./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:47:51,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:47:51,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:47:51,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:47:51,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:47:51,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:47:51,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:47:51,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:47:51,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:47:51,374 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:47:51,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:47:51,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:47:51,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:47:51,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:47:51,378 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:47:51,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:47:51,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:47:51,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:47:51,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:47:51,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:47:51,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:47:51,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:47:51,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:47:51,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:47:51,383 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:47:51,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:47:51,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:47:51,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:47:51,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:47:51,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:47:51,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:47:51,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:51,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:47:51,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:47:51,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:47:51,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:47:51,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:47:51,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:47:51,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:47:51,389 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:47:51,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:47:51,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:47:51,391 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd [2023-11-26 11:47:51,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:47:51,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:47:51,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:47:51,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:47:51,752 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:47:51,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-26 11:47:54,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:47:55,394 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:47:55,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-26 11:47:55,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/data/310baa54d/169b4b78e65541aa8479f88f20d132fd/FLAGfcc1fc3d3 [2023-11-26 11:47:55,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/data/310baa54d/169b4b78e65541aa8479f88f20d132fd [2023-11-26 11:47:55,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:47:55,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:47:55,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:55,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:47:55,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:47:55,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:55" (1/1) ... [2023-11-26 11:47:55,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4224f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:55, skipping insertion in model container [2023-11-26 11:47:55,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:55" (1/1) ... [2023-11-26 11:47:55,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:47:56,030 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2023-11-26 11:47:56,060 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2023-11-26 11:47:56,072 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2023-11-26 11:47:56,081 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2023-11-26 11:47:56,093 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2023-11-26 11:47:56,101 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2023-11-26 11:47:56,109 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2023-11-26 11:47:56,132 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2023-11-26 11:47:56,139 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2023-11-26 11:47:56,147 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2023-11-26 11:47:56,161 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2023-11-26 11:47:56,186 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2023-11-26 11:47:56,200 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2023-11-26 11:47:56,208 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2023-11-26 11:47:56,221 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2023-11-26 11:47:56,257 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2023-11-26 11:47:56,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:56,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:47:56,580 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2023-11-26 11:47:56,595 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2023-11-26 11:47:56,602 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2023-11-26 11:47:56,607 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2023-11-26 11:47:56,621 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2023-11-26 11:47:56,631 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2023-11-26 11:47:56,639 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2023-11-26 11:47:56,651 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2023-11-26 11:47:56,656 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2023-11-26 11:47:56,662 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2023-11-26 11:47:56,674 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2023-11-26 11:47:56,692 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2023-11-26 11:47:56,696 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2023-11-26 11:47:56,701 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2023-11-26 11:47:56,711 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2023-11-26 11:47:56,725 WARN L240 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_b111dbff-f87f-42a3-bd40-ad42dfee71e6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2023-11-26 11:47:56,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:56,900 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:47:56,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56 WrapperNode [2023-11-26 11:47:56,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:56,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:56,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:47:56,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:47:56,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:56,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,084 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3572 [2023-11-26 11:47:57,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:57,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:47:57,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:47:57,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:47:57,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,107 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,226 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:47:57,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:47:57,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:47:57,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:47:57,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:47:57,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (1/1) ... [2023-11-26 11:47:57,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:57,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:57,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:57,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111dbff-f87f-42a3-bd40-ad42dfee71e6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:47:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:47:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:47:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:47:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:47:57,637 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:47:57,639 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:47:59,704 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:47:59,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:47:59,790 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:47:59,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:59 BoogieIcfgContainer [2023-11-26 11:47:59,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:47:59,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:47:59,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:47:59,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:47:59,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:47:55" (1/3) ... [2023-11-26 11:47:59,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e8fd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:59, skipping insertion in model container [2023-11-26 11:47:59,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:56" (2/3) ... [2023-11-26 11:47:59,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e8fd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:59, skipping insertion in model container [2023-11-26 11:47:59,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:59" (3/3) ... [2023-11-26 11:47:59,807 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-26 11:47:59,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:47:59,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-26 11:47:59,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:47:59,915 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50ac7f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:47:59,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-26 11:47:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 607 states have (on average 1.8533772652388798) internal successors, (1125), 624 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 11:47:59,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:59,947 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] [2023-11-26 11:47:59,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:47:59,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1484817577, now seen corresponding path program 1 times [2023-11-26 11:47:59,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:59,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640391432] [2023-11-26 11:47:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:59,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:00,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640391432] [2023-11-26 11:48:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640391432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:00,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:00,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:00,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732512989] [2023-11-26 11:48:00,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:00,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:00,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:00,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:00,946 INFO L87 Difference]: Start difference. First operand has 625 states, 607 states have (on average 1.8533772652388798) internal successors, (1125), 624 states have internal predecessors, (1125), 0 states have call successors, (0), 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 14.0) internal successors, (70), 4 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) [2023-11-26 11:48:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:01,637 INFO L93 Difference]: Finished difference Result 968 states and 1681 transitions. [2023-11-26 11:48:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 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 [2023-11-26 11:48:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:01,664 INFO L225 Difference]: With dead ends: 968 [2023-11-26 11:48:01,665 INFO L226 Difference]: Without dead ends: 505 [2023-11-26 11:48:01,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:01,683 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 2529 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:01,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 618 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:48:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-11-26 11:48:01,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2023-11-26 11:48:01,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 489 states have (on average 1.3026584867075666) internal successors, (637), 504 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 637 transitions. [2023-11-26 11:48:01,823 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 637 transitions. Word has length 70 [2023-11-26 11:48:01,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:01,824 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 637 transitions. [2023-11-26 11:48:01,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 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) [2023-11-26 11:48:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 637 transitions. [2023-11-26 11:48:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 11:48:01,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:01,830 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] [2023-11-26 11:48:01,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:48:01,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:01,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1062417945, now seen corresponding path program 1 times [2023-11-26 11:48:01,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212571316] [2023-11-26 11:48:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:02,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212571316] [2023-11-26 11:48:02,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212571316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:02,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:02,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:02,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989141376] [2023-11-26 11:48:02,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:02,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:02,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:02,102 INFO L87 Difference]: Start difference. First operand 505 states and 637 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2023-11-26 11:48:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:02,485 INFO L93 Difference]: Finished difference Result 840 states and 1089 transitions. [2023-11-26 11:48:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:02,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 [2023-11-26 11:48:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:02,489 INFO L225 Difference]: With dead ends: 840 [2023-11-26 11:48:02,489 INFO L226 Difference]: Without dead ends: 438 [2023-11-26 11:48:02,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:02,491 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1641 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:02,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 332 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:48:02,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-26 11:48:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-11-26 11:48:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 422 states have (on average 1.3293838862559242) internal successors, (561), 437 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 561 transitions. [2023-11-26 11:48:02,506 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 561 transitions. Word has length 71 [2023-11-26 11:48:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:02,507 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 561 transitions. [2023-11-26 11:48:02,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2023-11-26 11:48:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 561 transitions. [2023-11-26 11:48:02,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-26 11:48:02,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:02,510 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] [2023-11-26 11:48:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:48:02,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:02,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:02,511 INFO L85 PathProgramCache]: Analyzing trace with hash -387238674, now seen corresponding path program 1 times [2023-11-26 11:48:02,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:02,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168608258] [2023-11-26 11:48:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:02,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:02,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168608258] [2023-11-26 11:48:02,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168608258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:02,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:02,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:02,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597408641] [2023-11-26 11:48:02,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:02,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:02,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:02,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:02,764 INFO L87 Difference]: Start difference. First operand 438 states and 561 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2023-11-26 11:48:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:03,138 INFO L93 Difference]: Finished difference Result 773 states and 1012 transitions. [2023-11-26 11:48:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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 [2023-11-26 11:48:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:03,142 INFO L225 Difference]: With dead ends: 773 [2023-11-26 11:48:03,142 INFO L226 Difference]: Without dead ends: 412 [2023-11-26 11:48:03,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:03,144 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1509 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:03,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 313 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:48:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-26 11:48:03,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2023-11-26 11:48:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 396 states have (on average 1.3383838383838385) internal successors, (530), 411 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 530 transitions. [2023-11-26 11:48:03,160 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 530 transitions. Word has length 72 [2023-11-26 11:48:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:03,161 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 530 transitions. [2023-11-26 11:48:03,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 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) [2023-11-26 11:48:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 530 transitions. [2023-11-26 11:48:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 11:48:03,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:03,164 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] [2023-11-26 11:48:03,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:48:03,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:03,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash -289112562, now seen corresponding path program 1 times [2023-11-26 11:48:03,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949075182] [2023-11-26 11:48:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:03,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:03,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949075182] [2023-11-26 11:48:03,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949075182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:03,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:03,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841595684] [2023-11-26 11:48:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:03,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:03,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:03,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:03,326 INFO L87 Difference]: Start difference. First operand 412 states and 530 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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) [2023-11-26 11:48:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:03,654 INFO L93 Difference]: Finished difference Result 747 states and 980 transitions. [2023-11-26 11:48:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:03,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 [2023-11-26 11:48:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:03,657 INFO L225 Difference]: With dead ends: 747 [2023-11-26 11:48:03,658 INFO L226 Difference]: Without dead ends: 393 [2023-11-26 11:48:03,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:03,659 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1470 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:03,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 302 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:48:03,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-26 11:48:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2023-11-26 11:48:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3474801061007957) internal successors, (508), 392 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 508 transitions. [2023-11-26 11:48:03,671 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 508 transitions. Word has length 73 [2023-11-26 11:48:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:03,671 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 508 transitions. [2023-11-26 11:48:03,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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) [2023-11-26 11:48:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 508 transitions. [2023-11-26 11:48:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-26 11:48:03,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:03,674 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] [2023-11-26 11:48:03,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:48:03,674 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:03,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -759675733, now seen corresponding path program 1 times [2023-11-26 11:48:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:03,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507684560] [2023-11-26 11:48:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:03,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507684560] [2023-11-26 11:48:03,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507684560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:03,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:03,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395487147] [2023-11-26 11:48:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:03,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:48:03,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:03,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:48:03,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:03,853 INFO L87 Difference]: Start difference. First operand 393 states and 508 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2023-11-26 11:48:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:04,222 INFO L93 Difference]: Finished difference Result 728 states and 957 transitions. [2023-11-26 11:48:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:48:04,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 [2023-11-26 11:48:04,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:04,226 INFO L225 Difference]: With dead ends: 728 [2023-11-26 11:48:04,226 INFO L226 Difference]: Without dead ends: 388 [2023-11-26 11:48:04,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:04,228 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1402 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:04,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 277 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:48:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-11-26 11:48:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2023-11-26 11:48:04,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.346774193548387) internal successors, (501), 387 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 501 transitions. [2023-11-26 11:48:04,240 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 501 transitions. Word has length 74 [2023-11-26 11:48:04,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:04,241 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 501 transitions. [2023-11-26 11:48:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2023-11-26 11:48:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 501 transitions. [2023-11-26 11:48:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:48:04,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:04,243 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] [2023-11-26 11:48:04,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:48:04,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:04,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:04,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1130154961, now seen corresponding path program 1 times [2023-11-26 11:48:04,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:04,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641976381] [2023-11-26 11:48:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:04,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:04,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:04,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641976381] [2023-11-26 11:48:04,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641976381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:04,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:04,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:48:04,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268745724] [2023-11-26 11:48:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:04,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:48:04,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:04,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:48:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:48:04,739 INFO L87 Difference]: Start difference. First operand 388 states and 501 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2023-11-26 11:48:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:05,487 INFO L93 Difference]: Finished difference Result 750 states and 952 transitions. [2023-11-26 11:48:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:48:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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 [2023-11-26 11:48:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:05,491 INFO L225 Difference]: With dead ends: 750 [2023-11-26 11:48:05,492 INFO L226 Difference]: Without dead ends: 539 [2023-11-26 11:48:05,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:48:05,493 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 2344 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:05,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2344 Valid, 664 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:48:05,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-26 11:48:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 388. [2023-11-26 11:48:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3440860215053763) internal successors, (500), 387 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 500 transitions. [2023-11-26 11:48:05,507 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 500 transitions. Word has length 75 [2023-11-26 11:48:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:05,508 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 500 transitions. [2023-11-26 11:48:05,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2023-11-26 11:48:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 500 transitions. [2023-11-26 11:48:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:48:05,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:05,515 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] [2023-11-26 11:48:05,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:48:05,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:05,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash 496363608, now seen corresponding path program 1 times [2023-11-26 11:48:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104753752] [2023-11-26 11:48:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:05,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:06,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104753752] [2023-11-26 11:48:06,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104753752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:06,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:06,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:06,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987027919] [2023-11-26 11:48:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:06,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:06,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:06,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:06,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:06,004 INFO L87 Difference]: Start difference. First operand 388 states and 500 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2023-11-26 11:48:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:07,340 INFO L93 Difference]: Finished difference Result 857 states and 1143 transitions. [2023-11-26 11:48:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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 [2023-11-26 11:48:07,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:07,345 INFO L225 Difference]: With dead ends: 857 [2023-11-26 11:48:07,345 INFO L226 Difference]: Without dead ends: 730 [2023-11-26 11:48:07,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:07,347 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 2133 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:07,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 2215 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:48:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-26 11:48:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 388. [2023-11-26 11:48:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3413978494623655) internal successors, (499), 387 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 499 transitions. [2023-11-26 11:48:07,361 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 499 transitions. Word has length 75 [2023-11-26 11:48:07,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:07,361 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 499 transitions. [2023-11-26 11:48:07,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2023-11-26 11:48:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 499 transitions. [2023-11-26 11:48:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:48:07,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:07,363 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] [2023-11-26 11:48:07,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:48:07,364 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:07,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1385408418, now seen corresponding path program 1 times [2023-11-26 11:48:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759949258] [2023-11-26 11:48:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759949258] [2023-11-26 11:48:07,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759949258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:07,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:07,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130147520] [2023-11-26 11:48:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:07,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:07,782 INFO L87 Difference]: Start difference. First operand 388 states and 499 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2023-11-26 11:48:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:09,089 INFO L93 Difference]: Finished difference Result 814 states and 1087 transitions. [2023-11-26 11:48:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:09,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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 [2023-11-26 11:48:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:09,095 INFO L225 Difference]: With dead ends: 814 [2023-11-26 11:48:09,095 INFO L226 Difference]: Without dead ends: 726 [2023-11-26 11:48:09,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:09,098 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2037 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:09,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 2134 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:48:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-11-26 11:48:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 388. [2023-11-26 11:48:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3387096774193548) internal successors, (498), 387 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 498 transitions. [2023-11-26 11:48:09,112 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 498 transitions. Word has length 75 [2023-11-26 11:48:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:09,114 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 498 transitions. [2023-11-26 11:48:09,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2023-11-26 11:48:09,115 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 498 transitions. [2023-11-26 11:48:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:09,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:09,117 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] [2023-11-26 11:48:09,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:48:09,117 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:09,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash -821108329, now seen corresponding path program 1 times [2023-11-26 11:48:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:09,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661606690] [2023-11-26 11:48:09,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:09,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:09,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661606690] [2023-11-26 11:48:09,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661606690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:09,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:09,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:48:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34751737] [2023-11-26 11:48:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:48:09,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:48:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:48:09,789 INFO L87 Difference]: Start difference. First operand 388 states and 498 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2023-11-26 11:48:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:12,725 INFO L93 Difference]: Finished difference Result 1337 states and 1837 transitions. [2023-11-26 11:48:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:48:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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 [2023-11-26 11:48:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:12,734 INFO L225 Difference]: With dead ends: 1337 [2023-11-26 11:48:12,734 INFO L226 Difference]: Without dead ends: 1240 [2023-11-26 11:48:12,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-26 11:48:12,739 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 4396 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:12,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 3120 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-26 11:48:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2023-11-26 11:48:12,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 392. [2023-11-26 11:48:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3351063829787233) internal successors, (502), 391 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 502 transitions. [2023-11-26 11:48:12,756 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 502 transitions. Word has length 77 [2023-11-26 11:48:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:12,757 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 502 transitions. [2023-11-26 11:48:12,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2023-11-26 11:48:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 502 transitions. [2023-11-26 11:48:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:12,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:12,759 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] [2023-11-26 11:48:12,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:48:12,760 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:12,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:12,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1229953557, now seen corresponding path program 1 times [2023-11-26 11:48:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923095381] [2023-11-26 11:48:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:13,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:13,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:13,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923095381] [2023-11-26 11:48:13,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923095381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:13,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:13,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:13,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215748551] [2023-11-26 11:48:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:13,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:13,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:13,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:13,181 INFO L87 Difference]: Start difference. First operand 392 states and 502 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:14,312 INFO L93 Difference]: Finished difference Result 797 states and 1055 transitions. [2023-11-26 11:48:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2023-11-26 11:48:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:14,316 INFO L225 Difference]: With dead ends: 797 [2023-11-26 11:48:14,317 INFO L226 Difference]: Without dead ends: 722 [2023-11-26 11:48:14,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-26 11:48:14,318 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2194 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:14,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 1467 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:48:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-26 11:48:14,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 392. [2023-11-26 11:48:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3324468085106382) internal successors, (501), 391 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 501 transitions. [2023-11-26 11:48:14,332 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 501 transitions. Word has length 77 [2023-11-26 11:48:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:14,333 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 501 transitions. [2023-11-26 11:48:14,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 501 transitions. [2023-11-26 11:48:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:14,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:14,335 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] [2023-11-26 11:48:14,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:48:14,335 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:14,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -861851382, now seen corresponding path program 1 times [2023-11-26 11:48:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:14,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173005298] [2023-11-26 11:48:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:14,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:14,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173005298] [2023-11-26 11:48:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173005298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:14,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:14,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:48:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088992237] [2023-11-26 11:48:14,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:14,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:48:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:14,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:48:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:48:14,954 INFO L87 Difference]: Start difference. First operand 392 states and 501 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2023-11-26 11:48:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:17,276 INFO L93 Difference]: Finished difference Result 1209 states and 1647 transitions. [2023-11-26 11:48:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:48:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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 [2023-11-26 11:48:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:17,282 INFO L225 Difference]: With dead ends: 1209 [2023-11-26 11:48:17,283 INFO L226 Difference]: Without dead ends: 1134 [2023-11-26 11:48:17,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-26 11:48:17,284 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 4530 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4530 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:17,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4530 Valid, 2275 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 11:48:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2023-11-26 11:48:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 396. [2023-11-26 11:48:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3289473684210527) internal successors, (505), 395 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 505 transitions. [2023-11-26 11:48:17,299 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 505 transitions. Word has length 77 [2023-11-26 11:48:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:17,300 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 505 transitions. [2023-11-26 11:48:17,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2023-11-26 11:48:17,300 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 505 transitions. [2023-11-26 11:48:17,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:17,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:17,302 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] [2023-11-26 11:48:17,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:48:17,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:17,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:17,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1582421198, now seen corresponding path program 1 times [2023-11-26 11:48:17,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:17,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026003008] [2023-11-26 11:48:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:17,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:17,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:17,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026003008] [2023-11-26 11:48:17,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026003008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:17,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:17,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:17,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690390157] [2023-11-26 11:48:17,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:17,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:17,681 INFO L87 Difference]: Start difference. First operand 396 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:18,936 INFO L93 Difference]: Finished difference Result 793 states and 1049 transitions. [2023-11-26 11:48:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:18,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2023-11-26 11:48:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:18,941 INFO L225 Difference]: With dead ends: 793 [2023-11-26 11:48:18,942 INFO L226 Difference]: Without dead ends: 722 [2023-11-26 11:48:18,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-26 11:48:18,943 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 2226 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:18,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 1422 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:48:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-26 11:48:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 396. [2023-11-26 11:48:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3263157894736841) internal successors, (504), 395 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 504 transitions. [2023-11-26 11:48:18,959 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 504 transitions. Word has length 77 [2023-11-26 11:48:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:18,960 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 504 transitions. [2023-11-26 11:48:18,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 504 transitions. [2023-11-26 11:48:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:18,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:18,963 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] [2023-11-26 11:48:18,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:48:18,963 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:18,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 981154930, now seen corresponding path program 1 times [2023-11-26 11:48:18,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99425380] [2023-11-26 11:48:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:19,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:19,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99425380] [2023-11-26 11:48:19,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99425380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:19,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:19,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:19,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328561364] [2023-11-26 11:48:19,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:19,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:19,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:19,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:19,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:19,285 INFO L87 Difference]: Start difference. First operand 396 states and 504 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:20,274 INFO L93 Difference]: Finished difference Result 880 states and 1160 transitions. [2023-11-26 11:48:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:20,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2023-11-26 11:48:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:20,278 INFO L225 Difference]: With dead ends: 880 [2023-11-26 11:48:20,279 INFO L226 Difference]: Without dead ends: 738 [2023-11-26 11:48:20,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:20,280 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1748 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:20,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 1780 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-26 11:48:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 396. [2023-11-26 11:48:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3236842105263158) internal successors, (503), 395 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 503 transitions. [2023-11-26 11:48:20,294 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 503 transitions. Word has length 77 [2023-11-26 11:48:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:20,294 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 503 transitions. [2023-11-26 11:48:20,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 503 transitions. [2023-11-26 11:48:20,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:20,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:20,296 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] [2023-11-26 11:48:20,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:48:20,297 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:20,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -817405268, now seen corresponding path program 1 times [2023-11-26 11:48:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757300913] [2023-11-26 11:48:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:20,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757300913] [2023-11-26 11:48:20,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757300913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:20,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:20,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:20,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66849213] [2023-11-26 11:48:20,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:20,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:20,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:20,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:20,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:20,655 INFO L87 Difference]: Start difference. First operand 396 states and 503 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:21,695 INFO L93 Difference]: Finished difference Result 797 states and 1050 transitions. [2023-11-26 11:48:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:21,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2023-11-26 11:48:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:21,700 INFO L225 Difference]: With dead ends: 797 [2023-11-26 11:48:21,701 INFO L226 Difference]: Without dead ends: 722 [2023-11-26 11:48:21,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-26 11:48:21,702 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 2211 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:21,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 1437 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-26 11:48:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 396. [2023-11-26 11:48:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.3210526315789475) internal successors, (502), 395 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 502 transitions. [2023-11-26 11:48:21,716 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 502 transitions. Word has length 77 [2023-11-26 11:48:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:21,717 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 502 transitions. [2023-11-26 11:48:21,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:21,718 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 502 transitions. [2023-11-26 11:48:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:48:21,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:21,719 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] [2023-11-26 11:48:21,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:48:21,720 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:21,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash -408560040, now seen corresponding path program 1 times [2023-11-26 11:48:21,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:21,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097870315] [2023-11-26 11:48:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:22,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097870315] [2023-11-26 11:48:22,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097870315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:22,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:22,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617875360] [2023-11-26 11:48:22,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:22,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:22,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:22,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:22,046 INFO L87 Difference]: Start difference. First operand 396 states and 502 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:23,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:23,221 INFO L93 Difference]: Finished difference Result 827 states and 1091 transitions. [2023-11-26 11:48:23,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:23,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2023-11-26 11:48:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:23,226 INFO L225 Difference]: With dead ends: 827 [2023-11-26 11:48:23,226 INFO L226 Difference]: Without dead ends: 730 [2023-11-26 11:48:23,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:48:23,228 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1407 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:23,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1754 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:48:23,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-26 11:48:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 396. [2023-11-26 11:48:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 380 states have (on average 1.318421052631579) internal successors, (501), 395 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 501 transitions. [2023-11-26 11:48:23,246 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 501 transitions. Word has length 77 [2023-11-26 11:48:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:23,246 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 501 transitions. [2023-11-26 11:48:23,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2023-11-26 11:48:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 501 transitions. [2023-11-26 11:48:23,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 11:48:23,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:23,248 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] [2023-11-26 11:48:23,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:48:23,249 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:23,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash 882708282, now seen corresponding path program 1 times [2023-11-26 11:48:23,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:23,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229871844] [2023-11-26 11:48:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:23,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229871844] [2023-11-26 11:48:23,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229871844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:23,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:23,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:23,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228157564] [2023-11-26 11:48:23,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:23,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:23,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:23,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:23,560 INFO L87 Difference]: Start difference. First operand 396 states and 501 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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) [2023-11-26 11:48:24,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:24,574 INFO L93 Difference]: Finished difference Result 827 states and 1092 transitions. [2023-11-26 11:48:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:24,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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 [2023-11-26 11:48:24,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:24,584 INFO L225 Difference]: With dead ends: 827 [2023-11-26 11:48:24,584 INFO L226 Difference]: Without dead ends: 730 [2023-11-26 11:48:24,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:48:24,586 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1370 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:24,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1879 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-26 11:48:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 392. [2023-11-26 11:48:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3191489361702127) internal successors, (496), 391 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 496 transitions. [2023-11-26 11:48:24,598 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 496 transitions. Word has length 78 [2023-11-26 11:48:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:24,598 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 496 transitions. [2023-11-26 11:48:24,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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) [2023-11-26 11:48:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 496 transitions. [2023-11-26 11:48:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 11:48:24,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:24,600 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] [2023-11-26 11:48:24,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:48:24,601 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:24,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash -180251782, now seen corresponding path program 1 times [2023-11-26 11:48:24,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:24,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106567434] [2023-11-26 11:48:24,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:24,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:24,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:24,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106567434] [2023-11-26 11:48:24,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106567434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:24,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:24,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076603007] [2023-11-26 11:48:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:24,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:24,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:24,888 INFO L87 Difference]: Start difference. First operand 392 states and 496 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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) [2023-11-26 11:48:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:25,999 INFO L93 Difference]: Finished difference Result 793 states and 1043 transitions. [2023-11-26 11:48:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:48:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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 [2023-11-26 11:48:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:26,004 INFO L225 Difference]: With dead ends: 793 [2023-11-26 11:48:26,005 INFO L226 Difference]: Without dead ends: 718 [2023-11-26 11:48:26,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:48:26,006 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1937 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:26,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 1781 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:48:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-26 11:48:26,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 388. [2023-11-26 11:48:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3198924731182795) internal successors, (491), 387 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 491 transitions. [2023-11-26 11:48:26,019 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 491 transitions. Word has length 78 [2023-11-26 11:48:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:26,020 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 491 transitions. [2023-11-26 11:48:26,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 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) [2023-11-26 11:48:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 491 transitions. [2023-11-26 11:48:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:26,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:26,022 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] [2023-11-26 11:48:26,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:48:26,022 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:26,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1887565433, now seen corresponding path program 1 times [2023-11-26 11:48:26,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823930098] [2023-11-26 11:48:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:26,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823930098] [2023-11-26 11:48:26,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823930098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:26,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:26,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071856565] [2023-11-26 11:48:26,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:26,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:26,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:26,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:26,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:26,336 INFO L87 Difference]: Start difference. First operand 388 states and 491 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:27,536 INFO L93 Difference]: Finished difference Result 767 states and 1003 transitions. [2023-11-26 11:48:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2023-11-26 11:48:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:27,542 INFO L225 Difference]: With dead ends: 767 [2023-11-26 11:48:27,542 INFO L226 Difference]: Without dead ends: 702 [2023-11-26 11:48:27,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:27,544 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1706 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:27,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 1700 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:48:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-26 11:48:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 388. [2023-11-26 11:48:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3172043010752688) internal successors, (490), 387 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 490 transitions. [2023-11-26 11:48:27,563 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 490 transitions. Word has length 79 [2023-11-26 11:48:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:27,564 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 490 transitions. [2023-11-26 11:48:27,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 490 transitions. [2023-11-26 11:48:27,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:27,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:27,566 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] [2023-11-26 11:48:27,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:48:27,567 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:27,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:27,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1141656959, now seen corresponding path program 1 times [2023-11-26 11:48:27,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:27,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643505275] [2023-11-26 11:48:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643505275] [2023-11-26 11:48:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643505275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:27,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:27,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309333132] [2023-11-26 11:48:27,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:27,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:27,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:27,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:27,879 INFO L87 Difference]: Start difference. First operand 388 states and 490 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:28,808 INFO L93 Difference]: Finished difference Result 770 states and 1005 transitions. [2023-11-26 11:48:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2023-11-26 11:48:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:28,813 INFO L225 Difference]: With dead ends: 770 [2023-11-26 11:48:28,813 INFO L226 Difference]: Without dead ends: 702 [2023-11-26 11:48:28,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:28,815 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1615 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:28,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 1636 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-26 11:48:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 388. [2023-11-26 11:48:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.314516129032258) internal successors, (489), 387 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 489 transitions. [2023-11-26 11:48:28,826 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 489 transitions. Word has length 79 [2023-11-26 11:48:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:28,827 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 489 transitions. [2023-11-26 11:48:28,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 489 transitions. [2023-11-26 11:48:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:28,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:28,829 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] [2023-11-26 11:48:28,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:48:28,829 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:28,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1896793534, now seen corresponding path program 1 times [2023-11-26 11:48:28,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:28,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311217797] [2023-11-26 11:48:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:28,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:29,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311217797] [2023-11-26 11:48:29,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311217797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:29,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:29,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235938038] [2023-11-26 11:48:29,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:29,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:29,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:29,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:29,110 INFO L87 Difference]: Start difference. First operand 388 states and 489 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:30,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:30,177 INFO L93 Difference]: Finished difference Result 770 states and 1003 transitions. [2023-11-26 11:48:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:30,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2023-11-26 11:48:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:30,182 INFO L225 Difference]: With dead ends: 770 [2023-11-26 11:48:30,182 INFO L226 Difference]: Without dead ends: 702 [2023-11-26 11:48:30,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:30,185 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1269 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:30,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1888 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:48:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-26 11:48:30,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 388. [2023-11-26 11:48:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.3118279569892473) internal successors, (488), 387 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 488 transitions. [2023-11-26 11:48:30,208 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 488 transitions. Word has length 79 [2023-11-26 11:48:30,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:30,209 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 488 transitions. [2023-11-26 11:48:30,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 488 transitions. [2023-11-26 11:48:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:30,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:30,211 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] [2023-11-26 11:48:30,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:48:30,212 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:30,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash -485976660, now seen corresponding path program 1 times [2023-11-26 11:48:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378002639] [2023-11-26 11:48:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:30,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378002639] [2023-11-26 11:48:30,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378002639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:30,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:30,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:48:30,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338259452] [2023-11-26 11:48:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:30,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:48:30,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:48:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:48:30,786 INFO L87 Difference]: Start difference. First operand 388 states and 488 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2023-11-26 11:48:33,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:33,112 INFO L93 Difference]: Finished difference Result 1215 states and 1642 transitions. [2023-11-26 11:48:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:48:33,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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 [2023-11-26 11:48:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:33,126 INFO L225 Difference]: With dead ends: 1215 [2023-11-26 11:48:33,126 INFO L226 Difference]: Without dead ends: 1135 [2023-11-26 11:48:33,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-26 11:48:33,129 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3591 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:33,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 2614 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 11:48:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-11-26 11:48:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 392. [2023-11-26 11:48:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3085106382978724) internal successors, (492), 391 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 492 transitions. [2023-11-26 11:48:33,150 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 492 transitions. Word has length 79 [2023-11-26 11:48:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:33,151 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 492 transitions. [2023-11-26 11:48:33,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2023-11-26 11:48:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 492 transitions. [2023-11-26 11:48:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:33,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:33,153 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] [2023-11-26 11:48:33,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:48:33,155 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:33,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -328806928, now seen corresponding path program 1 times [2023-11-26 11:48:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:33,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860701853] [2023-11-26 11:48:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:33,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860701853] [2023-11-26 11:48:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860701853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:33,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:33,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809506371] [2023-11-26 11:48:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:33,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:33,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:33,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:33,422 INFO L87 Difference]: Start difference. First operand 392 states and 492 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:34,396 INFO L93 Difference]: Finished difference Result 771 states and 1003 transitions. [2023-11-26 11:48:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:34,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2023-11-26 11:48:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:34,404 INFO L225 Difference]: With dead ends: 771 [2023-11-26 11:48:34,404 INFO L226 Difference]: Without dead ends: 706 [2023-11-26 11:48:34,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:34,405 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1263 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:34,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1919 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-11-26 11:48:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 392. [2023-11-26 11:48:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.3058510638297873) internal successors, (491), 391 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 491 transitions. [2023-11-26 11:48:34,417 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 491 transitions. Word has length 79 [2023-11-26 11:48:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:34,417 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 491 transitions. [2023-11-26 11:48:34,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 491 transitions. [2023-11-26 11:48:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:34,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:34,419 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] [2023-11-26 11:48:34,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:48:34,420 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:34,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1594434658, now seen corresponding path program 1 times [2023-11-26 11:48:34,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:34,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052065340] [2023-11-26 11:48:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:34,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052065340] [2023-11-26 11:48:34,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052065340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:34,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:34,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399377140] [2023-11-26 11:48:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:34,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:34,693 INFO L87 Difference]: Start difference. First operand 392 states and 491 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:35,595 INFO L93 Difference]: Finished difference Result 711 states and 912 transitions. [2023-11-26 11:48:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:48:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2023-11-26 11:48:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:35,598 INFO L225 Difference]: With dead ends: 711 [2023-11-26 11:48:35,599 INFO L226 Difference]: Without dead ends: 706 [2023-11-26 11:48:35,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:48:35,600 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 1604 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:35,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1858 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:48:35,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-11-26 11:48:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 392. [2023-11-26 11:48:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 376 states have (on average 1.303191489361702) internal successors, (490), 391 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:48:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 490 transitions. [2023-11-26 11:48:35,611 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 490 transitions. Word has length 79 [2023-11-26 11:48:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:35,612 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 490 transitions. [2023-11-26 11:48:35,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2023-11-26 11:48:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 490 transitions. [2023-11-26 11:48:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 11:48:35,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:35,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:35,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:48:35,614 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-26 11:48:35,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:35,615 INFO L85 PathProgramCache]: Analyzing trace with hash 319887148, now seen corresponding path program 1 times [2023-11-26 11:48:35,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:35,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826244794] [2023-11-26 11:48:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:35,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826244794] [2023-11-26 11:48:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826244794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:35,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:35,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:48:35,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309548460] [2023-11-26 11:48:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:35,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:48:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:48:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:48:35,876 INFO L87 Difference]: Start difference. First operand 392 states and 490 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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)