./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN --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 8ff37a6bc6dd9a1cef87b79c0817272bb118995e5e060e5cd0eb428df45ac24f --- 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-6b4ec56 [2022-11-20 10:58:32,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:32,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:32,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:32,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:32,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:32,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:32,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:32,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:32,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:32,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:32,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:32,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:32,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:32,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:32,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:32,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:32,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:32,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:32,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:32,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:32,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:32,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:32,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:32,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:32,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:32,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:32,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:32,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:32,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:32,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:32,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:32,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:32,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:32,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:32,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:32,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:32,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:32,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:32,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:32,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:32,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:58:33,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:33,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:33,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:33,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:33,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:58:33,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:58:33,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:33,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:33,036 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:33,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:33,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:58:33,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:33,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:58:33,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:33,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:33,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:58:33,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:33,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:33,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:58:33,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:33,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:33,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:58:33,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:58:33,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:33,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:58:33,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:58:33,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:58:33,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:58:33,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ff37a6bc6dd9a1cef87b79c0817272bb118995e5e060e5cd0eb428df45ac24f [2022-11-20 10:58:33,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:33,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:33,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:33,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:33,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:33,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-20 10:58:36,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:36,829 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:36,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-20 10:58:36,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/data/7e9707b8c/f73a85ce1f3b4859aa87636bd6af2678/FLAG40dda1e7a [2022-11-20 10:58:36,876 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/data/7e9707b8c/f73a85ce1f3b4859aa87636bd6af2678 [2022-11-20 10:58:36,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:36,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:36,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:36,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:36,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:36,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:36" (1/1) ... [2022-11-20 10:58:36,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325cfa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:36, skipping insertion in model container [2022-11-20 10:58:36,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:36" (1/1) ... [2022-11-20 10:58:36,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:37,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:37,836 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34668,34681] [2022-11-20 10:58:37,863 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35558,35571] [2022-11-20 10:58:37,898 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37388,37401] [2022-11-20 10:58:37,921 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38278,38291] [2022-11-20 10:58:37,976 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41051,41064] [2022-11-20 10:58:37,997 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41944,41957] [2022-11-20 10:58:38,041 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43777,43790] [2022-11-20 10:58:38,069 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45054,45067] [2022-11-20 10:58:38,282 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60707,60720] [2022-11-20 10:58:38,304 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61600,61613] [2022-11-20 10:58:38,339 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63433,63446] [2022-11-20 10:58:38,418 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67890,67903] [2022-11-20 10:58:38,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:38,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:38,908 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34668,34681] [2022-11-20 10:58:38,928 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35558,35571] [2022-11-20 10:58:38,963 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37388,37401] [2022-11-20 10:58:38,982 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38278,38291] [2022-11-20 10:58:39,025 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41051,41064] [2022-11-20 10:58:39,044 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41944,41957] [2022-11-20 10:58:39,075 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43777,43790] [2022-11-20 10:58:39,100 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45054,45067] [2022-11-20 10:58:39,277 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60707,60720] [2022-11-20 10:58:39,297 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61600,61613] [2022-11-20 10:58:39,350 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63433,63446] [2022-11-20 10:58:39,411 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_0ba4dc61-8ac0-45a7-9352-68306bfae75b/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67890,67903] [2022-11-20 10:58:39,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:39,545 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:39,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39 WrapperNode [2022-11-20 10:58:39,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:39,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:39,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:39,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:39,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,716 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4116 [2022-11-20 10:58:39,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:39,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:58:39,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:58:39,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:58:39,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:58:39,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:58:39,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:58:39,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:58:39,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (1/1) ... [2022-11-20 10:58:39,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:39,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:39,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:39,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4dc61-8ac0-45a7-9352-68306bfae75b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:58:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:58:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:58:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:58:39,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:58:40,253 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:58:40,255 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:58:43,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:58:43,225 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:58:43,225 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:58:43,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:43 BoogieIcfgContainer [2022-11-20 10:58:43,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:58:43,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:58:43,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:58:43,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:58:43,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:58:36" (1/3) ... [2022-11-20 10:58:43,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5ee1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:58:43, skipping insertion in model container [2022-11-20 10:58:43,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:39" (2/3) ... [2022-11-20 10:58:43,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5ee1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:58:43, skipping insertion in model container [2022-11-20 10:58:43,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:43" (3/3) ... [2022-11-20 10:58:43,245 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-20 10:58:43,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:58:43,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-20 10:58:43,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:58:43,373 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;@3f7e1dea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:58:43,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-20 10:58:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 999 states, 986 states have (on average 1.8123732251521298) internal successors, (1787), 998 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-20 10:58:43,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:43,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:43,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-20 10:58:43,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:43,444 INFO L85 PathProgramCache]: Analyzing trace with hash -85310569, now seen corresponding path program 1 times [2022-11-20 10:58:43,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:43,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605036113] [2022-11-20 10:58:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:44,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605036113] [2022-11-20 10:58:44,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605036113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:44,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:44,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224219875] [2022-11-20 10:58:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:44,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:44,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:44,652 INFO L87 Difference]: Start difference. First operand has 999 states, 986 states have (on average 1.8123732251521298) internal successors, (1787), 998 states have internal predecessors, (1787), 0 states have call successors, (0), 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 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:45,030 INFO L93 Difference]: Finished difference Result 1757 states and 3116 transitions. [2022-11-20 10:58:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:45,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 308 [2022-11-20 10:58:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:45,061 INFO L225 Difference]: With dead ends: 1757 [2022-11-20 10:58:45,061 INFO L226 Difference]: Without dead ends: 1465 [2022-11-20 10:58:45,066 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 [2022-11-20 10:58:45,069 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 999 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:45,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 3253 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:58:45,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-11-20 10:58:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1463. [2022-11-20 10:58:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1451 states have (on average 1.5506547208821502) internal successors, (2250), 1462 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:45,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2250 transitions. [2022-11-20 10:58:45,187 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2250 transitions. Word has length 308 [2022-11-20 10:58:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:45,189 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2250 transitions. [2022-11-20 10:58:45,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:45,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2250 transitions. [2022-11-20 10:58:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-20 10:58:45,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:45,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:58:45,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-20 10:58:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1477444319, now seen corresponding path program 1 times [2022-11-20 10:58:45,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:45,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4475626] [2022-11-20 10:58:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:45,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:45,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:45,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4475626] [2022-11-20 10:58:45,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4475626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:45,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:45,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:45,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072210581] [2022-11-20 10:58:45,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:45,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:45,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:45,646 INFO L87 Difference]: Start difference. First operand 1463 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:46,043 INFO L93 Difference]: Finished difference Result 2860 states and 4447 transitions. [2022-11-20 10:58:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:46,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 308 [2022-11-20 10:58:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:46,055 INFO L225 Difference]: With dead ends: 2860 [2022-11-20 10:58:46,056 INFO L226 Difference]: Without dead ends: 2491 [2022-11-20 10:58:46,062 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 [2022-11-20 10:58:46,064 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 889 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:46,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2824 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:58:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-11-20 10:58:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2489. [2022-11-20 10:58:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2477 states have (on average 1.5538958417440452) internal successors, (3849), 2488 states have internal predecessors, (3849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3849 transitions. [2022-11-20 10:58:46,180 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3849 transitions. Word has length 308 [2022-11-20 10:58:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:46,181 INFO L495 AbstractCegarLoop]: Abstraction has 2489 states and 3849 transitions. [2022-11-20 10:58:46,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3849 transitions. [2022-11-20 10:58:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-20 10:58:46,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:46,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:46,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:58:46,191 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-20 10:58:46,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1477875295, now seen corresponding path program 1 times [2022-11-20 10:58:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:46,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729145037] [2022-11-20 10:58:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:46,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:47,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:47,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729145037] [2022-11-20 10:58:47,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729145037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:47,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:47,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:58:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689210550] [2022-11-20 10:58:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:47,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:58:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:58:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:58:47,260 INFO L87 Difference]: Start difference. First operand 2489 states and 3849 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:47,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:47,740 INFO L93 Difference]: Finished difference Result 7363 states and 11370 transitions. [2022-11-20 10:58:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:58:47,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 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 308 [2022-11-20 10:58:47,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:47,758 INFO L225 Difference]: With dead ends: 7363 [2022-11-20 10:58:47,759 INFO L226 Difference]: Without dead ends: 4885 [2022-11-20 10:58:47,762 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 [2022-11-20 10:58:47,765 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 3359 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:47,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 3944 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:58:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-11-20 10:58:48,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4714. [2022-11-20 10:58:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 4702 states have (on average 1.5480646533390048) internal successors, (7279), 4713 states have internal predecessors, (7279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 7279 transitions. [2022-11-20 10:58:48,089 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 7279 transitions. Word has length 308 [2022-11-20 10:58:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:48,089 INFO L495 AbstractCegarLoop]: Abstraction has 4714 states and 7279 transitions. [2022-11-20 10:58:48,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 7279 transitions. [2022-11-20 10:58:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-20 10:58:48,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:48,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:48,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:58:48,103 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)] === [2022-11-20 10:58:48,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash 157578207, now seen corresponding path program 1 times [2022-11-20 10:58:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:48,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230165945] [2022-11-20 10:58:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:48,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:48,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230165945] [2022-11-20 10:58:48,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230165945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:48,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:48,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:48,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310804632] [2022-11-20 10:58:48,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:48,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:48,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:48,391 INFO L87 Difference]: Start difference. First operand 4714 states and 7279 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:49,280 INFO L93 Difference]: Finished difference Result 13840 states and 21315 transitions. [2022-11-20 10:58:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:49,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2022-11-20 10:58:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:49,314 INFO L225 Difference]: With dead ends: 13840 [2022-11-20 10:58:49,315 INFO L226 Difference]: Without dead ends: 9251 [2022-11-20 10:58:49,324 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 [2022-11-20 10:58:49,327 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 1390 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 4414 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 [2022-11-20 10:58:49,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 4414 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:58:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2022-11-20 10:58:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 9080. [2022-11-20 10:58:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 9068 states have (on average 1.5403617115130128) internal successors, (13968), 9079 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 13968 transitions. [2022-11-20 10:58:50,206 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 13968 transitions. Word has length 310 [2022-11-20 10:58:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:50,207 INFO L495 AbstractCegarLoop]: Abstraction has 9080 states and 13968 transitions. [2022-11-20 10:58:50,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 13968 transitions. [2022-11-20 10:58:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-20 10:58:50,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:50,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:50,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:58:50,227 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)] === [2022-11-20 10:58:50,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:50,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1863589604, now seen corresponding path program 1 times [2022-11-20 10:58:50,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:50,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152897949] [2022-11-20 10:58:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:50,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:50,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:50,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152897949] [2022-11-20 10:58:50,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152897949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:50,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:50,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:50,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328005903] [2022-11-20 10:58:50,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:50,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:50,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:50,429 INFO L87 Difference]: Start difference. First operand 9080 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:52,221 INFO L93 Difference]: Finished difference Result 27173 states and 41788 transitions. [2022-11-20 10:58:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2022-11-20 10:58:52,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:52,292 INFO L225 Difference]: With dead ends: 27173 [2022-11-20 10:58:52,292 INFO L226 Difference]: Without dead ends: 18131 [2022-11-20 10:58:52,305 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 [2022-11-20 10:58:52,305 INFO L413 NwaCegarLoop]: 3020 mSDtfsCounter, 1507 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 4528 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 [2022-11-20 10:58:52,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 4528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:58:52,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18131 states. [2022-11-20 10:58:53,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18131 to 9099. [2022-11-20 10:58:53,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9099 states, 9087 states have (on average 1.5402222955871026) internal successors, (13996), 9098 states have internal predecessors, (13996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9099 states to 9099 states and 13996 transitions. [2022-11-20 10:58:53,328 INFO L78 Accepts]: Start accepts. Automaton has 9099 states and 13996 transitions. Word has length 310 [2022-11-20 10:58:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:53,328 INFO L495 AbstractCegarLoop]: Abstraction has 9099 states and 13996 transitions. [2022-11-20 10:58:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9099 states and 13996 transitions. [2022-11-20 10:58:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-20 10:58:53,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:53,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:53,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:58:53,349 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)] === [2022-11-20 10:58:53,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:53,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2037830479, now seen corresponding path program 1 times [2022-11-20 10:58:53,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:53,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991156117] [2022-11-20 10:58:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:53,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:53,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:53,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991156117] [2022-11-20 10:58:53,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991156117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:53,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:53,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:53,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156418825] [2022-11-20 10:58:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:53,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:53,605 INFO L87 Difference]: Start difference. First operand 9099 states and 13996 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:55,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:55,659 INFO L93 Difference]: Finished difference Result 27192 states and 41809 transitions. [2022-11-20 10:58:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2022-11-20 10:58:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:55,702 INFO L225 Difference]: With dead ends: 27192 [2022-11-20 10:58:55,703 INFO L226 Difference]: Without dead ends: 18149 [2022-11-20 10:58:55,715 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 [2022-11-20 10:58:55,717 INFO L413 NwaCegarLoop]: 3020 mSDtfsCounter, 1502 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 4528 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 [2022-11-20 10:58:55,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 4528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:58:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18149 states. [2022-11-20 10:58:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18149 to 9117. [2022-11-20 10:58:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9117 states, 9105 states have (on average 1.5394838001098297) internal successors, (14017), 9116 states have internal predecessors, (14017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9117 states to 9117 states and 14017 transitions. [2022-11-20 10:58:56,817 INFO L78 Accepts]: Start accepts. Automaton has 9117 states and 14017 transitions. Word has length 311 [2022-11-20 10:58:56,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:56,817 INFO L495 AbstractCegarLoop]: Abstraction has 9117 states and 14017 transitions. [2022-11-20 10:58:56,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:56,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9117 states and 14017 transitions. [2022-11-20 10:58:56,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 10:58:56,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:56,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:56,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:58:56,836 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)] === [2022-11-20 10:58:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1963640314, now seen corresponding path program 1 times [2022-11-20 10:58:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272853881] [2022-11-20 10:58:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:56,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:57,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:57,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272853881] [2022-11-20 10:58:57,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272853881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:57,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:57,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:57,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882191187] [2022-11-20 10:58:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:57,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:57,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:57,070 INFO L87 Difference]: Start difference. First operand 9117 states and 14017 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:58,964 INFO L93 Difference]: Finished difference Result 25718 states and 39429 transitions. [2022-11-20 10:58:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2022-11-20 10:58:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:59,009 INFO L225 Difference]: With dead ends: 25718 [2022-11-20 10:58:59,009 INFO L226 Difference]: Without dead ends: 16842 [2022-11-20 10:58:59,022 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 [2022-11-20 10:58:59,023 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 1385 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 4394 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 [2022-11-20 10:58:59,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 4394 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:58:59,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16842 states. [2022-11-20 10:59:01,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16842 to 16671. [2022-11-20 10:59:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16671 states, 16659 states have (on average 1.5287832402905337) internal successors, (25468), 16670 states have internal predecessors, (25468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:01,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16671 states to 16671 states and 25468 transitions. [2022-11-20 10:59:01,278 INFO L78 Accepts]: Start accepts. Automaton has 16671 states and 25468 transitions. Word has length 312 [2022-11-20 10:59:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:01,279 INFO L495 AbstractCegarLoop]: Abstraction has 16671 states and 25468 transitions. [2022-11-20 10:59:01,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 16671 states and 25468 transitions. [2022-11-20 10:59:01,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 10:59:01,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:01,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:01,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:59:01,309 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)] === [2022-11-20 10:59:01,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:01,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1031936087, now seen corresponding path program 1 times [2022-11-20 10:59:01,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:01,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291975149] [2022-11-20 10:59:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:01,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:02,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291975149] [2022-11-20 10:59:02,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291975149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:02,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:02,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:59:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660916228] [2022-11-20 10:59:02,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:02,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:59:02,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:02,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:59:02,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:59:02,037 INFO L87 Difference]: Start difference. First operand 16671 states and 25468 transitions. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:05,067 INFO L93 Difference]: Finished difference Result 49080 states and 74843 transitions. [2022-11-20 10:59:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:59:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2022-11-20 10:59:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:05,140 INFO L225 Difference]: With dead ends: 49080 [2022-11-20 10:59:05,140 INFO L226 Difference]: Without dead ends: 32464 [2022-11-20 10:59:05,160 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 [2022-11-20 10:59:05,162 INFO L413 NwaCegarLoop]: 2428 mSDtfsCounter, 3494 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3494 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:05,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3494 Valid, 5298 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:59:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32464 states. [2022-11-20 10:59:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32464 to 32307. [2022-11-20 10:59:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32307 states, 32295 states have (on average 1.5172008050781856) internal successors, (48998), 32306 states have internal predecessors, (48998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:08,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32307 states to 32307 states and 48998 transitions. [2022-11-20 10:59:08,651 INFO L78 Accepts]: Start accepts. Automaton has 32307 states and 48998 transitions. Word has length 312 [2022-11-20 10:59:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:08,651 INFO L495 AbstractCegarLoop]: Abstraction has 32307 states and 48998 transitions. [2022-11-20 10:59:08,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 32307 states and 48998 transitions. [2022-11-20 10:59:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-20 10:59:08,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:08,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:08,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:59:08,696 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)] === [2022-11-20 10:59:08,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash -506893435, now seen corresponding path program 1 times [2022-11-20 10:59:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:08,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864466732] [2022-11-20 10:59:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:08,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:08,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864466732] [2022-11-20 10:59:08,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864466732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:08,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:08,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:59:08,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358035283] [2022-11-20 10:59:08,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:08,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:59:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:08,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:59:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:59:08,912 INFO L87 Difference]: Start difference. First operand 32307 states and 48998 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:14,070 INFO L93 Difference]: Finished difference Result 95033 states and 143817 transitions. [2022-11-20 10:59:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:59:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 314 [2022-11-20 10:59:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:14,209 INFO L225 Difference]: With dead ends: 95033 [2022-11-20 10:59:14,210 INFO L226 Difference]: Without dead ends: 63243 [2022-11-20 10:59:14,517 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 [2022-11-20 10:59:14,520 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 1367 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:14,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 4391 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:59:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63243 states. [2022-11-20 10:59:19,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63243 to 63094. [2022-11-20 10:59:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63094 states, 63082 states have (on average 1.5066421483148917) internal successors, (95042), 63093 states have internal predecessors, (95042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63094 states to 63094 states and 95042 transitions. [2022-11-20 10:59:20,004 INFO L78 Accepts]: Start accepts. Automaton has 63094 states and 95042 transitions. Word has length 314 [2022-11-20 10:59:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:20,004 INFO L495 AbstractCegarLoop]: Abstraction has 63094 states and 95042 transitions. [2022-11-20 10:59:20,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 63094 states and 95042 transitions. [2022-11-20 10:59:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-20 10:59:20,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:20,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:20,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:59:20,074 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)] === [2022-11-20 10:59:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash -574901982, now seen corresponding path program 1 times [2022-11-20 10:59:20,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699447691] [2022-11-20 10:59:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:20,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:59:20,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:20,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699447691] [2022-11-20 10:59:20,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699447691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:20,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:20,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:59:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689422704] [2022-11-20 10:59:20,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:20,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:59:20,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:20,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:59:20,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:59:20,926 INFO L87 Difference]: Start difference. First operand 63094 states and 95042 transitions. Second operand has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)