./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro --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 d5f122a2f661c35cf909df5e65028709a713dbb0aa782040b0d88c7cb2c6627f --- 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-8393723 [2022-11-18 21:10:02,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:10:02,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:10:02,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:10:02,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:10:02,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:10:02,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:10:02,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:10:02,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:10:02,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:10:02,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:10:02,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:10:02,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:10:02,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:10:02,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:10:02,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:10:02,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:10:02,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:10:02,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:10:02,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:10:02,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:10:02,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:10:02,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:10:02,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:10:02,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:10:02,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:10:02,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:10:02,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:10:02,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:10:02,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:10:02,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:10:02,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:10:02,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:10:02,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:10:02,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:10:02,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:10:02,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:10:02,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:10:02,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:10:02,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:10:02,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:10:02,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:10:02,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:10:02,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:10:02,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:10:02,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:10:02,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:10:02,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:10:02,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:10:02,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:10:02,271 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:10:02,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:10:02,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:10:02,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:10:02,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:10:02,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:10:02,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:10:02,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:10:02,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:10:02,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:10:02,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:10:02,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:10:02,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:10:02,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:10:02,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:10:02,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:10:02,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:10:02,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:10:02,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:10:02,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:10:02,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:10:02,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:10:02,279 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:10:02,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:10:02,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:10:02,280 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5f122a2f661c35cf909df5e65028709a713dbb0aa782040b0d88c7cb2c6627f [2022-11-18 21:10:02,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:10:02,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:10:02,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:10:02,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:10:02,635 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:10:02,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-18 21:10:02,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/data/f22606d11/9d4abfcb6a874e1caf306db79039a301/FLAGa0d577b04 [2022-11-18 21:10:03,429 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:10:03,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-18 21:10:03,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/data/f22606d11/9d4abfcb6a874e1caf306db79039a301/FLAGa0d577b04 [2022-11-18 21:10:03,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/data/f22606d11/9d4abfcb6a874e1caf306db79039a301 [2022-11-18 21:10:03,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:10:03,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:10:03,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:10:03,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:10:03,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:10:03,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:10:03" (1/1) ... [2022-11-18 21:10:03,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea1d60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:03, skipping insertion in model container [2022-11-18 21:10:03,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:10:03" (1/1) ... [2022-11-18 21:10:03,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:10:03,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:10:04,558 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35167,35180] [2022-11-18 21:10:04,585 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36057,36070] [2022-11-18 21:10:04,623 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37945,37958] [2022-11-18 21:10:04,645 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38835,38848] [2022-11-18 21:10:04,697 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41666,41679] [2022-11-18 21:10:04,720 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42559,42572] [2022-11-18 21:10:04,757 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[44450,44463] [2022-11-18 21:10:04,787 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45727,45740] [2022-11-18 21:10:05,030 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61515,61528] [2022-11-18 21:10:05,053 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62408,62421] [2022-11-18 21:10:05,089 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64299,64312] [2022-11-18 21:10:05,163 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[68814,68827] [2022-11-18 21:10:05,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:10:05,424 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:10:05,816 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35167,35180] [2022-11-18 21:10:05,839 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36057,36070] [2022-11-18 21:10:05,876 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37945,37958] [2022-11-18 21:10:05,902 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38835,38848] [2022-11-18 21:10:05,956 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41666,41679] [2022-11-18 21:10:05,981 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42559,42572] [2022-11-18 21:10:06,019 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[44450,44463] [2022-11-18 21:10:06,047 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45727,45740] [2022-11-18 21:10:06,229 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61515,61528] [2022-11-18 21:10:06,257 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62408,62421] [2022-11-18 21:10:06,303 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64299,64312] [2022-11-18 21:10:06,374 WARN L234 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_61bbd024-ac67-46fd-b9e1-5622461a0e67/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[68814,68827] [2022-11-18 21:10:06,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:10:06,524 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:10:06,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06 WrapperNode [2022-11-18 21:10:06,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:10:06,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:10:06,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:10:06,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:10:06,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,684 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4186 [2022-11-18 21:10:06,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:10:06,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:10:06,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:10:06,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:10:06,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:10:06,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:10:06,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:10:06,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:10:06,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (1/1) ... [2022-11-18 21:10:06,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:10:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:06,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:10:06,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bbd024-ac67-46fd-b9e1-5622461a0e67/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:10:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:10:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:10:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:10:07,255 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:10:07,257 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:10:10,694 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:10:10,720 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:10:10,720 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:10:10,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:10:10 BoogieIcfgContainer [2022-11-18 21:10:10,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:10:10,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:10:10,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:10:10,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:10:10,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:10:03" (1/3) ... [2022-11-18 21:10:10,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2bd5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:10:10, skipping insertion in model container [2022-11-18 21:10:10,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:10:06" (2/3) ... [2022-11-18 21:10:10,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2bd5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:10:10, skipping insertion in model container [2022-11-18 21:10:10,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:10:10" (3/3) ... [2022-11-18 21:10:10,739 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-18 21:10:10,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:10:10,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-18 21:10:10,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:10:10,886 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;@4157387e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:10:10,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 21:10:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 1022 states, 1009 states have (on average 1.8166501486620417) internal successors, (1833), 1021 states have internal predecessors, (1833), 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) [2022-11-18 21:10:10,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-18 21:10:10,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:10,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:10,950 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)] === [2022-11-18 21:10:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:10,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1604507879, now seen corresponding path program 1 times [2022-11-18 21:10:10,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:10,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232276130] [2022-11-18 21:10:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:10,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:12,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232276130] [2022-11-18 21:10:12,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232276130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:12,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:12,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:12,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683994976] [2022-11-18 21:10:12,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:12,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:12,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:12,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:12,214 INFO L87 Difference]: Start difference. First operand has 1022 states, 1009 states have (on average 1.8166501486620417) internal successors, (1833), 1021 states have internal predecessors, (1833), 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 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:12,660 INFO L93 Difference]: Finished difference Result 1787 states and 3176 transitions. [2022-11-18 21:10:12,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:12,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 323 [2022-11-18 21:10:12,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:12,700 INFO L225 Difference]: With dead ends: 1787 [2022-11-18 21:10:12,701 INFO L226 Difference]: Without dead ends: 1479 [2022-11-18 21:10:12,707 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 [2022-11-18 21:10:12,711 INFO L413 NwaCegarLoop]: 2021 mSDtfsCounter, 1003 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 3350 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 [2022-11-18 21:10:12,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 3350 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:10:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-11-18 21:10:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1477. [2022-11-18 21:10:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1465 states have (on average 1.5419795221843002) internal successors, (2259), 1476 states have internal predecessors, (2259), 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) [2022-11-18 21:10:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2259 transitions. [2022-11-18 21:10:12,881 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2259 transitions. Word has length 323 [2022-11-18 21:10:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:12,885 INFO L495 AbstractCegarLoop]: Abstraction has 1477 states and 2259 transitions. [2022-11-18 21:10:12,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2259 transitions. [2022-11-18 21:10:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-18 21:10:12,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:12,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:10:12,907 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)] === [2022-11-18 21:10:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash -525103132, now seen corresponding path program 1 times [2022-11-18 21:10:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:12,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705971776] [2022-11-18 21:10:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:13,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:13,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705971776] [2022-11-18 21:10:13,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705971776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:13,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:13,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675161776] [2022-11-18 21:10:13,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:13,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:13,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:13,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:13,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:13,520 INFO L87 Difference]: Start difference. First operand 1477 states and 2259 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:13,803 INFO L93 Difference]: Finished difference Result 2838 states and 4393 transitions. [2022-11-18 21:10:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 323 [2022-11-18 21:10:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:13,818 INFO L225 Difference]: With dead ends: 2838 [2022-11-18 21:10:13,819 INFO L226 Difference]: Without dead ends: 2397 [2022-11-18 21:10:13,824 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 [2022-11-18 21:10:13,827 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 827 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2882 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 [2022-11-18 21:10:13,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2882 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:10:13,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-18 21:10:13,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2395. [2022-11-18 21:10:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2383 states have (on average 1.546370121695342) internal successors, (3685), 2394 states have internal predecessors, (3685), 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) [2022-11-18 21:10:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3685 transitions. [2022-11-18 21:10:13,968 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3685 transitions. Word has length 323 [2022-11-18 21:10:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:13,969 INFO L495 AbstractCegarLoop]: Abstraction has 2395 states and 3685 transitions. [2022-11-18 21:10:13,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3685 transitions. [2022-11-18 21:10:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-18 21:10:13,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:13,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:10:13,980 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)] === [2022-11-18 21:10:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1829573766, now seen corresponding path program 1 times [2022-11-18 21:10:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:13,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016865189] [2022-11-18 21:10:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:13,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:14,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016865189] [2022-11-18 21:10:14,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016865189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:14,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:14,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676468699] [2022-11-18 21:10:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:14,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:14,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:14,499 INFO L87 Difference]: Start difference. First operand 2395 states and 3685 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:14,955 INFO L93 Difference]: Finished difference Result 4962 states and 7734 transitions. [2022-11-18 21:10:14,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:14,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 323 [2022-11-18 21:10:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:14,975 INFO L225 Difference]: With dead ends: 4962 [2022-11-18 21:10:14,975 INFO L226 Difference]: Without dead ends: 4237 [2022-11-18 21:10:14,978 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 [2022-11-18 21:10:14,980 INFO L413 NwaCegarLoop]: 1724 mSDtfsCounter, 847 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 2873 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 [2022-11-18 21:10:14,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 2873 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:10:14,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2022-11-18 21:10:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 4235. [2022-11-18 21:10:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4235 states, 4223 states have (on average 1.548898887047123) internal successors, (6541), 4234 states have internal predecessors, (6541), 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) [2022-11-18 21:10:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4235 states to 4235 states and 6541 transitions. [2022-11-18 21:10:15,211 INFO L78 Accepts]: Start accepts. Automaton has 4235 states and 6541 transitions. Word has length 323 [2022-11-18 21:10:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:15,212 INFO L495 AbstractCegarLoop]: Abstraction has 4235 states and 6541 transitions. [2022-11-18 21:10:15,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4235 states and 6541 transitions. [2022-11-18 21:10:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-18 21:10:15,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:15,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:15,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:10:15,223 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)] === [2022-11-18 21:10:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1114506225, now seen corresponding path program 1 times [2022-11-18 21:10:15,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:15,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379889175] [2022-11-18 21:10:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:15,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379889175] [2022-11-18 21:10:15,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379889175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:15,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:15,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:15,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320378896] [2022-11-18 21:10:15,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:15,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:15,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:15,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:15,613 INFO L87 Difference]: Start difference. First operand 4235 states and 6541 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:16,226 INFO L93 Difference]: Finished difference Result 9214 states and 14418 transitions. [2022-11-18 21:10:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 323 [2022-11-18 21:10:16,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:16,256 INFO L225 Difference]: With dead ends: 9214 [2022-11-18 21:10:16,256 INFO L226 Difference]: Without dead ends: 7925 [2022-11-18 21:10:16,259 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 [2022-11-18 21:10:16,260 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 898 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 2873 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 [2022-11-18 21:10:16,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 2873 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:10:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2022-11-18 21:10:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 7923. [2022-11-18 21:10:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7911 states have (on average 1.5498672734167616) internal successors, (12261), 7922 states have internal predecessors, (12261), 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) [2022-11-18 21:10:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 12261 transitions. [2022-11-18 21:10:16,612 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 12261 transitions. Word has length 323 [2022-11-18 21:10:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:16,613 INFO L495 AbstractCegarLoop]: Abstraction has 7923 states and 12261 transitions. [2022-11-18 21:10:16,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2022-11-18 21:10:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 12261 transitions. [2022-11-18 21:10:16,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-18 21:10:16,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:16,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:16,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:10:16,630 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)] === [2022-11-18 21:10:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:16,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1114075249, now seen corresponding path program 1 times [2022-11-18 21:10:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:16,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835721694] [2022-11-18 21:10:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:16,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:17,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:17,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835721694] [2022-11-18 21:10:17,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835721694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:17,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:17,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:10:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747392105] [2022-11-18 21:10:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:17,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:10:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:10:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:10:17,789 INFO L87 Difference]: Start difference. First operand 7923 states and 12261 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2022-11-18 21:10:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:19,073 INFO L93 Difference]: Finished difference Result 23450 states and 36248 transitions. [2022-11-18 21:10:19,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:10:19,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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 323 [2022-11-18 21:10:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:19,150 INFO L225 Difference]: With dead ends: 23450 [2022-11-18 21:10:19,150 INFO L226 Difference]: Without dead ends: 15538 [2022-11-18 21:10:19,165 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 [2022-11-18 21:10:19,167 INFO L413 NwaCegarLoop]: 2480 mSDtfsCounter, 3466 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:19,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3466 Valid, 3947 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:10:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15538 states. [2022-11-18 21:10:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15538 to 15319. [2022-11-18 21:10:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15319 states, 15307 states have (on average 1.5428235447834324) internal successors, (23616), 15318 states have internal predecessors, (23616), 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) [2022-11-18 21:10:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15319 states to 15319 states and 23616 transitions. [2022-11-18 21:10:20,311 INFO L78 Accepts]: Start accepts. Automaton has 15319 states and 23616 transitions. Word has length 323 [2022-11-18 21:10:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:20,311 INFO L495 AbstractCegarLoop]: Abstraction has 15319 states and 23616 transitions. [2022-11-18 21:10:20,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2022-11-18 21:10:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 15319 states and 23616 transitions. [2022-11-18 21:10:20,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-18 21:10:20,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:20,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:20,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:10:20,340 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)] === [2022-11-18 21:10:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1834779751, now seen corresponding path program 1 times [2022-11-18 21:10:20,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:20,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194756527] [2022-11-18 21:10:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:20,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:20,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:20,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194756527] [2022-11-18 21:10:20,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194756527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:20,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:20,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:20,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430799947] [2022-11-18 21:10:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:20,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:20,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:20,727 INFO L87 Difference]: Start difference. First operand 15319 states and 23616 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-18 21:10:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:23,099 INFO L93 Difference]: Finished difference Result 45226 states and 69612 transitions. [2022-11-18 21:10:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:23,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 325 [2022-11-18 21:10:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:23,186 INFO L225 Difference]: With dead ends: 45226 [2022-11-18 21:10:23,186 INFO L226 Difference]: Without dead ends: 30032 [2022-11-18 21:10:23,205 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 [2022-11-18 21:10:23,207 INFO L413 NwaCegarLoop]: 3009 mSDtfsCounter, 1402 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 4486 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 [2022-11-18 21:10:23,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 4486 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:10:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30032 states. [2022-11-18 21:10:25,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30032 to 29813. [2022-11-18 21:10:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29813 states, 29801 states have (on average 1.5344787087681622) internal successors, (45729), 29812 states have internal predecessors, (45729), 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) [2022-11-18 21:10:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29813 states to 29813 states and 45729 transitions. [2022-11-18 21:10:25,972 INFO L78 Accepts]: Start accepts. Automaton has 29813 states and 45729 transitions. Word has length 325 [2022-11-18 21:10:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:25,973 INFO L495 AbstractCegarLoop]: Abstraction has 29813 states and 45729 transitions. [2022-11-18 21:10:25,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-18 21:10:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29813 states and 45729 transitions. [2022-11-18 21:10:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-18 21:10:26,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:26,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:26,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:10:26,026 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)] === [2022-11-18 21:10:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:26,027 INFO L85 PathProgramCache]: Analyzing trace with hash -354758974, now seen corresponding path program 1 times [2022-11-18 21:10:26,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:26,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230954150] [2022-11-18 21:10:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:26,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:26,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230954150] [2022-11-18 21:10:26,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230954150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:26,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:26,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:26,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180843135] [2022-11-18 21:10:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:26,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:26,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:26,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:26,198 INFO L87 Difference]: Start difference. First operand 29813 states and 45729 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-18 21:10:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:30,037 INFO L93 Difference]: Finished difference Result 89372 states and 137071 transitions. [2022-11-18 21:10:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 325 [2022-11-18 21:10:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:30,214 INFO L225 Difference]: With dead ends: 89372 [2022-11-18 21:10:30,214 INFO L226 Difference]: Without dead ends: 59597 [2022-11-18 21:10:30,259 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 [2022-11-18 21:10:30,260 INFO L413 NwaCegarLoop]: 3068 mSDtfsCounter, 1531 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 4600 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 [2022-11-18 21:10:30,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 4600 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:10:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59597 states. [2022-11-18 21:10:33,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59597 to 29832. [2022-11-18 21:10:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29832 states, 29820 states have (on average 1.5344399731723675) internal successors, (45757), 29831 states have internal predecessors, (45757), 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) [2022-11-18 21:10:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29832 states to 29832 states and 45757 transitions. [2022-11-18 21:10:33,356 INFO L78 Accepts]: Start accepts. Automaton has 29832 states and 45757 transitions. Word has length 325 [2022-11-18 21:10:33,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:33,357 INFO L495 AbstractCegarLoop]: Abstraction has 29832 states and 45757 transitions. [2022-11-18 21:10:33,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-18 21:10:33,357 INFO L276 IsEmpty]: Start isEmpty. Operand 29832 states and 45757 transitions. [2022-11-18 21:10:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-18 21:10:33,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:33,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:33,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:10:33,405 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)] === [2022-11-18 21:10:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:33,406 INFO L85 PathProgramCache]: Analyzing trace with hash 724936801, now seen corresponding path program 1 times [2022-11-18 21:10:33,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:33,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509485314] [2022-11-18 21:10:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:33,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:33,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509485314] [2022-11-18 21:10:33,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509485314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:33,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:33,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:33,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925899523] [2022-11-18 21:10:33,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:33,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:33,571 INFO L87 Difference]: Start difference. First operand 29832 states and 45757 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-11-18 21:10:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:37,490 INFO L93 Difference]: Finished difference Result 89391 states and 137092 transitions. [2022-11-18 21:10:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:37,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 326 [2022-11-18 21:10:37,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:37,609 INFO L225 Difference]: With dead ends: 89391 [2022-11-18 21:10:37,609 INFO L226 Difference]: Without dead ends: 59615 [2022-11-18 21:10:37,641 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 [2022-11-18 21:10:37,642 INFO L413 NwaCegarLoop]: 3068 mSDtfsCounter, 1526 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 4600 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 [2022-11-18 21:10:37,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 4600 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:10:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59615 states. [2022-11-18 21:10:40,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59615 to 29850. [2022-11-18 21:10:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29850 states, 29838 states have (on average 1.534218111133454) internal successors, (45778), 29849 states have internal predecessors, (45778), 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) [2022-11-18 21:10:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29850 states to 29850 states and 45778 transitions. [2022-11-18 21:10:40,295 INFO L78 Accepts]: Start accepts. Automaton has 29850 states and 45778 transitions. Word has length 326 [2022-11-18 21:10:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:40,296 INFO L495 AbstractCegarLoop]: Abstraction has 29850 states and 45778 transitions. [2022-11-18 21:10:40,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-11-18 21:10:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 29850 states and 45778 transitions. [2022-11-18 21:10:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-18 21:10:40,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:40,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:40,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:10:40,332 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)] === [2022-11-18 21:10:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash -804930964, now seen corresponding path program 1 times [2022-11-18 21:10:40,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:40,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439980442] [2022-11-18 21:10:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:40,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:40,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:40,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439980442] [2022-11-18 21:10:40,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439980442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:40,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:40,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:10:40,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147050446] [2022-11-18 21:10:40,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:40,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:10:40,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:40,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:10:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:10:40,750 INFO L87 Difference]: Start difference. First operand 29850 states and 45778 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2022-11-18 21:10:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:45,606 INFO L93 Difference]: Finished difference Result 84686 states and 129637 transitions. [2022-11-18 21:10:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:10:45,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 327 [2022-11-18 21:10:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:45,726 INFO L225 Difference]: With dead ends: 84686 [2022-11-18 21:10:45,726 INFO L226 Difference]: Without dead ends: 55077 [2022-11-18 21:10:45,761 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 [2022-11-18 21:10:45,762 INFO L413 NwaCegarLoop]: 2675 mSDtfsCounter, 1398 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 4152 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 [2022-11-18 21:10:45,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 4152 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:10:45,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55077 states. [2022-11-18 21:10:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55077 to 54858. [2022-11-18 21:10:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54858 states, 54846 states have (on average 1.5238303613754878) internal successors, (83576), 54857 states have internal predecessors, (83576), 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) [2022-11-18 21:10:50,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54858 states to 54858 states and 83576 transitions. [2022-11-18 21:10:50,575 INFO L78 Accepts]: Start accepts. Automaton has 54858 states and 83576 transitions. Word has length 327 [2022-11-18 21:10:50,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:50,580 INFO L495 AbstractCegarLoop]: Abstraction has 54858 states and 83576 transitions. [2022-11-18 21:10:50,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2022-11-18 21:10:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 54858 states and 83576 transitions. [2022-11-18 21:10:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-18 21:10:50,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:50,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:50,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:10:50,639 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)] === [2022-11-18 21:10:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:50,640 INFO L85 PathProgramCache]: Analyzing trace with hash -708984209, now seen corresponding path program 1 times [2022-11-18 21:10:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795731645] [2022-11-18 21:10:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:10:51,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795731645] [2022-11-18 21:10:51,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795731645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:51,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:51,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:10:51,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190476554] [2022-11-18 21:10:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:51,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:10:51,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:51,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:10:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:10:51,533 INFO L87 Difference]: Start difference. First operand 54858 states and 83576 transitions. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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)