./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx --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 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:38,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:38,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:25:38,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:38,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:38,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:38,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:38,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:38,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:38,560 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:38,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:38,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:38,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:38,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:38,565 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:38,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:38,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:38,566 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:38,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:38,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:38,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:38,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:38,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:38,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:38,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:38,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:38,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:38,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:38,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:38,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:38,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:38,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:38,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:38,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:38,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:38,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:38,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:38,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:38,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:38,576 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:38,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:38,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:38,577 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f [2023-11-21 22:25:38,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:38,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:38,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:38,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:38,926 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:38,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-21 22:25:42,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:42,732 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:42,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-21 22:25:42,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/data/c73ae8719/730d69409f584ce3b7be4d32713d32e0/FLAG86ea9adcd [2023-11-21 22:25:42,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/data/c73ae8719/730d69409f584ce3b7be4d32713d32e0 [2023-11-21 22:25:42,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:42,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:42,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:42,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:42,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:42,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:42" (1/1) ... [2023-11-21 22:25:42,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e19bb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:42, skipping insertion in model container [2023-11-21 22:25:42,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:42" (1/1) ... [2023-11-21 22:25:42,989 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:43,586 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-11-21 22:25:43,660 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-11-21 22:25:43,693 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-11-21 22:25:43,712 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-11-21 22:25:43,731 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-11-21 22:25:43,743 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-11-21 22:25:43,766 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-11-21 22:25:43,800 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-11-21 22:25:43,808 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-11-21 22:25:43,822 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-11-21 22:25:43,836 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-11-21 22:25:43,866 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-11-21 22:25:43,895 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-11-21 22:25:43,904 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-11-21 22:25:43,933 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-11-21 22:25:43,958 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-11-21 22:25:44,001 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-11-21 22:25:44,008 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-11-21 22:25:44,017 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-11-21 22:25:44,031 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-11-21 22:25:44,053 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-11-21 22:25:44,085 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-11-21 22:25:44,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:44,581 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:44,670 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-11-21 22:25:44,688 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-11-21 22:25:44,696 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-11-21 22:25:44,703 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-11-21 22:25:44,712 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-11-21 22:25:44,719 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-11-21 22:25:44,725 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-11-21 22:25:44,739 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-11-21 22:25:44,744 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-11-21 22:25:44,752 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-11-21 22:25:44,763 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-11-21 22:25:44,804 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-11-21 22:25:44,811 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-11-21 22:25:44,819 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-11-21 22:25:44,832 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-11-21 22:25:44,852 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-11-21 22:25:44,893 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-11-21 22:25:44,898 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-11-21 22:25:44,905 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-11-21 22:25:44,916 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-11-21 22:25:44,936 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-11-21 22:25:44,962 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_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-11-21 22:25:45,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:45,319 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:45,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45 WrapperNode [2023-11-21 22:25:45,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:45,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:45,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:45,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:45,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,582 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7077 [2023-11-21 22:25:45,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:45,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:45,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:45,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:45,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,611 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,664 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:25:45,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:45,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:45,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:45,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:45,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (1/1) ... [2023-11-21 22:25:45,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:45,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:45,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:45,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2bbb7-07d2-4d72-9a14-8ec8d1552ba4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:46,247 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:46,249 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:50,079 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:52,128 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:52,128 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:25:52,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:52 BoogieIcfgContainer [2023-11-21 22:25:52,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:52,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:52,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:52,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:52,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:42" (1/3) ... [2023-11-21 22:25:52,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ccf21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:52, skipping insertion in model container [2023-11-21 22:25:52,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:45" (2/3) ... [2023-11-21 22:25:52,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ccf21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:52, skipping insertion in model container [2023-11-21 22:25:52,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:52" (3/3) ... [2023-11-21 22:25:52,140 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-21 22:25:52,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:52,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-21 22:25:52,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:52,247 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;@62b0ce97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:52,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-21 22:25:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 1096 states, 1072 states have (on average 1.8610074626865671) internal successors, (1995), 1095 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 22:25:52,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:52,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:52,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:52,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash 714056904, now seen corresponding path program 1 times [2023-11-21 22:25:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:52,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349564994] [2023-11-21 22:25:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:52,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:53,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349564994] [2023-11-21 22:25:53,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349564994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:53,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:53,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:53,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331330661] [2023-11-21 22:25:53,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:53,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:53,196 INFO L87 Difference]: Start difference. First operand has 1096 states, 1072 states have (on average 1.8610074626865671) internal successors, (1995), 1095 states have internal predecessors, (1995), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:54,249 INFO L93 Difference]: Finished difference Result 1644 states and 2889 transitions. [2023-11-21 22:25:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:54,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-11-21 22:25:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:54,277 INFO L225 Difference]: With dead ends: 1644 [2023-11-21 22:25:54,278 INFO L226 Difference]: Without dead ends: 849 [2023-11-21 22:25:54,284 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 [2023-11-21 22:25:54,288 INFO L413 NwaCegarLoop]: 983 mSDtfsCounter, 4343 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:54,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4343 Valid, 1023 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:25:54,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-11-21 22:25:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2023-11-21 22:25:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 827 states have (on average 1.2962515114873034) internal successors, (1072), 848 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1072 transitions. [2023-11-21 22:25:54,400 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1072 transitions. Word has length 85 [2023-11-21 22:25:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:54,401 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1072 transitions. [2023-11-21 22:25:54,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:54,402 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1072 transitions. [2023-11-21 22:25:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-21 22:25:54,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:54,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:25:54,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:54,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash -32531416, now seen corresponding path program 1 times [2023-11-21 22:25:54,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:54,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421464956] [2023-11-21 22:25:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:54,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421464956] [2023-11-21 22:25:54,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421464956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:54,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:54,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:54,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456049833] [2023-11-21 22:25:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:54,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:54,912 INFO L87 Difference]: Start difference. First operand 849 states and 1072 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:55,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:55,543 INFO L93 Difference]: Finished difference Result 1390 states and 1805 transitions. [2023-11-21 22:25:55,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2023-11-21 22:25:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:55,549 INFO L225 Difference]: With dead ends: 1390 [2023-11-21 22:25:55,550 INFO L226 Difference]: Without dead ends: 718 [2023-11-21 22:25:55,551 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 [2023-11-21 22:25:55,553 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2720 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:55,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 534 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:25:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-21 22:25:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2023-11-21 22:25:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 696 states have (on average 1.3275862068965518) internal successors, (924), 717 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 924 transitions. [2023-11-21 22:25:55,587 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 924 transitions. Word has length 86 [2023-11-21 22:25:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:55,588 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 924 transitions. [2023-11-21 22:25:55,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 924 transitions. [2023-11-21 22:25:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-21 22:25:55,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:55,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:55,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:25:55,594 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:55,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -15254791, now seen corresponding path program 1 times [2023-11-21 22:25:55,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:55,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002897044] [2023-11-21 22:25:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:55,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:55,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002897044] [2023-11-21 22:25:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002897044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:55,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:55,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:55,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590790962] [2023-11-21 22:25:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:55,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:55,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:55,896 INFO L87 Difference]: Start difference. First operand 718 states and 924 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:56,687 INFO L93 Difference]: Finished difference Result 1259 states and 1656 transitions. [2023-11-21 22:25:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:56,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2023-11-21 22:25:56,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:56,693 INFO L225 Difference]: With dead ends: 1259 [2023-11-21 22:25:56,693 INFO L226 Difference]: Without dead ends: 678 [2023-11-21 22:25:56,694 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 [2023-11-21 22:25:56,696 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 2490 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:56,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 439 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:25:56,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-21 22:25:56,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2023-11-21 22:25:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.333841463414634) internal successors, (875), 677 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:56,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 875 transitions. [2023-11-21 22:25:56,718 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 875 transitions. Word has length 87 [2023-11-21 22:25:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:56,718 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 875 transitions. [2023-11-21 22:25:56,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 875 transitions. [2023-11-21 22:25:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-21 22:25:56,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:56,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:56,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:25:56,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:56,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash -792677777, now seen corresponding path program 1 times [2023-11-21 22:25:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998839087] [2023-11-21 22:25:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:57,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998839087] [2023-11-21 22:25:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998839087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:57,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:57,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:57,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352928777] [2023-11-21 22:25:57,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:57,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:57,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:57,020 INFO L87 Difference]: Start difference. First operand 678 states and 875 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:57,599 INFO L93 Difference]: Finished difference Result 1219 states and 1606 transitions. [2023-11-21 22:25:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2023-11-21 22:25:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:57,603 INFO L225 Difference]: With dead ends: 1219 [2023-11-21 22:25:57,604 INFO L226 Difference]: Without dead ends: 640 [2023-11-21 22:25:57,604 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 [2023-11-21 22:25:57,606 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2405 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:57,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 471 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:25:57,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-11-21 22:25:57,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2023-11-21 22:25:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.3462783171521036) internal successors, (832), 639 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 832 transitions. [2023-11-21 22:25:57,632 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 832 transitions. Word has length 88 [2023-11-21 22:25:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:57,633 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 832 transitions. [2023-11-21 22:25:57,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 832 transitions. [2023-11-21 22:25:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-21 22:25:57,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:57,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:57,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:25:57,639 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:57,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -98223662, now seen corresponding path program 1 times [2023-11-21 22:25:57,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:57,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877325895] [2023-11-21 22:25:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:57,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:57,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877325895] [2023-11-21 22:25:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877325895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:57,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821030224] [2023-11-21 22:25:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:57,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:57,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:57,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:57,808 INFO L87 Difference]: Start difference. First operand 640 states and 832 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:58,304 INFO L93 Difference]: Finished difference Result 1181 states and 1562 transitions. [2023-11-21 22:25:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:58,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2023-11-21 22:25:58,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:58,309 INFO L225 Difference]: With dead ends: 1181 [2023-11-21 22:25:58,309 INFO L226 Difference]: Without dead ends: 615 [2023-11-21 22:25:58,310 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 [2023-11-21 22:25:58,311 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 2348 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:58,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 458 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:25:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-11-21 22:25:58,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2023-11-21 22:25:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 593 states have (on average 1.3558178752107926) internal successors, (804), 614 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:58,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 804 transitions. [2023-11-21 22:25:58,328 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 804 transitions. Word has length 89 [2023-11-21 22:25:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:58,328 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 804 transitions. [2023-11-21 22:25:58,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 804 transitions. [2023-11-21 22:25:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-21 22:25:58,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:58,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:58,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:25:58,331 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:58,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash -887858356, now seen corresponding path program 1 times [2023-11-21 22:25:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643570285] [2023-11-21 22:25:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:58,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:58,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:58,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643570285] [2023-11-21 22:25:58,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643570285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:58,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:58,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:58,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428101550] [2023-11-21 22:25:58,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:58,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:58,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:58,553 INFO L87 Difference]: Start difference. First operand 615 states and 804 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:59,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:59,100 INFO L93 Difference]: Finished difference Result 1156 states and 1533 transitions. [2023-11-21 22:25:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:59,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-11-21 22:25:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:59,105 INFO L225 Difference]: With dead ends: 1156 [2023-11-21 22:25:59,105 INFO L226 Difference]: Without dead ends: 607 [2023-11-21 22:25:59,106 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 [2023-11-21 22:25:59,107 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 2271 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:59,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 434 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:25:59,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-11-21 22:25:59,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2023-11-21 22:25:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3572649572649573) internal successors, (794), 606 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:59,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 794 transitions. [2023-11-21 22:25:59,123 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 794 transitions. Word has length 90 [2023-11-21 22:25:59,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:59,124 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 794 transitions. [2023-11-21 22:25:59,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:59,124 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 794 transitions. [2023-11-21 22:25:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:25:59,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:59,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:59,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:25:59,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:25:59,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1395319451, now seen corresponding path program 1 times [2023-11-21 22:25:59,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:59,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733876683] [2023-11-21 22:25:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:59,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:59,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:59,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733876683] [2023-11-21 22:25:59,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733876683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:59,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:59,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:25:59,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858614719] [2023-11-21 22:25:59,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:59,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:25:59,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:59,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:25:59,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:25:59,631 INFO L87 Difference]: Start difference. First operand 607 states and 794 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:01,146 INFO L93 Difference]: Finished difference Result 1097 states and 1427 transitions. [2023-11-21 22:26:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:01,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-11-21 22:26:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:01,153 INFO L225 Difference]: With dead ends: 1097 [2023-11-21 22:26:01,153 INFO L226 Difference]: Without dead ends: 1022 [2023-11-21 22:26:01,154 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 [2023-11-21 22:26:01,155 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 3482 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3482 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:01,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3482 Valid, 2003 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:26:01,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-21 22:26:01,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 607. [2023-11-21 22:26:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3555555555555556) internal successors, (793), 606 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 793 transitions. [2023-11-21 22:26:01,178 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 793 transitions. Word has length 91 [2023-11-21 22:26:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:01,178 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 793 transitions. [2023-11-21 22:26:01,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 793 transitions. [2023-11-21 22:26:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:26:01,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:01,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:01,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:26:01,181 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:01,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash 897316485, now seen corresponding path program 1 times [2023-11-21 22:26:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971525732] [2023-11-21 22:26:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:01,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:01,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971525732] [2023-11-21 22:26:01,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971525732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:01,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:01,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-21 22:26:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629302186] [2023-11-21 22:26:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:01,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:26:01,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:01,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:26:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:26:01,854 INFO L87 Difference]: Start difference. First operand 607 states and 793 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:03,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:03,639 INFO L93 Difference]: Finished difference Result 1192 states and 1541 transitions. [2023-11-21 22:26:03,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-21 22:26:03,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-11-21 22:26:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:03,646 INFO L225 Difference]: With dead ends: 1192 [2023-11-21 22:26:03,646 INFO L226 Difference]: Without dead ends: 1108 [2023-11-21 22:26:03,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:26:03,648 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 4534 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4534 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:03,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4534 Valid, 2507 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-21 22:26:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-11-21 22:26:03,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 616. [2023-11-21 22:26:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 594 states have (on average 1.3552188552188553) internal successors, (805), 615 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 805 transitions. [2023-11-21 22:26:03,667 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 805 transitions. Word has length 91 [2023-11-21 22:26:03,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:03,668 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 805 transitions. [2023-11-21 22:26:03,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 805 transitions. [2023-11-21 22:26:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:26:03,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:03,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:03,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:26:03,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:03,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash 488471257, now seen corresponding path program 1 times [2023-11-21 22:26:03,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:03,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135947580] [2023-11-21 22:26:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:03,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:04,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:04,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135947580] [2023-11-21 22:26:04,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135947580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:04,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:04,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:04,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199777400] [2023-11-21 22:26:04,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:04,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:04,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:04,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:04,136 INFO L87 Difference]: Start difference. First operand 616 states and 805 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:05,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:05,643 INFO L93 Difference]: Finished difference Result 1198 states and 1568 transitions. [2023-11-21 22:26:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:26:05,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-11-21 22:26:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:05,652 INFO L225 Difference]: With dead ends: 1198 [2023-11-21 22:26:05,652 INFO L226 Difference]: Without dead ends: 1034 [2023-11-21 22:26:05,653 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 [2023-11-21 22:26:05,656 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 2789 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2789 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:05,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2789 Valid, 1994 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:26:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-11-21 22:26:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 607. [2023-11-21 22:26:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.353846153846154) internal successors, (792), 606 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 792 transitions. [2023-11-21 22:26:05,678 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 792 transitions. Word has length 91 [2023-11-21 22:26:05,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:05,679 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 792 transitions. [2023-11-21 22:26:05,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:05,679 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 792 transitions. [2023-11-21 22:26:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:26:05,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:05,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:05,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:26:05,684 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:05,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:05,684 INFO L85 PathProgramCache]: Analyzing trace with hash -977341548, now seen corresponding path program 1 times [2023-11-21 22:26:05,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:05,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039939652] [2023-11-21 22:26:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:06,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039939652] [2023-11-21 22:26:06,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039939652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:06,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:06,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 22:26:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215070823] [2023-11-21 22:26:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:06,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:26:06,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:26:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:26:06,296 INFO L87 Difference]: Start difference. First operand 607 states and 792 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:07,822 INFO L93 Difference]: Finished difference Result 1102 states and 1429 transitions. [2023-11-21 22:26:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:26:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-11-21 22:26:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:07,828 INFO L225 Difference]: With dead ends: 1102 [2023-11-21 22:26:07,828 INFO L226 Difference]: Without dead ends: 1018 [2023-11-21 22:26:07,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:26:07,830 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 2419 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:07,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 2342 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:26:07,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2023-11-21 22:26:07,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 607. [2023-11-21 22:26:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3521367521367522) internal successors, (791), 606 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 791 transitions. [2023-11-21 22:26:07,849 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 791 transitions. Word has length 91 [2023-11-21 22:26:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:07,849 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 791 transitions. [2023-11-21 22:26:07,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 791 transitions. [2023-11-21 22:26:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-21 22:26:07,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:07,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:07,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:26:07,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:07,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1386186776, now seen corresponding path program 1 times [2023-11-21 22:26:07,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:07,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567779491] [2023-11-21 22:26:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:07,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:08,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:08,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567779491] [2023-11-21 22:26:08,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567779491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:08,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:08,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:26:08,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714187651] [2023-11-21 22:26:08,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:08,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:26:08,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:26:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:26:08,218 INFO L87 Difference]: Start difference. First operand 607 states and 791 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:09,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:09,176 INFO L93 Difference]: Finished difference Result 1124 states and 1412 transitions. [2023-11-21 22:26:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:26:09,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-11-21 22:26:09,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:09,181 INFO L225 Difference]: With dead ends: 1124 [2023-11-21 22:26:09,181 INFO L226 Difference]: Without dead ends: 802 [2023-11-21 22:26:09,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:26:09,183 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2558 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:09,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 947 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:26:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-11-21 22:26:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 607. [2023-11-21 22:26:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3504273504273505) internal successors, (790), 606 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 790 transitions. [2023-11-21 22:26:09,200 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 790 transitions. Word has length 91 [2023-11-21 22:26:09,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:09,201 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 790 transitions. [2023-11-21 22:26:09,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:09,201 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 790 transitions. [2023-11-21 22:26:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:09,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:09,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:09,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:26:09,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:09,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash 212783759, now seen corresponding path program 1 times [2023-11-21 22:26:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428370659] [2023-11-21 22:26:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:09,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428370659] [2023-11-21 22:26:09,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428370659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:09,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:09,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26398965] [2023-11-21 22:26:09,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:09,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:09,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:09,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:09,615 INFO L87 Difference]: Start difference. First operand 607 states and 790 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:11,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:11,122 INFO L93 Difference]: Finished difference Result 1232 states and 1598 transitions. [2023-11-21 22:26:11,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:26:11,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:11,128 INFO L225 Difference]: With dead ends: 1232 [2023-11-21 22:26:11,128 INFO L226 Difference]: Without dead ends: 1034 [2023-11-21 22:26:11,129 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 [2023-11-21 22:26:11,130 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 2770 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:11,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 2620 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:26:11,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-11-21 22:26:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 607. [2023-11-21 22:26:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3487179487179488) internal successors, (789), 606 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:11,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 789 transitions. [2023-11-21 22:26:11,148 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 789 transitions. Word has length 93 [2023-11-21 22:26:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:11,149 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 789 transitions. [2023-11-21 22:26:11,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 789 transitions. [2023-11-21 22:26:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:11,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:11,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:11,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:26:11,151 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:11,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 426483258, now seen corresponding path program 1 times [2023-11-21 22:26:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:11,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369936084] [2023-11-21 22:26:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:11,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:11,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369936084] [2023-11-21 22:26:11,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369936084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:11,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:11,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589655451] [2023-11-21 22:26:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:11,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:11,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:11,504 INFO L87 Difference]: Start difference. First operand 607 states and 789 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:12,785 INFO L93 Difference]: Finished difference Result 1097 states and 1421 transitions. [2023-11-21 22:26:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:12,791 INFO L225 Difference]: With dead ends: 1097 [2023-11-21 22:26:12,791 INFO L226 Difference]: Without dead ends: 1022 [2023-11-21 22:26:12,792 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 [2023-11-21 22:26:12,793 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 3331 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:12,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3331 Valid, 2058 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:26:12,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-21 22:26:12,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 607. [2023-11-21 22:26:12,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.347008547008547) internal successors, (788), 606 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:12,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 788 transitions. [2023-11-21 22:26:12,811 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 788 transitions. Word has length 93 [2023-11-21 22:26:12,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:12,811 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 788 transitions. [2023-11-21 22:26:12,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:12,811 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 788 transitions. [2023-11-21 22:26:12,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:12,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:12,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:12,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:26:12,814 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:12,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:12,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1453025680, now seen corresponding path program 1 times [2023-11-21 22:26:12,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:12,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420300164] [2023-11-21 22:26:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:12,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:13,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:13,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420300164] [2023-11-21 22:26:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420300164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:13,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:13,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823630563] [2023-11-21 22:26:13,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:13,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:13,153 INFO L87 Difference]: Start difference. First operand 607 states and 788 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:14,523 INFO L93 Difference]: Finished difference Result 1106 states and 1427 transitions. [2023-11-21 22:26:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:14,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:14,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:14,529 INFO L225 Difference]: With dead ends: 1106 [2023-11-21 22:26:14,529 INFO L226 Difference]: Without dead ends: 1022 [2023-11-21 22:26:14,530 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 [2023-11-21 22:26:14,531 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 3414 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:14,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3414 Valid, 2046 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:26:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-21 22:26:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 607. [2023-11-21 22:26:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3452991452991454) internal successors, (787), 606 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 787 transitions. [2023-11-21 22:26:14,610 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 787 transitions. Word has length 93 [2023-11-21 22:26:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:14,610 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 787 transitions. [2023-11-21 22:26:14,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 787 transitions. [2023-11-21 22:26:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:14,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:14,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:14,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:26:14,615 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:14,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:14,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1861870908, now seen corresponding path program 1 times [2023-11-21 22:26:14,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:14,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89408932] [2023-11-21 22:26:14,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:14,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:14,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89408932] [2023-11-21 22:26:14,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89408932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:14,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:14,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:14,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406544304] [2023-11-21 22:26:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:14,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:14,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:14,978 INFO L87 Difference]: Start difference. First operand 607 states and 787 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:16,582 INFO L93 Difference]: Finished difference Result 1139 states and 1476 transitions. [2023-11-21 22:26:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:16,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:16,588 INFO L225 Difference]: With dead ends: 1139 [2023-11-21 22:26:16,588 INFO L226 Difference]: Without dead ends: 1025 [2023-11-21 22:26:16,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:26:16,591 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 1874 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:16,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 2886 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-21 22:26:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-21 22:26:16,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 607. [2023-11-21 22:26:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3435897435897435) internal successors, (786), 606 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 786 transitions. [2023-11-21 22:26:16,614 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 786 transitions. Word has length 93 [2023-11-21 22:26:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:16,615 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 786 transitions. [2023-11-21 22:26:16,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 786 transitions. [2023-11-21 22:26:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:16,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:16,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:16,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:26:16,618 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:16,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1321108389, now seen corresponding path program 1 times [2023-11-21 22:26:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456502890] [2023-11-21 22:26:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456502890] [2023-11-21 22:26:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456502890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527386398] [2023-11-21 22:26:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:17,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:17,026 INFO L87 Difference]: Start difference. First operand 607 states and 786 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:18,293 INFO L93 Difference]: Finished difference Result 1106 states and 1426 transitions. [2023-11-21 22:26:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:18,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:18,299 INFO L225 Difference]: With dead ends: 1106 [2023-11-21 22:26:18,300 INFO L226 Difference]: Without dead ends: 1022 [2023-11-21 22:26:18,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:26:18,301 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 3459 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:18,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 2110 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:26:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-21 22:26:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 607. [2023-11-21 22:26:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3418803418803418) internal successors, (785), 606 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 785 transitions. [2023-11-21 22:26:18,323 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 785 transitions. Word has length 93 [2023-11-21 22:26:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:18,324 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 785 transitions. [2023-11-21 22:26:18,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 785 transitions. [2023-11-21 22:26:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:18,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:18,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:18,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:26:18,328 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:18,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash 912263161, now seen corresponding path program 1 times [2023-11-21 22:26:18,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:18,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290010499] [2023-11-21 22:26:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:18,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:18,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:18,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290010499] [2023-11-21 22:26:18,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290010499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:18,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:18,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:18,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006145166] [2023-11-21 22:26:18,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:18,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:18,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:18,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:18,722 INFO L87 Difference]: Start difference. First operand 607 states and 785 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:20,123 INFO L93 Difference]: Finished difference Result 1139 states and 1476 transitions. [2023-11-21 22:26:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:20,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:20,129 INFO L225 Difference]: With dead ends: 1139 [2023-11-21 22:26:20,130 INFO L226 Difference]: Without dead ends: 1025 [2023-11-21 22:26:20,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:26:20,131 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 1920 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:20,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 2745 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:26:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-21 22:26:20,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 607. [2023-11-21 22:26:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.34017094017094) internal successors, (784), 606 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 784 transitions. [2023-11-21 22:26:20,149 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 784 transitions. Word has length 93 [2023-11-21 22:26:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:20,149 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 784 transitions. [2023-11-21 22:26:20,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 784 transitions. [2023-11-21 22:26:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:20,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:20,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:26:20,152 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:20,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1094349969, now seen corresponding path program 1 times [2023-11-21 22:26:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454180114] [2023-11-21 22:26:20,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:20,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454180114] [2023-11-21 22:26:20,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454180114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:20,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:20,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:20,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287844585] [2023-11-21 22:26:20,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:20,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:20,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:20,463 INFO L87 Difference]: Start difference. First operand 607 states and 784 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:21,783 INFO L93 Difference]: Finished difference Result 1097 states and 1415 transitions. [2023-11-21 22:26:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:26:21,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-21 22:26:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:21,789 INFO L225 Difference]: With dead ends: 1097 [2023-11-21 22:26:21,789 INFO L226 Difference]: Without dead ends: 1022 [2023-11-21 22:26:21,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:26:21,791 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 2975 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:21,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 2437 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2003 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:26:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-21 22:26:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 607. [2023-11-21 22:26:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 585 states have (on average 1.3384615384615384) internal successors, (783), 606 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 783 transitions. [2023-11-21 22:26:21,809 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 783 transitions. Word has length 93 [2023-11-21 22:26:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:21,810 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 783 transitions. [2023-11-21 22:26:21,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 783 transitions. [2023-11-21 22:26:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:26:21,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:21,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:21,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:26:21,813 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-21 22:26:21,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -742152744, now seen corresponding path program 1 times [2023-11-21 22:26:21,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:21,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317213633] [2023-11-21 22:26:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:22,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:22,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317213633] [2023-11-21 22:26:22,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317213633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:22,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:22,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:22,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623748590] [2023-11-21 22:26:22,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:22,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:26:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:26:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:26:22,228 INFO L87 Difference]: Start difference. First operand 607 states and 783 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)