13724. [2022-11-20 11:15:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13724 states, 13722 states have (on average 1.4170674828742167) internal successors, (19445), 13723 states have internal predecessors, (19445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13724 states to 13724 states and 19445 transitions. [2022-11-20 11:15:33,618 INFO L78 Accepts]: Start accepts. Automaton has 13724 states and 19445 transitions. Word has length 75 [2022-11-20 11:15:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:15:33,619 INFO L495 AbstractCegarLoop]: Abstraction has 13724 states and 19445 transitions. [2022-11-20 11:15:33,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13724 states and 19445 transitions. [2022-11-20 11:15:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 11:15:33,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:15:33,622 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] [2022-11-20 11:15:33,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:15:33,622 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:15:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash -981212164, now seen corresponding path program 1 times [2022-11-20 11:15:33,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:33,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688039543] [2022-11-20 11:15:33,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:33,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:15:33,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:33,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688039543] [2022-11-20 11:15:33,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688039543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:33,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:33,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:15:33,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288040341] [2022-11-20 11:15:33,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:33,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:15:33,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:15:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:15:33,999 INFO L87 Difference]: Start difference. First operand 13724 states and 19445 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:15:51,761 INFO L93 Difference]: Finished difference Result 18037 states and 25404 transitions. [2022-11-20 11:15:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:15:51,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 11:15:51,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:15:51,784 INFO L225 Difference]: With dead ends: 18037 [2022-11-20 11:15:51,784 INFO L226 Difference]: Without dead ends: 17821 [2022-11-20 11:15:51,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:15:51,788 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 6154 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6154 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:15:51,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6154 Valid, 2908 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 11:15:51,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2022-11-20 11:16:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 13719. [2022-11-20 11:16:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13719 states, 13717 states have (on average 1.4169278996865204) internal successors, (19436), 13718 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 19436 transitions. [2022-11-20 11:16:02,160 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 19436 transitions. Word has length 75 [2022-11-20 11:16:02,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:16:02,161 INFO L495 AbstractCegarLoop]: Abstraction has 13719 states and 19436 transitions. [2022-11-20 11:16:02,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 19436 transitions. [2022-11-20 11:16:02,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 11:16:02,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:16:02,164 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] [2022-11-20 11:16:02,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:16:02,165 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:16:02,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1634837550, now seen corresponding path program 1 times [2022-11-20 11:16:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:02,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865248940] [2022-11-20 11:16:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:02,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:16:02,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865248940] [2022-11-20 11:16:02,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865248940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:02,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:02,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:16:02,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765161565] [2022-11-20 11:16:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:02,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:16:02,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:16:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:16:02,500 INFO L87 Difference]: Start difference. First operand 13719 states and 19436 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:19,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:16:19,032 INFO L93 Difference]: Finished difference Result 18035 states and 25398 transitions. [2022-11-20 11:16:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:16:19,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-20 11:16:19,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:16:19,054 INFO L225 Difference]: With dead ends: 18035 [2022-11-20 11:16:19,054 INFO L226 Difference]: Without dead ends: 17821 [2022-11-20 11:16:19,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:16:19,059 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 6115 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:16:19,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6115 Valid, 2935 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 11:16:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2022-11-20 11:16:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 13719. [2022-11-20 11:16:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13719 states, 13717 states have (on average 1.4168549974484217) internal successors, (19435), 13718 states have internal predecessors, (19435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 19435 transitions. [2022-11-20 11:16:29,762 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 19435 transitions. Word has length 76 [2022-11-20 11:16:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:16:29,763 INFO L495 AbstractCegarLoop]: Abstraction has 13719 states and 19435 transitions. [2022-11-20 11:16:29,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 19435 transitions. [2022-11-20 11:16:29,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 11:16:29,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:16:29,766 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] [2022-11-20 11:16:29,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:16:29,767 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:16:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1496479219, now seen corresponding path program 1 times [2022-11-20 11:16:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:29,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937521372] [2022-11-20 11:16:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:16:30,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:30,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937521372] [2022-11-20 11:16:30,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937521372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:30,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:30,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:16:30,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215214640] [2022-11-20 11:16:30,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:30,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:16:30,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:16:30,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:16:30,128 INFO L87 Difference]: Start difference. First operand 13719 states and 19435 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:47,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:16:47,595 INFO L93 Difference]: Finished difference Result 18085 states and 25446 transitions. [2022-11-20 11:16:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:16:47,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-20 11:16:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:16:47,620 INFO L225 Difference]: With dead ends: 18085 [2022-11-20 11:16:47,620 INFO L226 Difference]: Without dead ends: 17849 [2022-11-20 11:16:47,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:16:47,626 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 5886 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:16:47,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5886 Valid, 3064 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 11:16:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-11-20 11:16:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 13719. [2022-11-20 11:16:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13719 states, 13717 states have (on average 1.416782095210323) internal successors, (19434), 13718 states have internal predecessors, (19434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 19434 transitions. [2022-11-20 11:16:58,754 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 19434 transitions. Word has length 76 [2022-11-20 11:16:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:16:58,755 INFO L495 AbstractCegarLoop]: Abstraction has 13719 states and 19434 transitions. [2022-11-20 11:16:58,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 19434 transitions. [2022-11-20 11:16:58,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 11:16:58,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:16:58,757 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] [2022-11-20 11:16:58,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:16:58,758 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:16:58,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:58,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1155055928, now seen corresponding path program 1 times [2022-11-20 11:16:58,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:58,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942566747] [2022-11-20 11:16:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:58,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:16:59,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942566747] [2022-11-20 11:16:59,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942566747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:59,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:59,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:16:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999807224] [2022-11-20 11:16:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:59,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:16:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:16:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:16:59,091 INFO L87 Difference]: Start difference. First operand 13719 states and 19434 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:17,414 INFO L93 Difference]: Finished difference Result 18035 states and 25396 transitions. [2022-11-20 11:17:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:17:17,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-20 11:17:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:17:17,437 INFO L225 Difference]: With dead ends: 18035 [2022-11-20 11:17:17,437 INFO L226 Difference]: Without dead ends: 17821 [2022-11-20 11:17:17,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:17:17,441 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 6050 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6050 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:17:17,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6050 Valid, 2982 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 11:17:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2022-11-20 11:17:29,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 13719. [2022-11-20 11:17:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13719 states, 13717 states have (on average 1.4167091929722242) internal successors, (19433), 13718 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 19433 transitions. [2022-11-20 11:17:29,073 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 19433 transitions. Word has length 76 [2022-11-20 11:17:29,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:17:29,074 INFO L495 AbstractCegarLoop]: Abstraction has 13719 states and 19433 transitions. [2022-11-20 11:17:29,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 19433 transitions. [2022-11-20 11:17:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 11:17:29,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:17:29,077 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] [2022-11-20 11:17:29,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:17:29,077 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:17:29,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1386450525, now seen corresponding path program 1 times [2022-11-20 11:17:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:29,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096466844] [2022-11-20 11:17:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:29,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:29,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096466844] [2022-11-20 11:17:29,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096466844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:29,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:29,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:17:29,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917767491] [2022-11-20 11:17:29,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:29,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:17:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:29,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:17:29,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:17:29,372 INFO L87 Difference]: Start difference. First operand 13719 states and 19433 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:47,145 INFO L93 Difference]: Finished difference Result 18085 states and 25443 transitions. [2022-11-20 11:17:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:17:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-20 11:17:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:17:47,164 INFO L225 Difference]: With dead ends: 18085 [2022-11-20 11:17:47,164 INFO L226 Difference]: Without dead ends: 17849 [2022-11-20 11:17:47,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:17:47,168 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 4362 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:17:47,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 3197 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 11:17:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-11-20 11:17:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 13719. [2022-11-20 11:17:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13719 states, 13717 states have (on average 1.4166362907341254) internal successors, (19432), 13718 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 19432 transitions. [2022-11-20 11:17:58,176 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 19432 transitions. Word has length 76 [2022-11-20 11:17:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:17:58,176 INFO L495 AbstractCegarLoop]: Abstraction has 13719 states and 19432 transitions. [2022-11-20 11:17:58,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 19432 transitions. [2022-11-20 11:17:58,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 11:17:58,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:17:58,179 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] [2022-11-20 11:17:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:17:58,179 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:17:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1346780630, now seen corresponding path program 1 times [2022-11-20 11:17:58,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:58,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512598012] [2022-11-20 11:17:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:58,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:58,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512598012] [2022-11-20 11:17:58,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512598012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:58,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:58,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:17:58,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78392716] [2022-11-20 11:17:58,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:58,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:17:58,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:58,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:17:58,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:17:58,748 INFO L87 Difference]: Start difference. First operand 13719 states and 19432 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:46,021 INFO L93 Difference]: Finished difference Result 42598 states and 60198 transitions. [2022-11-20 11:18:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:18:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-20 11:18:46,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:46,085 INFO L225 Difference]: With dead ends: 42598 [2022-11-20 11:18:46,085 INFO L226 Difference]: Without dead ends: 42381 [2022-11-20 11:18:46,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 11:18:46,094 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 11108 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11108 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:46,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11108 Valid, 4078 Invalid, 3635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:18:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42381 states. [2022-11-20 11:18:59,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42381 to 13724. [2022-11-20 11:18:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13724 states, 13722 states have (on average 1.4164844774814167) internal successors, (19437), 13723 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13724 states to 13724 states and 19437 transitions. [2022-11-20 11:18:59,144 INFO L78 Accepts]: Start accepts. Automaton has 13724 states and 19437 transitions. Word has length 76 [2022-11-20 11:18:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:59,145 INFO L495 AbstractCegarLoop]: Abstraction has 13724 states and 19437 transitions. [2022-11-20 11:18:59,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 13724 states and 19437 transitions. [2022-11-20 11:18:59,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 11:18:59,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:59,148 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] [2022-11-20 11:18:59,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:18:59,149 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:18:59,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:59,149 INFO L85 PathProgramCache]: Analyzing trace with hash 541474544, now seen corresponding path program 1 times [2022-11-20 11:18:59,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:59,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292053424] [2022-11-20 11:18:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292053424] [2022-11-20 11:18:59,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292053424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:59,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:59,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:18:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897730971] [2022-11-20 11:18:59,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:59,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:18:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:18:59,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:18:59,233 INFO L87 Difference]: Start difference. First operand 13724 states and 19437 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:17,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:17,996 INFO L93 Difference]: Finished difference Result 32546 states and 46688 transitions. [2022-11-20 11:19:17,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:19:17,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-20 11:19:17,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:18,023 INFO L225 Difference]: With dead ends: 32546 [2022-11-20 11:19:18,023 INFO L226 Difference]: Without dead ends: 20197 [2022-11-20 11:19:18,038 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 [2022-11-20 11:19:18,039 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 697 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:18,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1703 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:19:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20197 states. [2022-11-20 11:19:32,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20197 to 16220. [2022-11-20 11:19:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16220 states, 16218 states have (on average 1.408250092489826) internal successors, (22839), 16219 states have internal predecessors, (22839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16220 states to 16220 states and 22839 transitions. [2022-11-20 11:19:32,665 INFO L78 Accepts]: Start accepts. Automaton has 16220 states and 22839 transitions. Word has length 77 [2022-11-20 11:19:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 16220 states and 22839 transitions. [2022-11-20 11:19:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 16220 states and 22839 transitions. [2022-11-20 11:19:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 11:19:32,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:32,670 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] [2022-11-20 11:19:32,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:19:32,683 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:19:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:32,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1481047652, now seen corresponding path program 1 times [2022-11-20 11:19:32,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:32,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119176823] [2022-11-20 11:19:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:32,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:19:33,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:33,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119176823] [2022-11-20 11:19:33,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119176823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:33,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:33,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:19:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772005747] [2022-11-20 11:19:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:33,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:19:33,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:33,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:19:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:19:33,040 INFO L87 Difference]: Start difference. First operand 16220 states and 22839 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:19:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:56,083 INFO L93 Difference]: Finished difference Result 20834 states and 29137 transitions. [2022-11-20 11:19:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:19:56,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-20 11:19:56,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:56,106 INFO L225 Difference]: With dead ends: 20834 [2022-11-20 11:19:56,106 INFO L226 Difference]: Without dead ends: 20760 [2022-11-20 11:19:56,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:19:56,111 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 4366 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4366 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:56,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4366 Valid, 3077 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 11:19:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20760 states. [2022-11-20 11:20:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20760 to 16215. [2022-11-20 11:20:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16215 states, 16213 states have (on average 1.4083143156726083) internal successors, (22833), 16214 states have internal predecessors, (22833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 22833 transitions. [2022-11-20 11:20:11,714 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 22833 transitions. Word has length 77 [2022-11-20 11:20:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:20:11,714 INFO L495 AbstractCegarLoop]: Abstraction has 16215 states and 22833 transitions. [2022-11-20 11:20:11,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:20:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 22833 transitions. [2022-11-20 11:20:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 11:20:11,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:20:11,717 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] [2022-11-20 11:20:11,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:20:11,718 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:20:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:11,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1302619462, now seen corresponding path program 1 times [2022-11-20 11:20:11,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:11,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303414871] [2022-11-20 11:20:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:11,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:20:12,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:12,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303414871] [2022-11-20 11:20:12,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303414871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:12,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:12,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:20:12,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141828459] [2022-11-20 11:20:12,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:12,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:20:12,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:20:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:20:12,478 INFO L87 Difference]: Start difference. First operand 16215 states and 22833 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:21:11,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:11,300 INFO L93 Difference]: Finished difference Result 48566 states and 68508 transitions. [2022-11-20 11:21:11,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:21:11,300 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-11-20 11:21:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:11,372 INFO L225 Difference]: With dead ends: 48566 [2022-11-20 11:21:11,373 INFO L226 Difference]: Without dead ends: 48497 [2022-11-20 11:21:11,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2022-11-20 11:21:11,382 INFO L413 NwaCegarLoop]: 1240 mSDtfsCounter, 8267 mSDsluCounter, 6994 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8267 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:11,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8267 Valid, 8234 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 11:21:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48497 states. [2022-11-20 11:21:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48497 to 16214. [2022-11-20 11:21:25,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16214 states, 16212 states have (on average 1.4082778188995806) internal successors, (22831), 16213 states have internal predecessors, (22831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:21:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16214 states to 16214 states and 22831 transitions. [2022-11-20 11:21:26,003 INFO L78 Accepts]: Start accepts. Automaton has 16214 states and 22831 transitions. Word has length 78 [2022-11-20 11:21:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:26,004 INFO L495 AbstractCegarLoop]: Abstraction has 16214 states and 22831 transitions. [2022-11-20 11:21:26,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:21:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16214 states and 22831 transitions. [2022-11-20 11:21:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 11:21:26,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:26,008 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] [2022-11-20 11:21:26,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:21:26,009 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:21:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash -411265797, now seen corresponding path program 1 times [2022-11-20 11:21:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:26,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039328342] [2022-11-20 11:21:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:21:26,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:26,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039328342] [2022-11-20 11:21:26,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039328342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:21:26,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:21:26,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:21:26,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855811959] [2022-11-20 11:21:26,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:21:26,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:21:26,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:26,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:21:26,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:21:26,688 INFO L87 Difference]: Start difference. First operand 16214 states and 22831 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:21:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:58,576 INFO L93 Difference]: Finished difference Result 28659 states and 40330 transitions. [2022-11-20 11:21:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:21:58,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-20 11:21:58,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:58,618 INFO L225 Difference]: With dead ends: 28659 [2022-11-20 11:21:58,618 INFO L226 Difference]: Without dead ends: 28562 [2022-11-20 11:21:58,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:21:58,625 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 6385 mSDsluCounter, 6669 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6385 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:58,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6385 Valid, 8212 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 11:21:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28562 states. [2022-11-20 11:22:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28562 to 16185. [2022-11-20 11:22:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16185 states, 16183 states have (on average 1.408515108447136) internal successors, (22794), 16184 states have internal predecessors, (22794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16185 states to 16185 states and 22794 transitions. [2022-11-20 11:22:13,949 INFO L78 Accepts]: Start accepts. Automaton has 16185 states and 22794 transitions. Word has length 79 [2022-11-20 11:22:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:22:13,949 INFO L495 AbstractCegarLoop]: Abstraction has 16185 states and 22794 transitions. [2022-11-20 11:22:13,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:22:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 16185 states and 22794 transitions. [2022-11-20 11:22:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 11:22:13,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:22:13,952 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] [2022-11-20 11:22:13,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 11:22:13,952 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:22:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash 483325584, now seen corresponding path program 1 times [2022-11-20 11:22:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731573383] [2022-11-20 11:22:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:22:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:14,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731573383] [2022-11-20 11:22:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731573383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:14,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:22:14,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:22:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549090547] [2022-11-20 11:22:14,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:14,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:22:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:22:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:22:14,628 INFO L87 Difference]: Start difference. First operand 16185 states and 22794 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:23:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:08,266 INFO L93 Difference]: Finished difference Result 48509 states and 68439 transitions. [2022-11-20 11:23:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:23:08,266 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-20 11:23:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:08,330 INFO L225 Difference]: With dead ends: 48509 [2022-11-20 11:23:08,330 INFO L226 Difference]: Without dead ends: 48440 [2022-11-20 11:23:08,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2022-11-20 11:23:08,339 INFO L413 NwaCegarLoop]: 1350 mSDtfsCounter, 8656 mSDsluCounter, 8654 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8656 SdHoareTripleChecker+Valid, 10004 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:08,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8656 Valid, 10004 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 11:23:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48440 states. [2022-11-20 11:23:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48440 to 16184. [2022-11-20 11:23:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16184 states, 16182 states have (on average 1.4084785564207143) internal successors, (22792), 16183 states have internal predecessors, (22792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:23:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16184 states to 16184 states and 22792 transitions. [2022-11-20 11:23:22,497 INFO L78 Accepts]: Start accepts. Automaton has 16184 states and 22792 transitions. Word has length 79 [2022-11-20 11:23:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:22,497 INFO L495 AbstractCegarLoop]: Abstraction has 16184 states and 22792 transitions. [2022-11-20 11:23:22,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:23:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 16184 states and 22792 transitions. [2022-11-20 11:23:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 11:23:22,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:22,500 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] [2022-11-20 11:23:22,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 11:23:22,500 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:23:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash -605840692, now seen corresponding path program 1 times [2022-11-20 11:23:22,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:22,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694873965] [2022-11-20 11:23:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:22,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:23:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:23:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:23:23,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:23:23,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694873965] [2022-11-20 11:23:23,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694873965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:23:23,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:23:23,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:23:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312594726] [2022-11-20 11:23:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:23:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:23:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:23:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:23:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:23:23,088 INFO L87 Difference]: Start difference. First operand 16184 states and 22792 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:03,078 INFO L93 Difference]: Finished difference Result 35111 states and 49420 transitions. [2022-11-20 11:24:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:24:03,078 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-20 11:24:03,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:03,115 INFO L225 Difference]: With dead ends: 35111 [2022-11-20 11:24:03,115 INFO L226 Difference]: Without dead ends: 34977 [2022-11-20 11:24:03,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:24:03,120 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 8173 mSDsluCounter, 5056 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8173 SdHoareTripleChecker+Valid, 6173 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:03,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8173 Valid, 6173 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 11:24:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34977 states. [2022-11-20 11:24:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34977 to 16118. [2022-11-20 11:24:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16118 states, 16117 states have (on average 1.40894707451759) internal successors, (22708), 16117 states have internal predecessors, (22708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16118 states to 16118 states and 22708 transitions. [2022-11-20 11:24:17,706 INFO L78 Accepts]: Start accepts. Automaton has 16118 states and 22708 transitions. Word has length 79 [2022-11-20 11:24:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:17,706 INFO L495 AbstractCegarLoop]: Abstraction has 16118 states and 22708 transitions. [2022-11-20 11:24:17,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 16118 states and 22708 transitions. [2022-11-20 11:24:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 11:24:17,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:17,710 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] [2022-11-20 11:24:17,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 11:24:17,710 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 11:24:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1647520735, now seen corresponding path program 1 times [2022-11-20 11:24:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:17,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006394914] [2022-11-20 11:24:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:17,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:17,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006394914] [2022-11-20 11:24:17,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006394914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:17,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:17,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:24:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453963394] [2022-11-20 11:24:17,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:17,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:17,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:17,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:17,807 INFO L87 Difference]: Start difference. First operand 16118 states and 22708 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:03,265 INFO L93 Difference]: Finished difference Result 62020 states and 88093 transitions. [2022-11-20 11:25:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-11-20 11:25:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:03,328 INFO L225 Difference]: With dead ends: 62020 [2022-11-20 11:25:03,328 INFO L226 Difference]: Without dead ends: 47042 [2022-11-20 11:25:03,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:25:03,340 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 3823 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:03,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 2106 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:25:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47042 states.