./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1538db88747c173720a51ea136bd420db033fa3c052c219d34d6c24c09240f56 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:46:45,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:46:45,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:46:45,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:46:45,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:46:45,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:46:45,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:46:45,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:46:45,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:46:45,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:46:45,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:46:45,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:46:45,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:46:45,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:46:45,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:46:45,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:46:45,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:46:45,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:46:45,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:46:45,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:46:45,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:46:45,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:46:45,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:46:45,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:46:45,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:46:45,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:46:45,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:46:45,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:46:45,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:46:45,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:46:45,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:46:45,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:46:45,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:46:45,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:46:45,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:46:45,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:46:45,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:46:45,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:46:45,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:46:45,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:46:45,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:46:45,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:46:45,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:46:45,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:46:45,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:46:45,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:46:45,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:46:45,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:46:45,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:46:45,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:46:45,787 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:46:45,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:46:45,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:46:45,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:46:45,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:46:45,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:46:45,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:46:45,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:46:45,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:46:45,789 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:46:45,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:46:45,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:46:45,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:46:45,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:46:45,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:46:45,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:46:45,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:46:45,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:46:45,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:46:45,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:46:45,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:46:45,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:46:45,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:46:45,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:46:45,792 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:46:45,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:46:45,792 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1538db88747c173720a51ea136bd420db033fa3c052c219d34d6c24c09240f56 [2022-11-25 17:46:46,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:46:46,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:46:46,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:46:46,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:46:46,119 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:46:46,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-25 17:46:49,244 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:46:49,662 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:46:49,667 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-25 17:46:49,689 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/data/7e7d9b64a/f03a203e5fb04682a79b9cc26496c934/FLAG72ee52c3e [2022-11-25 17:46:49,705 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/data/7e7d9b64a/f03a203e5fb04682a79b9cc26496c934 [2022-11-25 17:46:49,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:46:49,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:46:49,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:46:49,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:46:49,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:46:49,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:49" (1/1) ... [2022-11-25 17:46:49,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508804f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:49, skipping insertion in model container [2022-11-25 17:46:49,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:49" (1/1) ... [2022-11-25 17:46:49,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:46:49,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:46:50,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31348,31361] [2022-11-25 17:46:50,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32238,32251] [2022-11-25 17:46:50,648 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[33897,33910] [2022-11-25 17:46:50,669 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34787,34800] [2022-11-25 17:46:50,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37218,37231] [2022-11-25 17:46:50,737 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38111,38124] [2022-11-25 17:46:50,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[39773,39786] [2022-11-25 17:46:50,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41134,41147] [2022-11-25 17:46:51,014 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[54998,55011] [2022-11-25 17:46:51,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55891,55904] [2022-11-25 17:46:51,062 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57553,57566] [2022-11-25 17:46:51,126 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[61710,61723] [2022-11-25 17:46:51,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:46:51,292 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:46:51,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31348,31361] [2022-11-25 17:46:51,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32238,32251] [2022-11-25 17:46:51,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[33897,33910] [2022-11-25 17:46:51,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34787,34800] [2022-11-25 17:46:51,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37218,37231] [2022-11-25 17:46:51,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38111,38124] [2022-11-25 17:46:51,687 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[39773,39786] [2022-11-25 17:46:51,704 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41134,41147] [2022-11-25 17:46:51,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[54998,55011] [2022-11-25 17:46:51,849 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55891,55904] [2022-11-25 17:46:51,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57553,57566] [2022-11-25 17:46:51,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[61710,61723] [2022-11-25 17:46:52,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:46:52,047 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:46:52,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52 WrapperNode [2022-11-25 17:46:52,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:46:52,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:46:52,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:46:52,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:46:52,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,178 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3772 [2022-11-25 17:46:52,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:46:52,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:46:52,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:46:52,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:46:52,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,255 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:46:52,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:46:52,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:46:52,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:46:52,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (1/1) ... [2022-11-25 17:46:52,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:46:52,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:46:52,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:46:52,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9a61a-fd12-42fa-a8b9-a233fe461bf5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:46:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:46:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:46:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:46:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:46:52,607 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:46:52,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:46:55,191 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:46:55,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:46:55,205 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:46:55,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:55 BoogieIcfgContainer [2022-11-25 17:46:55,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:46:55,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:46:55,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:46:55,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:46:55,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:46:49" (1/3) ... [2022-11-25 17:46:55,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbe30f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:55, skipping insertion in model container [2022-11-25 17:46:55,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:52" (2/3) ... [2022-11-25 17:46:55,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbe30f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:55, skipping insertion in model container [2022-11-25 17:46:55,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:55" (3/3) ... [2022-11-25 17:46:55,217 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-25 17:46:55,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:46:55,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 17:46:55,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:46:55,338 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f9ce695, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:46:55,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-25 17:46:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 893 states, 880 states have (on average 1.8284090909090909) internal successors, (1609), 892 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:55,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 17:46:55,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:55,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:55,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:46:55,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1492803539, now seen corresponding path program 1 times [2022-11-25 17:46:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:55,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554880894] [2022-11-25 17:46:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:56,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554880894] [2022-11-25 17:46:56,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554880894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:56,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:56,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:56,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640538937] [2022-11-25 17:46:56,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:56,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:56,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:56,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:56,396 INFO L87 Difference]: Start difference. First operand has 893 states, 880 states have (on average 1.8284090909090909) internal successors, (1609), 892 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:56,763 INFO L93 Difference]: Finished difference Result 1547 states and 2768 transitions. [2022-11-25 17:46:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:56,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-11-25 17:46:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:56,821 INFO L225 Difference]: With dead ends: 1547 [2022-11-25 17:46:56,821 INFO L226 Difference]: Without dead ends: 1284 [2022-11-25 17:46:56,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:56,832 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 850 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:56,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2918 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:46:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-11-25 17:46:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1282. [2022-11-25 17:46:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1270 states have (on average 1.5511811023622046) internal successors, (1970), 1281 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1970 transitions. [2022-11-25 17:46:57,001 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1970 transitions. Word has length 286 [2022-11-25 17:46:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:57,003 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 1970 transitions. [2022-11-25 17:46:57,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1970 transitions. [2022-11-25 17:46:57,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 17:46:57,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:57,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:57,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:46:57,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:46:57,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 292482130, now seen corresponding path program 1 times [2022-11-25 17:46:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:57,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53279820] [2022-11-25 17:46:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:57,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:57,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:57,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:57,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53279820] [2022-11-25 17:46:57,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53279820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:57,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:57,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:57,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722458176] [2022-11-25 17:46:57,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:57,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:57,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:57,386 INFO L87 Difference]: Start difference. First operand 1282 states and 1970 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:57,703 INFO L93 Difference]: Finished difference Result 2443 states and 3790 transitions. [2022-11-25 17:46:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-11-25 17:46:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:57,720 INFO L225 Difference]: With dead ends: 2443 [2022-11-25 17:46:57,720 INFO L226 Difference]: Without dead ends: 2090 [2022-11-25 17:46:57,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:57,733 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 711 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:57,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2508 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:46:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-11-25 17:46:57,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2088. [2022-11-25 17:46:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2076 states have (on average 1.5491329479768785) internal successors, (3216), 2087 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3216 transitions. [2022-11-25 17:46:57,896 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3216 transitions. Word has length 286 [2022-11-25 17:46:57,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:57,898 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 3216 transitions. [2022-11-25 17:46:57,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3216 transitions. [2022-11-25 17:46:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 17:46:57,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:57,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:57,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:46:57,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:46:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1001229934, now seen corresponding path program 1 times [2022-11-25 17:46:57,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:57,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727764711] [2022-11-25 17:46:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:58,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727764711] [2022-11-25 17:46:58,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727764711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:58,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:58,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:58,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052740226] [2022-11-25 17:46:58,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:58,308 INFO L87 Difference]: Start difference. First operand 2088 states and 3216 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:58,731 INFO L93 Difference]: Finished difference Result 4311 states and 6719 transitions. [2022-11-25 17:46:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:58,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-11-25 17:46:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:58,748 INFO L225 Difference]: With dead ends: 4311 [2022-11-25 17:46:58,748 INFO L226 Difference]: Without dead ends: 3742 [2022-11-25 17:46:58,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:58,752 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 753 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:58,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2499 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:46:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-11-25 17:46:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3740. [2022-11-25 17:46:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 3728 states have (on average 1.5488197424892705) internal successors, (5774), 3739 states have internal predecessors, (5774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:58,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5774 transitions. [2022-11-25 17:46:58,911 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5774 transitions. Word has length 286 [2022-11-25 17:46:58,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:58,912 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 5774 transitions. [2022-11-25 17:46:58,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5774 transitions. [2022-11-25 17:46:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 17:46:58,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:58,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:58,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:46:58,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:46:58,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1001660910, now seen corresponding path program 1 times [2022-11-25 17:46:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:58,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415615076] [2022-11-25 17:46:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:58,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:59,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415615076] [2022-11-25 17:46:59,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415615076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:59,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:59,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:46:59,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863406471] [2022-11-25 17:46:59,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:59,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:46:59,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:59,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:46:59,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:46:59,830 INFO L87 Difference]: Start difference. First operand 3740 states and 5774 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:00,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:00,427 INFO L93 Difference]: Finished difference Result 11074 states and 17085 transitions. [2022-11-25 17:47:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:47:00,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-11-25 17:47:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:00,453 INFO L225 Difference]: With dead ends: 11074 [2022-11-25 17:47:00,453 INFO L226 Difference]: Without dead ends: 7345 [2022-11-25 17:47:00,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:00,461 INFO L413 NwaCegarLoop]: 2346 mSDtfsCounter, 2891 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:00,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2891 Valid, 3639 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:47:00,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2022-11-25 17:47:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7177. [2022-11-25 17:47:01,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7165 states have (on average 1.5406838799720866) internal successors, (11039), 7176 states have internal predecessors, (11039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 11039 transitions. [2022-11-25 17:47:01,123 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 11039 transitions. Word has length 286 [2022-11-25 17:47:01,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:01,124 INFO L495 AbstractCegarLoop]: Abstraction has 7177 states and 11039 transitions. [2022-11-25 17:47:01,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:01,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 11039 transitions. [2022-11-25 17:47:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-25 17:47:01,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:01,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:01,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:47:01,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1884757154, now seen corresponding path program 1 times [2022-11-25 17:47:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:01,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126309569] [2022-11-25 17:47:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:01,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:01,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126309569] [2022-11-25 17:47:01,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126309569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:01,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:01,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:47:01,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062747996] [2022-11-25 17:47:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:01,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:47:01,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:47:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:01,325 INFO L87 Difference]: Start difference. First operand 7177 states and 11039 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:02,526 INFO L93 Difference]: Finished difference Result 21144 states and 32473 transitions. [2022-11-25 17:47:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:47:02,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 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 288 [2022-11-25 17:47:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:02,593 INFO L225 Difference]: With dead ends: 21144 [2022-11-25 17:47:02,594 INFO L226 Difference]: Without dead ends: 14092 [2022-11-25 17:47:02,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:02,604 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 1236 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:02,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 3901 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:47:02,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14092 states. [2022-11-25 17:47:03,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14092 to 13924. [2022-11-25 17:47:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13924 states, 13912 states have (on average 1.5322024151811386) internal successors, (21316), 13923 states have internal predecessors, (21316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13924 states to 13924 states and 21316 transitions. [2022-11-25 17:47:04,020 INFO L78 Accepts]: Start accepts. Automaton has 13924 states and 21316 transitions. Word has length 288 [2022-11-25 17:47:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:04,020 INFO L495 AbstractCegarLoop]: Abstraction has 13924 states and 21316 transitions. [2022-11-25 17:47:04,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13924 states and 21316 transitions. [2022-11-25 17:47:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-25 17:47:04,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:04,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:04,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:47:04,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1902288931, now seen corresponding path program 1 times [2022-11-25 17:47:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:04,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825360240] [2022-11-25 17:47:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825360240] [2022-11-25 17:47:04,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825360240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:04,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:04,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:47:04,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946008528] [2022-11-25 17:47:04,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:47:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:47:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:04,214 INFO L87 Difference]: Start difference. First operand 13924 states and 21316 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:06,548 INFO L93 Difference]: Finished difference Result 41705 states and 63832 transitions. [2022-11-25 17:47:06,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:47:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 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 288 [2022-11-25 17:47:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:06,625 INFO L225 Difference]: With dead ends: 41705 [2022-11-25 17:47:06,625 INFO L226 Difference]: Without dead ends: 27819 [2022-11-25 17:47:06,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:06,652 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 1349 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:06,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 4054 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:47:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27819 states. [2022-11-25 17:47:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27819 to 13943. [2022-11-25 17:47:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13943 states, 13931 states have (on average 1.532122604263872) internal successors, (21344), 13942 states have internal predecessors, (21344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13943 states to 13943 states and 21344 transitions. [2022-11-25 17:47:08,458 INFO L78 Accepts]: Start accepts. Automaton has 13943 states and 21344 transitions. Word has length 288 [2022-11-25 17:47:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:08,459 INFO L495 AbstractCegarLoop]: Abstraction has 13943 states and 21344 transitions. [2022-11-25 17:47:08,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 13943 states and 21344 transitions. [2022-11-25 17:47:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-25 17:47:08,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:08,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:08,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:47:08,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:08,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1247383390, now seen corresponding path program 1 times [2022-11-25 17:47:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:08,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063917148] [2022-11-25 17:47:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:08,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063917148] [2022-11-25 17:47:08,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063917148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:08,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:08,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:47:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193788578] [2022-11-25 17:47:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:08,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:47:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:47:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:08,624 INFO L87 Difference]: Start difference. First operand 13943 states and 21344 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:11,042 INFO L93 Difference]: Finished difference Result 41724 states and 63853 transitions. [2022-11-25 17:47:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:47:11,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 289 [2022-11-25 17:47:11,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:11,121 INFO L225 Difference]: With dead ends: 41724 [2022-11-25 17:47:11,121 INFO L226 Difference]: Without dead ends: 27837 [2022-11-25 17:47:11,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:11,142 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 1344 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:11,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 4054 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:47:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27837 states. [2022-11-25 17:47:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27837 to 13961. [2022-11-25 17:47:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13961 states, 13949 states have (on average 1.5316510144096351) internal successors, (21365), 13960 states have internal predecessors, (21365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13961 states to 13961 states and 21365 transitions. [2022-11-25 17:47:12,768 INFO L78 Accepts]: Start accepts. Automaton has 13961 states and 21365 transitions. Word has length 289 [2022-11-25 17:47:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:12,769 INFO L495 AbstractCegarLoop]: Abstraction has 13961 states and 21365 transitions. [2022-11-25 17:47:12,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 13961 states and 21365 transitions. [2022-11-25 17:47:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-25 17:47:12,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:12,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:12,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:47:12,792 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:12,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:12,793 INFO L85 PathProgramCache]: Analyzing trace with hash 699210233, now seen corresponding path program 1 times [2022-11-25 17:47:12,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:12,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999071054] [2022-11-25 17:47:12,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:12,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:13,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:13,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999071054] [2022-11-25 17:47:13,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999071054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:13,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:13,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:47:13,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564584615] [2022-11-25 17:47:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:13,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:47:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:47:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:13,008 INFO L87 Difference]: Start difference. First operand 13961 states and 21365 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:15,722 INFO L93 Difference]: Finished difference Result 41024 states and 62680 transitions. [2022-11-25 17:47:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:47:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 290 [2022-11-25 17:47:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:15,783 INFO L225 Difference]: With dead ends: 41024 [2022-11-25 17:47:15,783 INFO L226 Difference]: Without dead ends: 27304 [2022-11-25 17:47:15,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:15,803 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 1229 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:15,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3963 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:47:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27304 states. [2022-11-25 17:47:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27304 to 27136. [2022-11-25 17:47:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27136 states, 27124 states have (on average 1.521936292582215) internal successors, (41281), 27135 states have internal predecessors, (41281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27136 states to 27136 states and 41281 transitions. [2022-11-25 17:47:18,191 INFO L78 Accepts]: Start accepts. Automaton has 27136 states and 41281 transitions. Word has length 290 [2022-11-25 17:47:18,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:18,191 INFO L495 AbstractCegarLoop]: Abstraction has 27136 states and 41281 transitions. [2022-11-25 17:47:18,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 27136 states and 41281 transitions. [2022-11-25 17:47:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-25 17:47:18,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:18,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:18,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:47:18,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:18,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1012756458, now seen corresponding path program 1 times [2022-11-25 17:47:18,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:18,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135867586] [2022-11-25 17:47:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:18,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:19,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:19,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135867586] [2022-11-25 17:47:19,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135867586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:19,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:19,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:47:19,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027200564] [2022-11-25 17:47:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:19,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:47:19,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:19,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:47:19,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:19,076 INFO L87 Difference]: Start difference. First operand 27136 states and 41281 transitions. Second operand has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:24,601 INFO L93 Difference]: Finished difference Result 80010 states and 121556 transitions. [2022-11-25 17:47:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:47:24,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 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 290 [2022-11-25 17:47:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:24,684 INFO L225 Difference]: With dead ends: 80010 [2022-11-25 17:47:24,684 INFO L226 Difference]: Without dead ends: 52929 [2022-11-25 17:47:24,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:24,722 INFO L413 NwaCegarLoop]: 2331 mSDtfsCounter, 4196 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:24,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4196 Valid, 3616 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:47:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52929 states. [2022-11-25 17:47:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52929 to 52773. [2022-11-25 17:47:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52773 states, 52761 states have (on average 1.509941054945888) internal successors, (79666), 52772 states have internal predecessors, (79666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52773 states to 52773 states and 79666 transitions. [2022-11-25 17:47:29,412 INFO L78 Accepts]: Start accepts. Automaton has 52773 states and 79666 transitions. Word has length 290 [2022-11-25 17:47:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:29,413 INFO L495 AbstractCegarLoop]: Abstraction has 52773 states and 79666 transitions. [2022-11-25 17:47:29,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 52773 states and 79666 transitions. [2022-11-25 17:47:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-25 17:47:29,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:29,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:29,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:47:29,468 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 17:47:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:29,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1826024531, now seen corresponding path program 1 times [2022-11-25 17:47:29,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:29,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189788000] [2022-11-25 17:47:29,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:29,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:30,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:30,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189788000] [2022-11-25 17:47:30,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189788000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:30,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:30,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:47:30,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91697331] [2022-11-25 17:47:30,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:30,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:47:30,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:47:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:30,386 INFO L87 Difference]: Start difference. First operand 52773 states and 79666 transitions. Second operand has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)