./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ --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 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:28,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:28,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:57:28,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:28,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:28,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:28,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:28,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:28,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:28,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:28,276 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:28,277 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:28,278 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:28,279 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:28,279 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:28,280 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:28,281 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:28,282 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:28,282 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:28,283 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:28,284 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:28,285 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:28,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:28,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:28,287 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:57:28,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:28,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:57:28,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:28,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:28,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:28,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:28,299 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:57:28,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:28,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:28,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:28,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:28,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:28,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:28,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:28,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:28,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:28,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:28,304 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:28,304 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:28,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:28,304 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_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f [2023-11-19 04:57:28,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:28,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:28,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:28,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:28,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:28,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-11-19 04:57:32,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:32,946 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:32,947 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-11-19 04:57:32,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/data/35289f526/0f1efa5f8a6a4a2199806566a9c7fd64/FLAG2566abb05 [2023-11-19 04:57:33,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/data/35289f526/0f1efa5f8a6a4a2199806566a9c7fd64 [2023-11-19 04:57:33,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:33,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:33,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:33,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:33,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:33,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:33" (1/1) ... [2023-11-19 04:57:33,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7266836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:33, skipping insertion in model container [2023-11-19 04:57:33,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:33" (1/1) ... [2023-11-19 04:57:33,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:33,823 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2023-11-19 04:57:33,930 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2023-11-19 04:57:33,994 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2023-11-19 04:57:34,073 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2023-11-19 04:57:34,145 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2023-11-19 04:57:34,222 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2023-11-19 04:57:34,272 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2023-11-19 04:57:34,298 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2023-11-19 04:57:34,326 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2023-11-19 04:57:34,351 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2023-11-19 04:57:34,375 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2023-11-19 04:57:34,395 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2023-11-19 04:57:34,416 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2023-11-19 04:57:34,436 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2023-11-19 04:57:34,455 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2023-11-19 04:57:34,476 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2023-11-19 04:57:34,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:34,591 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:34,773 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2023-11-19 04:57:34,834 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2023-11-19 04:57:34,864 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2023-11-19 04:57:34,879 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2023-11-19 04:57:34,895 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2023-11-19 04:57:34,956 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2023-11-19 04:57:34,987 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2023-11-19 04:57:35,003 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2023-11-19 04:57:35,018 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2023-11-19 04:57:35,036 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2023-11-19 04:57:35,050 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2023-11-19 04:57:35,065 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2023-11-19 04:57:35,082 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2023-11-19 04:57:35,141 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2023-11-19 04:57:35,156 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2023-11-19 04:57:35,173 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_74b15dae-2194-475c-8394-9126e02dcffa/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2023-11-19 04:57:35,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:35,262 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:35,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35 WrapperNode [2023-11-19 04:57:35,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:35,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:35,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:35,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:35,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,536 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6246 [2023-11-19 04:57:35,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:35,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:35,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:35,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:35,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:35,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:35,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:35,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:35,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (1/1) ... [2023-11-19 04:57:35,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:35,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:35,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b15dae-2194-475c-8394-9126e02dcffa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:35,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:35,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:35,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:36,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:36,312 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:40,245 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:40,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:40,491 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:57:40,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:40 BoogieIcfgContainer [2023-11-19 04:57:40,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:40,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:40,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:40,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:40,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:33" (1/3) ... [2023-11-19 04:57:40,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa61f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:40, skipping insertion in model container [2023-11-19 04:57:40,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:35" (2/3) ... [2023-11-19 04:57:40,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa61f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:40, skipping insertion in model container [2023-11-19 04:57:40,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:40" (3/3) ... [2023-11-19 04:57:40,529 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-11-19 04:57:40,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:40,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 04:57:40,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:40,659 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;@5152e951, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:40,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 04:57:40,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 04:57:40,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:40,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:40,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:40,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash -959725519, now seen corresponding path program 1 times [2023-11-19 04:57:40,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:40,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118706251] [2023-11-19 04:57:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:41,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:41,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118706251] [2023-11-19 04:57:41,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118706251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:41,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:41,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:41,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322007213] [2023-11-19 04:57:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:41,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:41,877 INFO L87 Difference]: Start difference. First operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:43,090 INFO L93 Difference]: Finished difference Result 1365 states and 2339 transitions. [2023-11-19 04:57:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:43,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-19 04:57:43,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:43,113 INFO L225 Difference]: With dead ends: 1365 [2023-11-19 04:57:43,113 INFO L226 Difference]: Without dead ends: 788 [2023-11-19 04:57:43,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:57:43,124 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 3906 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3906 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:43,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3906 Valid, 818 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 04:57:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-11-19 04:57:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2023-11-19 04:57:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.2681347150259068) internal successors, (979), 787 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 979 transitions. [2023-11-19 04:57:43,221 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 979 transitions. Word has length 72 [2023-11-19 04:57:43,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:43,222 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 979 transitions. [2023-11-19 04:57:43,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 979 transitions. [2023-11-19 04:57:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 04:57:43,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:43,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:43,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:43,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:43,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash -968066446, now seen corresponding path program 1 times [2023-11-19 04:57:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:43,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346811450] [2023-11-19 04:57:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:43,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:43,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:43,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346811450] [2023-11-19 04:57:43,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346811450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:43,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:43,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:43,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681251685] [2023-11-19 04:57:43,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:43,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:43,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:43,617 INFO L87 Difference]: Start difference. First operand 788 states and 979 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:44,640 INFO L93 Difference]: Finished difference Result 1366 states and 1712 transitions. [2023-11-19 04:57:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:44,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-19 04:57:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:44,649 INFO L225 Difference]: With dead ends: 1366 [2023-11-19 04:57:44,649 INFO L226 Difference]: Without dead ends: 966 [2023-11-19 04:57:44,657 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 [2023-11-19 04:57:44,661 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 3145 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:44,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 657 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 04:57:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-11-19 04:57:44,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 872. [2023-11-19 04:57:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 856 states have (on average 1.3189252336448598) internal successors, (1129), 871 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1129 transitions. [2023-11-19 04:57:44,705 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1129 transitions. Word has length 72 [2023-11-19 04:57:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:44,705 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1129 transitions. [2023-11-19 04:57:44,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1129 transitions. [2023-11-19 04:57:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 04:57:44,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:44,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:44,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:57:44,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:44,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1526182328, now seen corresponding path program 1 times [2023-11-19 04:57:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:44,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994776398] [2023-11-19 04:57:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:44,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:45,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:45,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994776398] [2023-11-19 04:57:45,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994776398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:45,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:45,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:45,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999414838] [2023-11-19 04:57:45,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:45,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:45,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:45,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:45,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:45,031 INFO L87 Difference]: Start difference. First operand 872 states and 1129 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:45,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:45,460 INFO L93 Difference]: Finished difference Result 1042 states and 1327 transitions. [2023-11-19 04:57:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:45,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-19 04:57:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:45,468 INFO L225 Difference]: With dead ends: 1042 [2023-11-19 04:57:45,469 INFO L226 Difference]: Without dead ends: 618 [2023-11-19 04:57:45,471 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 [2023-11-19 04:57:45,475 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1637 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:45,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 336 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:57:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-11-19 04:57:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2023-11-19 04:57:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 602 states have (on average 1.318936877076412) internal successors, (794), 617 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 794 transitions. [2023-11-19 04:57:45,549 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 794 transitions. Word has length 72 [2023-11-19 04:57:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:45,554 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 794 transitions. [2023-11-19 04:57:45,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 794 transitions. [2023-11-19 04:57:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 04:57:45,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:45,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:45,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:57:45,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:45,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1953545306, now seen corresponding path program 1 times [2023-11-19 04:57:45,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:45,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537713543] [2023-11-19 04:57:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:45,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:45,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537713543] [2023-11-19 04:57:45,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537713543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:45,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:45,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:45,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229801110] [2023-11-19 04:57:45,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:45,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:45,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:45,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:45,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:45,837 INFO L87 Difference]: Start difference. First operand 618 states and 794 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:46,199 INFO L93 Difference]: Finished difference Result 885 states and 1138 transitions. [2023-11-19 04:57:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:46,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-11-19 04:57:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:46,205 INFO L225 Difference]: With dead ends: 885 [2023-11-19 04:57:46,205 INFO L226 Difference]: Without dead ends: 552 [2023-11-19 04:57:46,206 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 [2023-11-19 04:57:46,207 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1472 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:46,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 310 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:57:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-11-19 04:57:46,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2023-11-19 04:57:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 536 states have (on average 1.328358208955224) internal successors, (712), 551 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 712 transitions. [2023-11-19 04:57:46,228 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 712 transitions. Word has length 74 [2023-11-19 04:57:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:46,230 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 712 transitions. [2023-11-19 04:57:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 712 transitions. [2023-11-19 04:57:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 04:57:46,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:46,234 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] [2023-11-19 04:57:46,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:57:46,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:46,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1983390979, now seen corresponding path program 1 times [2023-11-19 04:57:46,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:46,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407133239] [2023-11-19 04:57:46,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:46,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:46,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407133239] [2023-11-19 04:57:46,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407133239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:46,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:46,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:46,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335502560] [2023-11-19 04:57:46,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:46,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:46,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:46,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:46,478 INFO L87 Difference]: Start difference. First operand 552 states and 712 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:46,904 INFO L93 Difference]: Finished difference Result 801 states and 1029 transitions. [2023-11-19 04:57:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:57:46,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-11-19 04:57:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:46,909 INFO L225 Difference]: With dead ends: 801 [2023-11-19 04:57:46,909 INFO L226 Difference]: Without dead ends: 544 [2023-11-19 04:57:46,910 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 [2023-11-19 04:57:46,911 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1395 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:46,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 285 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:57:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-19 04:57:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2023-11-19 04:57:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3276515151515151) internal successors, (701), 543 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 701 transitions. [2023-11-19 04:57:46,930 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 701 transitions. Word has length 76 [2023-11-19 04:57:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:46,930 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 701 transitions. [2023-11-19 04:57:46,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 701 transitions. [2023-11-19 04:57:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 04:57:46,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:46,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:46,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:57:46,944 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:46,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:46,945 INFO L85 PathProgramCache]: Analyzing trace with hash 802660192, now seen corresponding path program 1 times [2023-11-19 04:57:46,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:46,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731095013] [2023-11-19 04:57:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:46,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:47,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:47,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731095013] [2023-11-19 04:57:47,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731095013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:47,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:47,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:57:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685866581] [2023-11-19 04:57:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:47,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:57:47,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:47,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:57:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:57:47,572 INFO L87 Difference]: Start difference. First operand 544 states and 701 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:48,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:48,395 INFO L93 Difference]: Finished difference Result 1001 states and 1246 transitions. [2023-11-19 04:57:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:57:48,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-19 04:57:48,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:48,403 INFO L225 Difference]: With dead ends: 1001 [2023-11-19 04:57:48,403 INFO L226 Difference]: Without dead ends: 751 [2023-11-19 04:57:48,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 04:57:48,405 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 2275 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:48,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 678 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:57:48,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-11-19 04:57:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 544. [2023-11-19 04:57:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3257575757575757) internal successors, (700), 543 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 700 transitions. [2023-11-19 04:57:48,432 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 700 transitions. Word has length 78 [2023-11-19 04:57:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:48,434 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 700 transitions. [2023-11-19 04:57:48,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 700 transitions. [2023-11-19 04:57:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 04:57:48,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:48,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:57:48,443 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:48,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1668159008, now seen corresponding path program 1 times [2023-11-19 04:57:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:48,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104903772] [2023-11-19 04:57:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:48,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:49,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:49,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104903772] [2023-11-19 04:57:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104903772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:57:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97095923] [2023-11-19 04:57:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:49,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:57:49,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:57:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:57:49,126 INFO L87 Difference]: Start difference. First operand 544 states and 700 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:50,432 INFO L93 Difference]: Finished difference Result 1144 states and 1482 transitions. [2023-11-19 04:57:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 04:57:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-19 04:57:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:50,440 INFO L225 Difference]: With dead ends: 1144 [2023-11-19 04:57:50,440 INFO L226 Difference]: Without dead ends: 1029 [2023-11-19 04:57:50,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-19 04:57:50,443 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2187 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:50,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 1375 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 04:57:50,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-11-19 04:57:50,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 544. [2023-11-19 04:57:50,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3238636363636365) internal successors, (699), 543 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 699 transitions. [2023-11-19 04:57:50,467 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 699 transitions. Word has length 78 [2023-11-19 04:57:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:50,468 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 699 transitions. [2023-11-19 04:57:50,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 699 transitions. [2023-11-19 04:57:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 04:57:50,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:50,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:50,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:57:50,471 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:50,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1675317728, now seen corresponding path program 1 times [2023-11-19 04:57:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424494978] [2023-11-19 04:57:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:51,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424494978] [2023-11-19 04:57:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424494978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:51,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:51,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:57:51,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207626551] [2023-11-19 04:57:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:51,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:57:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:51,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:57:51,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:57:51,092 INFO L87 Difference]: Start difference. First operand 544 states and 699 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:52,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:52,196 INFO L93 Difference]: Finished difference Result 796 states and 1026 transitions. [2023-11-19 04:57:52,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:57:52,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-19 04:57:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:52,201 INFO L225 Difference]: With dead ends: 796 [2023-11-19 04:57:52,202 INFO L226 Difference]: Without dead ends: 638 [2023-11-19 04:57:52,203 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 [2023-11-19 04:57:52,204 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1149 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:52,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1647 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 04:57:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-19 04:57:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 544. [2023-11-19 04:57:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.321969696969697) internal successors, (698), 543 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 698 transitions. [2023-11-19 04:57:52,228 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 698 transitions. Word has length 78 [2023-11-19 04:57:52,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:52,229 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 698 transitions. [2023-11-19 04:57:52,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:52,229 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 698 transitions. [2023-11-19 04:57:52,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 04:57:52,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:52,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:52,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:57:52,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:52,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1605144151, now seen corresponding path program 1 times [2023-11-19 04:57:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858933659] [2023-11-19 04:57:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:52,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:52,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858933659] [2023-11-19 04:57:52,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858933659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:52,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:57:52,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889221251] [2023-11-19 04:57:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:52,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:57:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:57:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:57:52,740 INFO L87 Difference]: Start difference. First operand 544 states and 698 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:53,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:53,870 INFO L93 Difference]: Finished difference Result 1099 states and 1413 transitions. [2023-11-19 04:57:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:57:53,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-11-19 04:57:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:53,881 INFO L225 Difference]: With dead ends: 1099 [2023-11-19 04:57:53,881 INFO L226 Difference]: Without dead ends: 1003 [2023-11-19 04:57:53,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:57:53,885 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1668 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:53,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1454 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 04:57:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-19 04:57:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2023-11-19 04:57:53,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3200757575757576) internal successors, (697), 543 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 697 transitions. [2023-11-19 04:57:53,909 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 697 transitions. Word has length 79 [2023-11-19 04:57:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:53,909 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 697 transitions. [2023-11-19 04:57:53,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:53,910 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 697 transitions. [2023-11-19 04:57:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:57:53,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:53,912 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] [2023-11-19 04:57:53,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:57:53,914 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:53,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 968830309, now seen corresponding path program 1 times [2023-11-19 04:57:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663684427] [2023-11-19 04:57:53,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:53,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:54,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:54,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663684427] [2023-11-19 04:57:54,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663684427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:54,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:54,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 04:57:54,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736900031] [2023-11-19 04:57:54,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:54,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 04:57:54,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:54,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 04:57:54,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:57:54,904 INFO L87 Difference]: Start difference. First operand 544 states and 697 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:56,635 INFO L93 Difference]: Finished difference Result 920 states and 1186 transitions. [2023-11-19 04:57:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 04:57:56,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:57:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:56,640 INFO L225 Difference]: With dead ends: 920 [2023-11-19 04:57:56,640 INFO L226 Difference]: Without dead ends: 690 [2023-11-19 04:57:56,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2023-11-19 04:57:56,642 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1768 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:56,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 2001 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 04:57:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-19 04:57:56,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 544. [2023-11-19 04:57:56,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.316287878787879) internal successors, (695), 543 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 695 transitions. [2023-11-19 04:57:56,665 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 695 transitions. Word has length 80 [2023-11-19 04:57:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:56,665 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 695 transitions. [2023-11-19 04:57:56,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 695 transitions. [2023-11-19 04:57:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:57:56,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:56,668 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] [2023-11-19 04:57:56,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:57:56,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:56,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:56,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1772365797, now seen corresponding path program 1 times [2023-11-19 04:57:56,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:56,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536922053] [2023-11-19 04:57:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:56,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:57,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:57,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536922053] [2023-11-19 04:57:57,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536922053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:57,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:57,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:57:57,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919591671] [2023-11-19 04:57:57,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:57,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:57:57,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:57:57,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:57:57,130 INFO L87 Difference]: Start difference. First operand 544 states and 695 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:58,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:58,525 INFO L93 Difference]: Finished difference Result 1164 states and 1501 transitions. [2023-11-19 04:57:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 04:57:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:57:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:58,536 INFO L225 Difference]: With dead ends: 1164 [2023-11-19 04:57:58,537 INFO L226 Difference]: Without dead ends: 1029 [2023-11-19 04:57:58,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-19 04:57:58,539 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1207 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:58,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 1933 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:57:58,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-11-19 04:57:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 544. [2023-11-19 04:57:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3125) internal successors, (693), 543 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 693 transitions. [2023-11-19 04:57:58,569 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 693 transitions. Word has length 80 [2023-11-19 04:57:58,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:58,569 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 693 transitions. [2023-11-19 04:57:58,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:57:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 693 transitions. [2023-11-19 04:57:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:57:58,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:58,574 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] [2023-11-19 04:57:58,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:57:58,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:57:58,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1109843867, now seen corresponding path program 1 times [2023-11-19 04:57:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:58,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132264624] [2023-11-19 04:57:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:59,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:59,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132264624] [2023-11-19 04:57:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132264624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:59,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:57:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636167721] [2023-11-19 04:57:59,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:59,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:57:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:57:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:57:59,098 INFO L87 Difference]: Start difference. First operand 544 states and 693 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:00,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:00,319 INFO L93 Difference]: Finished difference Result 1110 states and 1421 transitions. [2023-11-19 04:58:00,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:58:00,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:58:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:00,326 INFO L225 Difference]: With dead ends: 1110 [2023-11-19 04:58:00,326 INFO L226 Difference]: Without dead ends: 1003 [2023-11-19 04:58:00,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:58:00,329 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1172 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:00,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 1790 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 04:58:00,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-19 04:58:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2023-11-19 04:58:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.308712121212121) internal successors, (691), 543 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 691 transitions. [2023-11-19 04:58:00,361 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 691 transitions. Word has length 80 [2023-11-19 04:58:00,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:00,362 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 691 transitions. [2023-11-19 04:58:00,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 691 transitions. [2023-11-19 04:58:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:58:00,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:00,365 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] [2023-11-19 04:58:00,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 04:58:00,365 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:00,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:00,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1167764005, now seen corresponding path program 1 times [2023-11-19 04:58:00,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:00,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333411629] [2023-11-19 04:58:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:00,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:00,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333411629] [2023-11-19 04:58:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333411629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:58:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567391044] [2023-11-19 04:58:00,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:00,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:58:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:58:00,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:00,895 INFO L87 Difference]: Start difference. First operand 544 states and 691 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:02,258 INFO L93 Difference]: Finished difference Result 1103 states and 1410 transitions. [2023-11-19 04:58:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:58:02,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:58:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:02,266 INFO L225 Difference]: With dead ends: 1103 [2023-11-19 04:58:02,266 INFO L226 Difference]: Without dead ends: 1003 [2023-11-19 04:58:02,267 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 [2023-11-19 04:58:02,269 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1645 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:02,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 1963 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:58:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-19 04:58:02,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2023-11-19 04:58:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3068181818181819) internal successors, (690), 543 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 690 transitions. [2023-11-19 04:58:02,293 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 690 transitions. Word has length 80 [2023-11-19 04:58:02,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:02,293 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 690 transitions. [2023-11-19 04:58:02,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 690 transitions. [2023-11-19 04:58:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:58:02,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:02,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:02,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 04:58:02,297 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:02,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:02,298 INFO L85 PathProgramCache]: Analyzing trace with hash 845800069, now seen corresponding path program 1 times [2023-11-19 04:58:02,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:02,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154243500] [2023-11-19 04:58:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:03,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:03,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154243500] [2023-11-19 04:58:03,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154243500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:03,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:03,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:58:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5274770] [2023-11-19 04:58:03,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:03,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 04:58:03,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:03,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 04:58:03,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:58:03,148 INFO L87 Difference]: Start difference. First operand 544 states and 690 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:05,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:05,727 INFO L93 Difference]: Finished difference Result 1619 states and 2090 transitions. [2023-11-19 04:58:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 04:58:05,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:58:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:05,737 INFO L225 Difference]: With dead ends: 1619 [2023-11-19 04:58:05,738 INFO L226 Difference]: Without dead ends: 1495 [2023-11-19 04:58:05,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-11-19 04:58:05,740 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 3527 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:05,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 2201 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 04:58:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2023-11-19 04:58:05,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 549. [2023-11-19 04:58:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 533 states have (on average 1.3039399624765478) internal successors, (695), 548 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 695 transitions. [2023-11-19 04:58:05,770 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 695 transitions. Word has length 80 [2023-11-19 04:58:05,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:05,770 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 695 transitions. [2023-11-19 04:58:05,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 695 transitions. [2023-11-19 04:58:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:58:05,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:05,773 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] [2023-11-19 04:58:05,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 04:58:05,774 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:05,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 319051941, now seen corresponding path program 1 times [2023-11-19 04:58:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:05,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917562829] [2023-11-19 04:58:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:06,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917562829] [2023-11-19 04:58:06,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917562829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:06,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:06,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:58:06,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651234129] [2023-11-19 04:58:06,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:06,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:58:06,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:06,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:58:06,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:06,205 INFO L87 Difference]: Start difference. First operand 549 states and 695 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:07,454 INFO L93 Difference]: Finished difference Result 1108 states and 1413 transitions. [2023-11-19 04:58:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:58:07,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:58:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:07,462 INFO L225 Difference]: With dead ends: 1108 [2023-11-19 04:58:07,463 INFO L226 Difference]: Without dead ends: 1008 [2023-11-19 04:58:07,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:58:07,464 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1127 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:07,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1762 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:58:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2023-11-19 04:58:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 549. [2023-11-19 04:58:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 533 states have (on average 1.302063789868668) internal successors, (694), 548 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 694 transitions. [2023-11-19 04:58:07,495 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 694 transitions. Word has length 80 [2023-11-19 04:58:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 694 transitions. [2023-11-19 04:58:07,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 694 transitions. [2023-11-19 04:58:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 04:58:07,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:07,499 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] [2023-11-19 04:58:07,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 04:58:07,499 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:07,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:07,500 INFO L85 PathProgramCache]: Analyzing trace with hash 436282523, now seen corresponding path program 1 times [2023-11-19 04:58:07,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:07,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106333010] [2023-11-19 04:58:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:07,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:07,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:07,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106333010] [2023-11-19 04:58:07,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106333010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:58:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651740215] [2023-11-19 04:58:07,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:58:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:58:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:07,966 INFO L87 Difference]: Start difference. First operand 549 states and 694 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:09,287 INFO L93 Difference]: Finished difference Result 1070 states and 1354 transitions. [2023-11-19 04:58:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:58:09,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-19 04:58:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:09,294 INFO L225 Difference]: With dead ends: 1070 [2023-11-19 04:58:09,295 INFO L226 Difference]: Without dead ends: 983 [2023-11-19 04:58:09,295 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 [2023-11-19 04:58:09,296 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1675 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:09,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 1802 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:58:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2023-11-19 04:58:09,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 548. [2023-11-19 04:58:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 532 states have (on average 1.300751879699248) internal successors, (692), 547 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 692 transitions. [2023-11-19 04:58:09,321 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 692 transitions. Word has length 80 [2023-11-19 04:58:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:09,322 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 692 transitions. [2023-11-19 04:58:09,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 692 transitions. [2023-11-19 04:58:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 04:58:09,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:09,325 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] [2023-11-19 04:58:09,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 04:58:09,325 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:09,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1402771346, now seen corresponding path program 1 times [2023-11-19 04:58:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485442147] [2023-11-19 04:58:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:09,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:09,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485442147] [2023-11-19 04:58:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485442147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:09,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:09,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:58:09,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576859727] [2023-11-19 04:58:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:09,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:58:09,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:09,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:58:09,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:09,896 INFO L87 Difference]: Start difference. First operand 548 states and 692 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:11,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:11,172 INFO L93 Difference]: Finished difference Result 1075 states and 1358 transitions. [2023-11-19 04:58:11,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:58:11,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-11-19 04:58:11,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:11,180 INFO L225 Difference]: With dead ends: 1075 [2023-11-19 04:58:11,180 INFO L226 Difference]: Without dead ends: 983 [2023-11-19 04:58:11,181 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 [2023-11-19 04:58:11,182 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1696 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:11,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 1781 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:58:11,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2023-11-19 04:58:11,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 548. [2023-11-19 04:58:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 532 states have (on average 1.2969924812030076) internal successors, (690), 547 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 690 transitions. [2023-11-19 04:58:11,206 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 690 transitions. Word has length 81 [2023-11-19 04:58:11,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:11,206 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 690 transitions. [2023-11-19 04:58:11,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:58:11,207 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 690 transitions. [2023-11-19 04:58:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 04:58:11,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:11,210 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] [2023-11-19 04:58:11,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 04:58:11,210 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-11-19 04:58:11,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash -737160558, now seen corresponding path program 1 times [2023-11-19 04:58:11,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706378078] [2023-11-19 04:58:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:11,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:11,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706378078] [2023-11-19 04:58:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706378078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:11,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:58:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657394694] [2023-11-19 04:58:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:11,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:58:11,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:58:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:11,653 INFO L87 Difference]: Start difference. First operand 548 states and 690 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)