./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8 --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 cb0662c9d089c91eee245c4ba20c8a5ded4448bc1e3447fb871319b9022dab03 --- 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-e04fb08 [2022-11-16 11:07:52,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:52,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:52,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:52,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:52,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:52,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:52,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:52,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:52,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:52,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:52,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:52,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:52,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:52,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:52,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:52,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:52,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:52,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:52,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:52,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:52,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:52,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:52,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:52,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:52,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:52,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:52,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:52,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:52,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:52,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:52,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:52,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:52,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:52,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:52,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:52,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:52,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:52,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:52,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:52,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:52,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:07:53,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:53,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:53,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:53,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:53,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:53,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:53,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:53,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:53,038 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:53,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:53,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:53,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:53,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:53,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:53,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:07:53,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:53,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:07:53,042 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:53,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:07:53,043 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:53,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:07:53,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:53,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:53,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:53,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:53,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:53,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:53,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:07:53,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:53,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:53,053 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:07:53,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:07:53,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:07:53,054 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb0662c9d089c91eee245c4ba20c8a5ded4448bc1e3447fb871319b9022dab03 [2022-11-16 11:07:53,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:53,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:53,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:53,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:53,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:53,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:07:53,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/data/c294bfbab/b2d5d6b4b13640b1a0e4943167c43a1a/FLAG1f8a5415d [2022-11-16 11:07:54,439 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:54,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:07:54,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/data/c294bfbab/b2d5d6b4b13640b1a0e4943167c43a1a/FLAG1f8a5415d [2022-11-16 11:07:54,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/data/c294bfbab/b2d5d6b4b13640b1a0e4943167c43a1a [2022-11-16 11:07:54,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:54,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:54,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:54,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:54,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:54,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:54" (1/1) ... [2022-11-16 11:07:54,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655a9bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:54, skipping insertion in model container [2022-11-16 11:07:54,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:54" (1/1) ... [2022-11-16 11:07:54,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:55,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:56,191 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31734,31747] [2022-11-16 11:07:56,224 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32624,32637] [2022-11-16 11:07:56,269 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34326,34339] [2022-11-16 11:07:56,295 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35216,35229] [2022-11-16 11:07:56,362 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37733,37746] [2022-11-16 11:07:56,387 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38626,38639] [2022-11-16 11:07:56,423 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40331,40344] [2022-11-16 11:07:56,455 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41608,41621] [2022-11-16 11:07:56,672 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55657,55670] [2022-11-16 11:07:56,698 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56550,56563] [2022-11-16 11:07:56,735 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58255,58268] [2022-11-16 11:07:56,827 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62456,62469] [2022-11-16 11:07:57,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:57,057 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:57,613 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31734,31747] [2022-11-16 11:07:57,633 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32624,32637] [2022-11-16 11:07:57,668 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34326,34339] [2022-11-16 11:07:57,690 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35216,35229] [2022-11-16 11:07:57,736 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37733,37746] [2022-11-16 11:07:57,759 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38626,38639] [2022-11-16 11:07:57,794 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40331,40344] [2022-11-16 11:07:57,819 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41608,41621] [2022-11-16 11:07:58,001 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55657,55670] [2022-11-16 11:07:58,029 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56550,56563] [2022-11-16 11:07:58,063 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58255,58268] [2022-11-16 11:07:58,153 WARN L229 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_ec40dbe6-831b-4571-9d41-aab33f2d7600/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62456,62469] [2022-11-16 11:07:58,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:58,319 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:58,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58 WrapperNode [2022-11-16 11:07:58,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:58,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:58,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:58,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:58,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,497 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3846 [2022-11-16 11:07:58,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:58,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:58,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:58,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:58,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:58,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:58,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:58,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:58,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (1/1) ... [2022-11-16 11:07:58,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:58,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:58,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:58,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec40dbe6-831b-4571-9d41-aab33f2d7600/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:07:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:59,080 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:59,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:08:02,392 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:02,412 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:02,412 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:08:02,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:02 BoogieIcfgContainer [2022-11-16 11:08:02,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:02,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:08:02,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:08:02,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:08:02,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:54" (1/3) ... [2022-11-16 11:08:02,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4023eb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:02, skipping insertion in model container [2022-11-16 11:08:02,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:58" (2/3) ... [2022-11-16 11:08:02,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4023eb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:02, skipping insertion in model container [2022-11-16 11:08:02,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:02" (3/3) ... [2022-11-16 11:08:02,426 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:08:02,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:08:02,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-16 11:08:02,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:02,576 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;@7e025eb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:02,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-16 11:08:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 929 states, 916 states have (on average 1.8307860262008733) internal successors, (1677), 928 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-16 11:08:02,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:02,643 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] [2022-11-16 11:08:02,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-16 11:08:02,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:02,653 INFO L85 PathProgramCache]: Analyzing trace with hash -104575840, now seen corresponding path program 1 times [2022-11-16 11:08:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:02,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695634891] [2022-11-16 11:08:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:03,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:03,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695634891] [2022-11-16 11:08:03,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695634891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:03,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:03,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:03,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167988290] [2022-11-16 11:08:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:04,010 INFO L87 Difference]: Start difference. First operand has 929 states, 916 states have (on average 1.8307860262008733) internal successors, (1677), 928 states have internal predecessors, (1677), 0 states have call successors, (0), 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 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:04,440 INFO L93 Difference]: Finished difference Result 1608 states and 2878 transitions. [2022-11-16 11:08:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:04,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-16 11:08:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:04,469 INFO L225 Difference]: With dead ends: 1608 [2022-11-16 11:08:04,469 INFO L226 Difference]: Without dead ends: 1331 [2022-11-16 11:08:04,475 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 [2022-11-16 11:08:04,479 INFO L413 NwaCegarLoop]: 1832 mSDtfsCounter, 877 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:04,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 3052 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:08:04,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-11-16 11:08:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1329. [2022-11-16 11:08:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1317 states have (on average 1.5375854214123006) internal successors, (2025), 1328 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 2025 transitions. [2022-11-16 11:08:04,649 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 2025 transitions. Word has length 304 [2022-11-16 11:08:04,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:04,656 INFO L495 AbstractCegarLoop]: Abstraction has 1329 states and 2025 transitions. [2022-11-16 11:08:04,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 2025 transitions. [2022-11-16 11:08:04,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-16 11:08:04,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:04,674 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] [2022-11-16 11:08:04,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:08:04,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-16 11:08:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1949292730, now seen corresponding path program 1 times [2022-11-16 11:08:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:04,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873838846] [2022-11-16 11:08:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:05,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:05,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873838846] [2022-11-16 11:08:05,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873838846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:05,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:05,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:05,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357412881] [2022-11-16 11:08:05,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:05,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:05,287 INFO L87 Difference]: Start difference. First operand 1329 states and 2025 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:05,630 INFO L93 Difference]: Finished difference Result 2530 states and 3899 transitions. [2022-11-16 11:08:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:05,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-16 11:08:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:05,645 INFO L225 Difference]: With dead ends: 2530 [2022-11-16 11:08:05,647 INFO L226 Difference]: Without dead ends: 2139 [2022-11-16 11:08:05,653 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 [2022-11-16 11:08:05,656 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 711 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:05,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2604 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:08:05,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-11-16 11:08:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2022-11-16 11:08:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2125 states have (on average 1.5374117647058823) internal successors, (3267), 2136 states have internal predecessors, (3267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3267 transitions. [2022-11-16 11:08:05,767 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3267 transitions. Word has length 304 [2022-11-16 11:08:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:05,768 INFO L495 AbstractCegarLoop]: Abstraction has 2137 states and 3267 transitions. [2022-11-16 11:08:05,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3267 transitions. [2022-11-16 11:08:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-16 11:08:05,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:05,778 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] [2022-11-16 11:08:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:08:05,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-16 11:08:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash 493949370, now seen corresponding path program 1 times [2022-11-16 11:08:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:05,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120159872] [2022-11-16 11:08:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:06,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120159872] [2022-11-16 11:08:06,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120159872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:06,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:06,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101550461] [2022-11-16 11:08:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:06,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:06,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:06,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:06,332 INFO L87 Difference]: Start difference. First operand 2137 states and 3267 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:06,824 INFO L93 Difference]: Finished difference Result 4396 states and 6808 transitions. [2022-11-16 11:08:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:06,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-16 11:08:06,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:06,847 INFO L225 Difference]: With dead ends: 4396 [2022-11-16 11:08:06,847 INFO L226 Difference]: Without dead ends: 3759 [2022-11-16 11:08:06,850 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 [2022-11-16 11:08:06,853 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 730 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:06,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 2594 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:08:06,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2022-11-16 11:08:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3757. [2022-11-16 11:08:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 3745 states have (on average 1.5367156208277704) internal successors, (5755), 3756 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:07,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5755 transitions. [2022-11-16 11:08:07,088 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5755 transitions. Word has length 304 [2022-11-16 11:08:07,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:07,089 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5755 transitions. [2022-11-16 11:08:07,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5755 transitions. [2022-11-16 11:08:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-16 11:08:07,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:07,102 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] [2022-11-16 11:08:07,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:08:07,102 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-16 11:08:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash 440362699, now seen corresponding path program 1 times [2022-11-16 11:08:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026293054] [2022-11-16 11:08:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:07,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:07,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:07,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026293054] [2022-11-16 11:08:07,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026293054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:07,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:07,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:07,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985226833] [2022-11-16 11:08:07,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:07,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:07,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:07,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:07,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:07,501 INFO L87 Difference]: Start difference. First operand 3757 states and 5755 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:08,147 INFO L93 Difference]: Finished difference Result 8136 states and 12632 transitions. [2022-11-16 11:08:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:08,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-16 11:08:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:08,180 INFO L225 Difference]: With dead ends: 8136 [2022-11-16 11:08:08,181 INFO L226 Difference]: Without dead ends: 7007 [2022-11-16 11:08:08,188 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 [2022-11-16 11:08:08,191 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 775 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2588 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 [2022-11-16 11:08:08,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2588 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:08:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2022-11-16 11:08:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 7005. [2022-11-16 11:08:08,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 6993 states have (on average 1.5356785356785356) internal successors, (10739), 7004 states have internal predecessors, (10739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10739 transitions. [2022-11-16 11:08:08,625 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 10739 transitions. Word has length 304 [2022-11-16 11:08:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:08,626 INFO L495 AbstractCegarLoop]: Abstraction has 7005 states and 10739 transitions. [2022-11-16 11:08:08,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 10739 transitions. [2022-11-16 11:08:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-16 11:08:08,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:08,643 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] [2022-11-16 11:08:08,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:08:08,644 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)] === [2022-11-16 11:08:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:08,645 INFO L85 PathProgramCache]: Analyzing trace with hash 439931723, now seen corresponding path program 1 times [2022-11-16 11:08:08,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:08,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681670117] [2022-11-16 11:08:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:08,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:10,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:10,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681670117] [2022-11-16 11:08:10,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681670117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:10,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:10,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:10,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938381612] [2022-11-16 11:08:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:10,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:08:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:10,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:08:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:08:10,080 INFO L87 Difference]: Start difference. First operand 7005 states and 10739 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:11,458 INFO L93 Difference]: Finished difference Result 20745 states and 31780 transitions. [2022-11-16 11:08:11,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:08:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-11-16 11:08:11,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:11,547 INFO L225 Difference]: With dead ends: 20745 [2022-11-16 11:08:11,547 INFO L226 Difference]: Without dead ends: 13751 [2022-11-16 11:08:11,559 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 [2022-11-16 11:08:11,560 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 2971 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:11,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2971 Valid, 3748 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:08:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13751 states. [2022-11-16 11:08:12,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13751 to 13563. [2022-11-16 11:08:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13563 states, 13551 states have (on average 1.527636336801712) internal successors, (20701), 13562 states have internal predecessors, (20701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 20701 transitions. [2022-11-16 11:08:12,930 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 20701 transitions. Word has length 304 [2022-11-16 11:08:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:12,931 INFO L495 AbstractCegarLoop]: Abstraction has 13563 states and 20701 transitions. [2022-11-16 11:08:12,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:12,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 20701 transitions. [2022-11-16 11:08:12,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-16 11:08:12,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:12,968 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] [2022-11-16 11:08:12,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:08:12,969 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)] === [2022-11-16 11:08:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1626283281, now seen corresponding path program 1 times [2022-11-16 11:08:12,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:12,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681690730] [2022-11-16 11:08:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:12,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:13,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:13,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681690730] [2022-11-16 11:08:13,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681690730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:13,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:13,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:13,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207771629] [2022-11-16 11:08:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:13,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:13,326 INFO L87 Difference]: Start difference. First operand 13563 states and 20701 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:15,942 INFO L93 Difference]: Finished difference Result 40056 states and 61063 transitions. [2022-11-16 11:08:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:15,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 306 [2022-11-16 11:08:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:16,018 INFO L225 Difference]: With dead ends: 40056 [2022-11-16 11:08:16,018 INFO L226 Difference]: Without dead ends: 26618 [2022-11-16 11:08:16,039 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 [2022-11-16 11:08:16,041 INFO L413 NwaCegarLoop]: 2678 mSDtfsCounter, 1265 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 4021 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 [2022-11-16 11:08:16,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 4021 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:08:16,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26618 states. [2022-11-16 11:08:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26618 to 26430. [2022-11-16 11:08:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26430 states, 26418 states have (on average 1.5188886365356953) internal successors, (40126), 26429 states have internal predecessors, (40126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26430 states to 26430 states and 40126 transitions. [2022-11-16 11:08:19,201 INFO L78 Accepts]: Start accepts. Automaton has 26430 states and 40126 transitions. Word has length 306 [2022-11-16 11:08:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:19,201 INFO L495 AbstractCegarLoop]: Abstraction has 26430 states and 40126 transitions. [2022-11-16 11:08:19,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 26430 states and 40126 transitions. [2022-11-16 11:08:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-16 11:08:19,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:19,254 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] [2022-11-16 11:08:19,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:08:19,255 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)] === [2022-11-16 11:08:19,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1215354996, now seen corresponding path program 1 times [2022-11-16 11:08:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:19,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738592810] [2022-11-16 11:08:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:19,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:19,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738592810] [2022-11-16 11:08:19,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738592810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:19,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:19,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840815434] [2022-11-16 11:08:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:19,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:19,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:19,443 INFO L87 Difference]: Start difference. First operand 26430 states and 40126 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:23,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:23,851 INFO L93 Difference]: Finished difference Result 79223 states and 120262 transitions. [2022-11-16 11:08:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:23,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 306 [2022-11-16 11:08:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:24,050 INFO L225 Difference]: With dead ends: 79223 [2022-11-16 11:08:24,050 INFO L226 Difference]: Without dead ends: 52831 [2022-11-16 11:08:24,099 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 [2022-11-16 11:08:24,102 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 1389 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 4174 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 [2022-11-16 11:08:24,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 4174 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:08:24,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52831 states. [2022-11-16 11:08:26,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52831 to 26449. [2022-11-16 11:08:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26449 states, 26437 states have (on average 1.5188561485796421) internal successors, (40154), 26448 states have internal predecessors, (40154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26449 states to 26449 states and 40154 transitions. [2022-11-16 11:08:27,087 INFO L78 Accepts]: Start accepts. Automaton has 26449 states and 40154 transitions. Word has length 306 [2022-11-16 11:08:27,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:27,087 INFO L495 AbstractCegarLoop]: Abstraction has 26449 states and 40154 transitions. [2022-11-16 11:08:27,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26449 states and 40154 transitions. [2022-11-16 11:08:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-16 11:08:27,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:27,145 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] [2022-11-16 11:08:27,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:08:27,146 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)] === [2022-11-16 11:08:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash 466565083, now seen corresponding path program 1 times [2022-11-16 11:08:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290184667] [2022-11-16 11:08:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:27,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:27,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290184667] [2022-11-16 11:08:27,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290184667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:27,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:27,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:27,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837039004] [2022-11-16 11:08:27,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:27,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:27,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:27,319 INFO L87 Difference]: Start difference. First operand 26449 states and 40154 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:31,695 INFO L93 Difference]: Finished difference Result 79242 states and 120283 transitions. [2022-11-16 11:08:31,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:31,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2022-11-16 11:08:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:31,866 INFO L225 Difference]: With dead ends: 79242 [2022-11-16 11:08:31,866 INFO L226 Difference]: Without dead ends: 52849 [2022-11-16 11:08:31,905 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 [2022-11-16 11:08:31,905 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 1384 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4174 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 [2022-11-16 11:08:31,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 4174 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:08:31,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52849 states. [2022-11-16 11:08:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52849 to 26467. [2022-11-16 11:08:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26467 states, 26455 states have (on average 1.5186165186165186) internal successors, (40175), 26466 states have internal predecessors, (40175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26467 states to 26467 states and 40175 transitions. [2022-11-16 11:08:34,819 INFO L78 Accepts]: Start accepts. Automaton has 26467 states and 40175 transitions. Word has length 307 [2022-11-16 11:08:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:34,820 INFO L495 AbstractCegarLoop]: Abstraction has 26467 states and 40175 transitions. [2022-11-16 11:08:34,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 26467 states and 40175 transitions. [2022-11-16 11:08:34,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-16 11:08:34,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:34,857 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] [2022-11-16 11:08:34,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:08:34,858 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)] === [2022-11-16 11:08:34,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash -806361433, now seen corresponding path program 1 times [2022-11-16 11:08:34,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:34,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075566325] [2022-11-16 11:08:34,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075566325] [2022-11-16 11:08:36,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075566325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:36,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:36,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:36,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776975718] [2022-11-16 11:08:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:36,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:08:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:36,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:08:36,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:08:36,040 INFO L87 Difference]: Start difference. First operand 26467 states and 40175 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 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) [2022-11-16 11:08:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:42,245 INFO L93 Difference]: Finished difference Result 78146 states and 118490 transitions. [2022-11-16 11:08:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:08:42,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 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 [2022-11-16 11:08:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:42,361 INFO L225 Difference]: With dead ends: 78146 [2022-11-16 11:08:42,361 INFO L226 Difference]: Without dead ends: 51722 [2022-11-16 11:08:42,398 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 [2022-11-16 11:08:42,401 INFO L413 NwaCegarLoop]: 2400 mSDtfsCounter, 4322 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4322 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:42,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4322 Valid, 3725 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:08:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51722 states. [2022-11-16 11:08:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51722 to 51558. [2022-11-16 11:08:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51558 states, 51546 states have (on average 1.5083032631047997) internal successors, (77747), 51557 states have internal predecessors, (77747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51558 states to 51558 states and 77747 transitions. [2022-11-16 11:08:48,227 INFO L78 Accepts]: Start accepts. Automaton has 51558 states and 77747 transitions. Word has length 308 [2022-11-16 11:08:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:48,228 INFO L495 AbstractCegarLoop]: Abstraction has 51558 states and 77747 transitions. [2022-11-16 11:08:48,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 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) [2022-11-16 11:08:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 51558 states and 77747 transitions. [2022-11-16 11:08:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-16 11:08:48,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:48,313 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] [2022-11-16 11:08:48,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:08:48,314 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)] === [2022-11-16 11:08:48,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1105996861, now seen corresponding path program 1 times [2022-11-16 11:08:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:48,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321340082] [2022-11-16 11:08:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:48,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:49,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:49,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321340082] [2022-11-16 11:08:49,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321340082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:49,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:49,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:49,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289769587] [2022-11-16 11:08:49,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:49,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:08:49,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:49,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:08:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:08:49,357 INFO L87 Difference]: Start difference. First operand 51558 states and 77747 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 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)