./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:58,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:58,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:58,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:58,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:58,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:58,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:58,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:58,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:58,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:58,606 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:58,606 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:58,607 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:58,608 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:58,608 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:58,609 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:58,610 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:58,610 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:58,611 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:58,612 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:58,612 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:58,613 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:58,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:58,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:58,615 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:58,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:58,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:58,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:58,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:58,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:58,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:58,619 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:58,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:58,620 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:58,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:58,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:58,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:58,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:58,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:58,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:58,622 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:58,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:58,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:58,623 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:58,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:58,624 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c [2023-11-12 00:47:58,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:58,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:58,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:58,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:58,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:58,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-12 00:48:02,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:02,795 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:02,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-12 00:48:02,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/data/3e6ea519a/9087ac1d2cfd48f6a8067d4fcb2c9baf/FLAG178a3953c [2023-11-12 00:48:02,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/data/3e6ea519a/9087ac1d2cfd48f6a8067d4fcb2c9baf [2023-11-12 00:48:02,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:02,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:02,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:02,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:02,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:02,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:02" (1/1) ... [2023-11-12 00:48:02,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdced7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:02, skipping insertion in model container [2023-11-12 00:48:02,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:02" (1/1) ... [2023-11-12 00:48:03,137 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:04,155 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-11-12 00:48:04,321 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-11-12 00:48:04,399 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-11-12 00:48:04,436 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-11-12 00:48:04,453 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-11-12 00:48:04,469 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-11-12 00:48:04,626 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-11-12 00:48:04,685 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-11-12 00:48:04,720 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-11-12 00:48:04,792 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-11-12 00:48:04,807 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-11-12 00:48:04,875 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-11-12 00:48:04,904 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-11-12 00:48:04,929 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-11-12 00:48:04,944 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-11-12 00:48:04,961 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-11-12 00:48:04,977 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-11-12 00:48:04,993 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-11-12 00:48:05,008 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-11-12 00:48:05,023 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-11-12 00:48:05,038 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-11-12 00:48:05,053 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-11-12 00:48:05,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:05,144 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:05,401 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-11-12 00:48:05,494 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-11-12 00:48:05,574 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-11-12 00:48:05,601 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-11-12 00:48:05,615 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-11-12 00:48:05,628 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-11-12 00:48:05,718 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-11-12 00:48:05,765 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-11-12 00:48:05,795 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-11-12 00:48:05,809 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-11-12 00:48:05,823 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-11-12 00:48:05,874 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-11-12 00:48:05,901 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-11-12 00:48:05,914 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-11-12 00:48:05,927 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-11-12 00:48:05,943 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-11-12 00:48:05,957 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-11-12 00:48:05,971 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-11-12 00:48:05,985 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-11-12 00:48:05,999 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-11-12 00:48:06,012 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-11-12 00:48:06,025 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_99ff927b-5ba9-4efb-a743-bf49810ff10e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-11-12 00:48:06,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:06,105 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:06,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06 WrapperNode [2023-11-12 00:48:06,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:06,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:06,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:06,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:06,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,474 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12196 [2023-11-12 00:48:06,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:06,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:06,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:06,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:06,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:06,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:06,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:06,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:06,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (1/1) ... [2023-11-12 00:48:06,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:06,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:06,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:06,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ff927b-5ba9-4efb-a743-bf49810ff10e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:07,276 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:07,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:13,018 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:13,632 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:13,632 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:48:13,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:13 BoogieIcfgContainer [2023-11-12 00:48:13,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:13,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:13,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:13,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:13,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:02" (1/3) ... [2023-11-12 00:48:13,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3608d64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:13, skipping insertion in model container [2023-11-12 00:48:13,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:06" (2/3) ... [2023-11-12 00:48:13,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3608d64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:13, skipping insertion in model container [2023-11-12 00:48:13,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:13" (3/3) ... [2023-11-12 00:48:13,648 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-12 00:48:13,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:13,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 00:48:13,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:13,783 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=FINITE_AUTOMATA, 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;@31b45bd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:13,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 00:48:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 2311 states, 2288 states have (on average 1.8229895104895104) internal successors, (4171), 2310 states have internal predecessors, (4171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:48:13,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:13,831 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] [2023-11-12 00:48:13,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:13,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 474104121, now seen corresponding path program 1 times [2023-11-12 00:48:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:13,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076729050] [2023-11-12 00:48:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:13,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:14,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:14,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076729050] [2023-11-12 00:48:14,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076729050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:14,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:14,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:14,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149850396] [2023-11-12 00:48:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:14,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:14,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:14,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:14,682 INFO L87 Difference]: Start difference. First operand has 2311 states, 2288 states have (on average 1.8229895104895104) internal successors, (4171), 2310 states have internal predecessors, (4171), 0 states have call successors, (0), 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) [2023-11-12 00:48:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:16,904 INFO L93 Difference]: Finished difference Result 2737 states and 4863 transitions. [2023-11-12 00:48:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:16,907 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 [2023-11-12 00:48:16,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:16,941 INFO L225 Difference]: With dead ends: 2737 [2023-11-12 00:48:16,941 INFO L226 Difference]: Without dead ends: 1585 [2023-11-12 00:48:16,951 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 [2023-11-12 00:48:16,960 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 8266 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8266 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:16,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8266 Valid, 1524 Invalid, 1338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 00:48:16,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-12 00:48:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2023-11-12 00:48:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1563 states have (on average 1.3122200895713372) internal successors, (2051), 1584 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2051 transitions. [2023-11-12 00:48:17,084 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2051 transitions. Word has length 85 [2023-11-12 00:48:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:17,085 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2051 transitions. [2023-11-12 00:48:17,086 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) [2023-11-12 00:48:17,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2051 transitions. [2023-11-12 00:48:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:48:17,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:17,094 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] [2023-11-12 00:48:17,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:17,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:17,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1379625602, now seen corresponding path program 1 times [2023-11-12 00:48:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581765638] [2023-11-12 00:48:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:17,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581765638] [2023-11-12 00:48:17,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581765638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:17,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:17,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:17,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763392636] [2023-11-12 00:48:17,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:17,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:17,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:17,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:17,411 INFO L87 Difference]: Start difference. First operand 1585 states and 2051 transitions. 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) [2023-11-12 00:48:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:18,947 INFO L93 Difference]: Finished difference Result 2213 states and 2882 transitions. [2023-11-12 00:48:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:18,948 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 [2023-11-12 00:48:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:18,956 INFO L225 Difference]: With dead ends: 2213 [2023-11-12 00:48:18,957 INFO L226 Difference]: Without dead ends: 1457 [2023-11-12 00:48:18,958 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 [2023-11-12 00:48:18,961 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 5584 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5584 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:18,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5584 Valid, 811 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-12 00:48:18,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-12 00:48:18,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2023-11-12 00:48:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1435 states have (on average 1.3282229965156795) internal successors, (1906), 1456 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1906 transitions. [2023-11-12 00:48:19,002 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1906 transitions. Word has length 85 [2023-11-12 00:48:19,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:19,004 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1906 transitions. [2023-11-12 00:48:19,005 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) [2023-11-12 00:48:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1906 transitions. [2023-11-12 00:48:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:48:19,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:19,014 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] [2023-11-12 00:48:19,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:19,015 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:19,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash -546397045, now seen corresponding path program 1 times [2023-11-12 00:48:19,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:19,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251437292] [2023-11-12 00:48:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:19,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251437292] [2023-11-12 00:48:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251437292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:19,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:19,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:19,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229141135] [2023-11-12 00:48:19,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:19,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:19,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:19,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:19,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:19,273 INFO L87 Difference]: Start difference. First operand 1457 states and 1906 transitions. 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) [2023-11-12 00:48:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:20,443 INFO L93 Difference]: Finished difference Result 1957 states and 2560 transitions. [2023-11-12 00:48:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:20,444 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 [2023-11-12 00:48:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:20,451 INFO L225 Difference]: With dead ends: 1957 [2023-11-12 00:48:20,452 INFO L226 Difference]: Without dead ends: 1217 [2023-11-12 00:48:20,453 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 [2023-11-12 00:48:20,455 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 4759 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:20,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4759 Valid, 733 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:48:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-11-12 00:48:20,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2023-11-12 00:48:20,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1195 states have (on average 1.3464435146443514) internal successors, (1609), 1216 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1609 transitions. [2023-11-12 00:48:20,485 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1609 transitions. Word has length 85 [2023-11-12 00:48:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:20,486 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 1609 transitions. [2023-11-12 00:48:20,486 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) [2023-11-12 00:48:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1609 transitions. [2023-11-12 00:48:20,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 00:48:20,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:20,490 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] [2023-11-12 00:48:20,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:48:20,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:20,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash 828162727, now seen corresponding path program 1 times [2023-11-12 00:48:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708491489] [2023-11-12 00:48:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:20,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:20,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708491489] [2023-11-12 00:48:20,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708491489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:20,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:20,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:20,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164602518] [2023-11-12 00:48:20,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:20,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:20,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:20,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:20,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:20,663 INFO L87 Difference]: Start difference. First operand 1217 states and 1609 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) [2023-11-12 00:48:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:21,798 INFO L93 Difference]: Finished difference Result 1752 states and 2322 transitions. [2023-11-12 00:48:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:21,799 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 [2023-11-12 00:48:21,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:21,807 INFO L225 Difference]: With dead ends: 1752 [2023-11-12 00:48:21,807 INFO L226 Difference]: Without dead ends: 1126 [2023-11-12 00:48:21,808 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 [2023-11-12 00:48:21,813 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 4449 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4449 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:21,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4449 Valid, 692 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 00:48:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2023-11-12 00:48:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2023-11-12 00:48:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1104 states have (on average 1.3596014492753623) internal successors, (1501), 1125 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1501 transitions. [2023-11-12 00:48:21,844 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1501 transitions. Word has length 86 [2023-11-12 00:48:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1501 transitions. [2023-11-12 00:48:21,844 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) [2023-11-12 00:48:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1501 transitions. [2023-11-12 00:48:21,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 00:48:21,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:21,852 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] [2023-11-12 00:48:21,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:48:21,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:21,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:21,854 INFO L85 PathProgramCache]: Analyzing trace with hash -379387896, now seen corresponding path program 1 times [2023-11-12 00:48:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:21,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172895152] [2023-11-12 00:48:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:22,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172895152] [2023-11-12 00:48:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172895152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:22,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:22,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:22,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715250509] [2023-11-12 00:48:22,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:22,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:22,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:22,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:22,083 INFO L87 Difference]: Start difference. First operand 1126 states and 1501 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) [2023-11-12 00:48:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:22,894 INFO L93 Difference]: Finished difference Result 1418 states and 1849 transitions. [2023-11-12 00:48:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:22,894 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 [2023-11-12 00:48:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:22,899 INFO L225 Difference]: With dead ends: 1418 [2023-11-12 00:48:22,900 INFO L226 Difference]: Without dead ends: 861 [2023-11-12 00:48:22,901 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 [2023-11-12 00:48:22,902 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 3330 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:22,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3330 Valid, 547 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 00:48:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-11-12 00:48:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-11-12 00:48:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 839 states have (on average 1.3623361144219308) internal successors, (1143), 860 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1143 transitions. [2023-11-12 00:48:22,922 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1143 transitions. Word has length 87 [2023-11-12 00:48:22,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:22,922 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1143 transitions. [2023-11-12 00:48:22,923 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) [2023-11-12 00:48:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1143 transitions. [2023-11-12 00:48:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-12 00:48:22,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:22,926 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] [2023-11-12 00:48:22,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:48:22,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:22,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash -211366857, now seen corresponding path program 1 times [2023-11-12 00:48:22,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:22,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713832979] [2023-11-12 00:48:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:22,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:23,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:23,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713832979] [2023-11-12 00:48:23,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713832979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:23,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:23,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:23,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222284821] [2023-11-12 00:48:23,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:23,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:23,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:23,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:23,135 INFO L87 Difference]: Start difference. First operand 861 states and 1143 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) [2023-11-12 00:48:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:23,673 INFO L93 Difference]: Finished difference Result 1023 states and 1312 transitions. [2023-11-12 00:48:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:48:23,673 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 [2023-11-12 00:48:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:23,677 INFO L225 Difference]: With dead ends: 1023 [2023-11-12 00:48:23,677 INFO L226 Difference]: Without dead ends: 602 [2023-11-12 00:48:23,678 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 [2023-11-12 00:48:23,679 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 2257 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:23,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 425 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:48:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-12 00:48:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2023-11-12 00:48:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.360344827586207) internal successors, (789), 601 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) [2023-11-12 00:48:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 789 transitions. [2023-11-12 00:48:23,693 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 789 transitions. Word has length 88 [2023-11-12 00:48:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:23,693 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 789 transitions. [2023-11-12 00:48:23,693 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) [2023-11-12 00:48:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 789 transitions. [2023-11-12 00:48:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:48:23,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:23,696 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] [2023-11-12 00:48:23,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:48:23,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:23,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash 328508839, now seen corresponding path program 1 times [2023-11-12 00:48:23,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:23,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868006131] [2023-11-12 00:48:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:24,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:24,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868006131] [2023-11-12 00:48:24,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868006131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:24,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:24,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 00:48:24,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144222909] [2023-11-12 00:48:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:24,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 00:48:24,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:24,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 00:48:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-12 00:48:24,423 INFO L87 Difference]: Start difference. First operand 602 states and 789 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 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) [2023-11-12 00:48:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:26,650 INFO L93 Difference]: Finished difference Result 1110 states and 1440 transitions. [2023-11-12 00:48:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 00:48:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 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 [2023-11-12 00:48:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:26,662 INFO L225 Difference]: With dead ends: 1110 [2023-11-12 00:48:26,662 INFO L226 Difference]: Without dead ends: 1051 [2023-11-12 00:48:26,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-11-12 00:48:26,667 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 3645 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:26,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 2593 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:48:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2023-11-12 00:48:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 615. [2023-11-12 00:48:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 593 states have (on average 1.3625632377740304) internal successors, (808), 614 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 808 transitions. [2023-11-12 00:48:26,689 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 808 transitions. Word has length 89 [2023-11-12 00:48:26,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:26,689 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 808 transitions. [2023-11-12 00:48:26,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 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) [2023-11-12 00:48:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 808 transitions. [2023-11-12 00:48:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:48:26,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:26,692 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] [2023-11-12 00:48:26,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:48:26,692 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:26,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:26,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1518979119, now seen corresponding path program 1 times [2023-11-12 00:48:26,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:26,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319668433] [2023-11-12 00:48:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:26,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:27,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:27,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319668433] [2023-11-12 00:48:27,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319668433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:27,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:27,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336739963] [2023-11-12 00:48:27,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:27,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:27,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:27,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:27,258 INFO L87 Difference]: Start difference. First operand 615 states and 808 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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) [2023-11-12 00:48:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:29,000 INFO L93 Difference]: Finished difference Result 1181 states and 1552 transitions. [2023-11-12 00:48:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:48:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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 [2023-11-12 00:48:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:29,007 INFO L225 Difference]: With dead ends: 1181 [2023-11-12 00:48:29,007 INFO L226 Difference]: Without dead ends: 1020 [2023-11-12 00:48:29,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:48:29,009 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 2817 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:29,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 2460 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 00:48:29,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-11-12 00:48:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 602. [2023-11-12 00:48:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.3586206896551725) internal successors, (788), 601 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) [2023-11-12 00:48:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 788 transitions. [2023-11-12 00:48:29,026 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 788 transitions. Word has length 89 [2023-11-12 00:48:29,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:29,026 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 788 transitions. [2023-11-12 00:48:29,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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) [2023-11-12 00:48:29,027 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 788 transitions. [2023-11-12 00:48:29,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:48:29,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:29,029 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] [2023-11-12 00:48:29,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:48:29,029 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:29,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1669555108, now seen corresponding path program 1 times [2023-11-12 00:48:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:29,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919496874] [2023-11-12 00:48:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:29,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:29,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919496874] [2023-11-12 00:48:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919496874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105315802] [2023-11-12 00:48:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:29,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:29,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:29,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:29,469 INFO L87 Difference]: Start difference. First operand 602 states and 788 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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) [2023-11-12 00:48:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:31,316 INFO L93 Difference]: Finished difference Result 1108 states and 1456 transitions. [2023-11-12 00:48:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:48:31,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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 [2023-11-12 00:48:31,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:31,322 INFO L225 Difference]: With dead ends: 1108 [2023-11-12 00:48:31,322 INFO L226 Difference]: Without dead ends: 1011 [2023-11-12 00:48:31,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:48:31,325 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 2658 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:31,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 2927 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:48:31,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-11-12 00:48:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 602. [2023-11-12 00:48:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.356896551724138) internal successors, (787), 601 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) [2023-11-12 00:48:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 787 transitions. [2023-11-12 00:48:31,342 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 787 transitions. Word has length 89 [2023-11-12 00:48:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:31,342 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 787 transitions. [2023-11-12 00:48:31,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 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) [2023-11-12 00:48:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 787 transitions. [2023-11-12 00:48:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:48:31,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:31,345 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] [2023-11-12 00:48:31,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:48:31,345 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:31,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash 231777635, now seen corresponding path program 1 times [2023-11-12 00:48:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:31,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412047624] [2023-11-12 00:48:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:31,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:31,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412047624] [2023-11-12 00:48:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412047624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:31,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:31,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:48:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737349579] [2023-11-12 00:48:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:31,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:48:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:31,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:48:31,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:48:31,774 INFO L87 Difference]: Start difference. First operand 602 states and 787 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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) [2023-11-12 00:48:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:32,751 INFO L93 Difference]: Finished difference Result 1109 states and 1399 transitions. [2023-11-12 00:48:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:48:32,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 [2023-11-12 00:48:32,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:32,756 INFO L225 Difference]: With dead ends: 1109 [2023-11-12 00:48:32,756 INFO L226 Difference]: Without dead ends: 790 [2023-11-12 00:48:32,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:48:32,758 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 2345 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:32,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2345 Valid, 1054 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 00:48:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-12 00:48:32,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 602. [2023-11-12 00:48:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.3551724137931034) internal successors, (786), 601 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) [2023-11-12 00:48:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 786 transitions. [2023-11-12 00:48:32,773 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 786 transitions. Word has length 89 [2023-11-12 00:48:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:32,773 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 786 transitions. [2023-11-12 00:48:32,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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) [2023-11-12 00:48:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 786 transitions. [2023-11-12 00:48:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:32,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:32,776 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] [2023-11-12 00:48:32,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 00:48:32,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:32,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1427714440, now seen corresponding path program 1 times [2023-11-12 00:48:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806070005] [2023-11-12 00:48:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:33,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:33,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806070005] [2023-11-12 00:48:33,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806070005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:33,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:33,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:33,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940346725] [2023-11-12 00:48:33,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:33,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:33,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:33,159 INFO L87 Difference]: Start difference. First operand 602 states and 786 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) [2023-11-12 00:48:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:34,563 INFO L93 Difference]: Finished difference Result 1051 states and 1360 transitions. [2023-11-12 00:48:34,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 00:48:34,564 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 [2023-11-12 00:48:34,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:34,569 INFO L225 Difference]: With dead ends: 1051 [2023-11-12 00:48:34,570 INFO L226 Difference]: Without dead ends: 992 [2023-11-12 00:48:34,571 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 [2023-11-12 00:48:34,571 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 2209 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:34,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 1931 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 00:48:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2023-11-12 00:48:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 602. [2023-11-12 00:48:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.353448275862069) internal successors, (785), 601 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) [2023-11-12 00:48:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 785 transitions. [2023-11-12 00:48:34,588 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 785 transitions. Word has length 91 [2023-11-12 00:48:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:34,588 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 785 transitions. [2023-11-12 00:48:34,588 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) [2023-11-12 00:48:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 785 transitions. [2023-11-12 00:48:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:34,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:34,591 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] [2023-11-12 00:48:34,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 00:48:34,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:34,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1221078273, now seen corresponding path program 1 times [2023-11-12 00:48:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:34,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451945534] [2023-11-12 00:48:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:34,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:34,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451945534] [2023-11-12 00:48:34,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451945534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:34,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:34,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:34,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739373605] [2023-11-12 00:48:34,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:34,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:34,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:34,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:34,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:34,971 INFO L87 Difference]: Start difference. First operand 602 states and 785 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) [2023-11-12 00:48:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:36,302 INFO L93 Difference]: Finished difference Result 965 states and 1231 transitions. [2023-11-12 00:48:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 00:48:36,303 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 [2023-11-12 00:48:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:36,308 INFO L225 Difference]: With dead ends: 965 [2023-11-12 00:48:36,308 INFO L226 Difference]: Without dead ends: 960 [2023-11-12 00:48:36,309 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 [2023-11-12 00:48:36,310 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 3269 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:36,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3269 Valid, 1848 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:48:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-11-12 00:48:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 602. [2023-11-12 00:48:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.3517241379310345) internal successors, (784), 601 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) [2023-11-12 00:48:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 784 transitions. [2023-11-12 00:48:36,328 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 784 transitions. Word has length 91 [2023-11-12 00:48:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:36,328 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 784 transitions. [2023-11-12 00:48:36,328 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) [2023-11-12 00:48:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 784 transitions. [2023-11-12 00:48:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:36,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:36,331 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, 1] [2023-11-12 00:48:36,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 00:48:36,331 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:36,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash 207011855, now seen corresponding path program 1 times [2023-11-12 00:48:36,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:36,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448797906] [2023-11-12 00:48:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:36,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:36,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:36,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448797906] [2023-11-12 00:48:36,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448797906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:36,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:36,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:36,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659716952] [2023-11-12 00:48:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:36,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:36,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:36,796 INFO L87 Difference]: Start difference. First operand 602 states and 784 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) [2023-11-12 00:48:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:38,638 INFO L93 Difference]: Finished difference Result 1122 states and 1462 transitions. [2023-11-12 00:48:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:48:38,639 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 [2023-11-12 00:48:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:38,644 INFO L225 Difference]: With dead ends: 1122 [2023-11-12 00:48:38,645 INFO L226 Difference]: Without dead ends: 1011 [2023-11-12 00:48:38,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:48:38,647 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 2624 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:38,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2624 Valid, 2945 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:48:38,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-11-12 00:48:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 602. [2023-11-12 00:48:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.35) internal successors, (783), 601 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) [2023-11-12 00:48:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 783 transitions. [2023-11-12 00:48:38,666 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 783 transitions. Word has length 91 [2023-11-12 00:48:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:38,667 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 783 transitions. [2023-11-12 00:48:38,667 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) [2023-11-12 00:48:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 783 transitions. [2023-11-12 00:48:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:38,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:38,669 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] [2023-11-12 00:48:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 00:48:38,670 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:38,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:38,670 INFO L85 PathProgramCache]: Analyzing trace with hash -982216986, now seen corresponding path program 1 times [2023-11-12 00:48:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:38,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417935611] [2023-11-12 00:48:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:38,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:39,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:39,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417935611] [2023-11-12 00:48:39,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417935611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:39,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:39,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 00:48:39,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622339164] [2023-11-12 00:48:39,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:39,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 00:48:39,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:39,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 00:48:39,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-12 00:48:39,186 INFO L87 Difference]: Start difference. First operand 602 states and 783 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) [2023-11-12 00:48:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:41,018 INFO L93 Difference]: Finished difference Result 1125 states and 1445 transitions. [2023-11-12 00:48:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 00:48:41,018 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 [2023-11-12 00:48:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:41,023 INFO L225 Difference]: With dead ends: 1125 [2023-11-12 00:48:41,024 INFO L226 Difference]: Without dead ends: 1061 [2023-11-12 00:48:41,024 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 [2023-11-12 00:48:41,025 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 3742 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:41,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 2598 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 00:48:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-11-12 00:48:41,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 615. [2023-11-12 00:48:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 593 states have (on average 1.3524451939291737) internal successors, (802), 614 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 802 transitions. [2023-11-12 00:48:41,046 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 802 transitions. Word has length 91 [2023-11-12 00:48:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:41,046 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 802 transitions. [2023-11-12 00:48:41,046 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) [2023-11-12 00:48:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 802 transitions. [2023-11-12 00:48:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:41,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:41,054 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] [2023-11-12 00:48:41,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 00:48:41,055 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:41,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1680995533, now seen corresponding path program 1 times [2023-11-12 00:48:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:41,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769478035] [2023-11-12 00:48:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:41,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:41,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:41,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769478035] [2023-11-12 00:48:41,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769478035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:41,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:41,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:41,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560641056] [2023-11-12 00:48:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:41,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:41,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:41,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:41,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:41,552 INFO L87 Difference]: Start difference. First operand 615 states and 802 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) [2023-11-12 00:48:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:43,156 INFO L93 Difference]: Finished difference Result 1215 states and 1577 transitions. [2023-11-12 00:48:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 00:48:43,157 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 [2023-11-12 00:48:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:43,161 INFO L225 Difference]: With dead ends: 1215 [2023-11-12 00:48:43,161 INFO L226 Difference]: Without dead ends: 1020 [2023-11-12 00:48:43,166 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 [2023-11-12 00:48:43,166 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 2056 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:43,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 2526 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-12 00:48:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-11-12 00:48:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 602. [2023-11-12 00:48:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 580 states have (on average 1.3482758620689654) internal successors, (782), 601 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 782 transitions. [2023-11-12 00:48:43,185 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 782 transitions. Word has length 91 [2023-11-12 00:48:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:43,186 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 782 transitions. [2023-11-12 00:48:43,186 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) [2023-11-12 00:48:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 782 transitions. [2023-11-12 00:48:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:48:43,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:43,188 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] [2023-11-12 00:48:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 00:48:43,189 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-12 00:48:43,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1988895487, now seen corresponding path program 1 times [2023-11-12 00:48:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:43,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701571264] [2023-11-12 00:48:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:43,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:43,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701571264] [2023-11-12 00:48:43,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701571264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:43,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:43,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:48:43,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772401411] [2023-11-12 00:48:43,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:43,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:48:43,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:43,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:48:43,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:43,553 INFO L87 Difference]: Start difference. First operand 602 states and 782 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)