./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ --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 a6a02224ad3116421a031fb474928d71f99a366daf138bf7c752aaea303a81f9 --- 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-dbf71c6-m [2022-10-17 10:23:51,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:23:51,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:23:51,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:23:51,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:23:51,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:23:51,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:23:51,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:23:51,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:23:51,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:23:51,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:23:51,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:23:51,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:23:51,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:23:51,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:23:51,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:23:51,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:23:51,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:23:51,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:23:51,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:23:51,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:23:51,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:23:51,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:23:51,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:23:51,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:23:51,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:23:51,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:23:51,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:23:51,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:23:51,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:23:51,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:23:51,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:23:51,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:23:51,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:23:51,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:23:51,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:23:51,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:23:51,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:23:51,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:23:51,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:23:51,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:23:51,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:23:51,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:23:51,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:23:51,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:23:51,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:23:51,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:23:51,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:23:51,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:23:51,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:23:51,787 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:23:51,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:23:51,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:23:51,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:23:51,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:23:51,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:23:51,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:23:51,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:23:51,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:23:51,789 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:23:51,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:23:51,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:23:51,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:23:51,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:23:51,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:23:51,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:23:51,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:23:51,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:23:51,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:23:51,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:23:51,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:23:51,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:23:51,792 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:23:51,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:23:51,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:23:51,793 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6a02224ad3116421a031fb474928d71f99a366daf138bf7c752aaea303a81f9 [2022-10-17 10:23:52,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:23:52,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:23:52,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:23:52,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:23:52,150 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:23:52,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-17 10:23:52,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/data/ab4c64ec1/f79751f28d8e472a9f54054a3dc3b2e6/FLAG0d461ad03 [2022-10-17 10:23:52,836 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:23:52,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-17 10:23:52,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/data/ab4c64ec1/f79751f28d8e472a9f54054a3dc3b2e6/FLAG0d461ad03 [2022-10-17 10:23:53,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/data/ab4c64ec1/f79751f28d8e472a9f54054a3dc3b2e6 [2022-10-17 10:23:53,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:23:53,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:23:53,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:23:53,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:23:53,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:23:53,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:53,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fe7e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53, skipping insertion in model container [2022-10-17 10:23:53,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:53,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:23:53,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:23:53,496 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2022-10-17 10:23:53,519 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2022-10-17 10:23:53,530 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2022-10-17 10:23:53,551 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2022-10-17 10:23:53,579 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2022-10-17 10:23:53,585 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2022-10-17 10:23:53,594 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2022-10-17 10:23:53,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:23:53,657 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:23:53,747 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2022-10-17 10:23:53,761 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2022-10-17 10:23:53,769 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2022-10-17 10:23:53,774 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2022-10-17 10:23:53,782 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2022-10-17 10:23:53,802 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2022-10-17 10:23:53,809 WARN L230 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_a0f590bc-6c73-4f39-8e5c-782e91a25408/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2022-10-17 10:23:53,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:23:53,887 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:23:53,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53 WrapperNode [2022-10-17 10:23:53,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:23:53,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:23:53,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:23:53,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:23:53,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:53,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:53,993 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 971 [2022-10-17 10:23:53,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:23:53,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:23:53,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:23:53,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:23:54,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:23:54,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:23:54,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:23:54,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:23:54,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (1/1) ... [2022-10-17 10:23:54,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:23:54,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:23:54,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:23:54,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f590bc-6c73-4f39-8e5c-782e91a25408/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:23:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:23:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:23:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:23:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:23:54,346 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:23:54,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:23:55,559 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:23:55,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:23:55,580 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:23:55,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:55 BoogieIcfgContainer [2022-10-17 10:23:55,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:23:55,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:23:55,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:23:55,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:23:55,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:23:53" (1/3) ... [2022-10-17 10:23:55,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf592a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:55, skipping insertion in model container [2022-10-17 10:23:55,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:53" (2/3) ... [2022-10-17 10:23:55,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf592a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:55, skipping insertion in model container [2022-10-17 10:23:55,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:55" (3/3) ... [2022-10-17 10:23:55,601 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-17 10:23:55,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:23:55,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-10-17 10:23:55,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:23:55,739 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;@77de704f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:23:55,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:23:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 205 states have internal predecessors, (361), 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) [2022-10-17 10:23:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:23:55,775 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:55,776 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] [2022-10-17 10:23:55,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:23:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:55,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1899747950, now seen corresponding path program 1 times [2022-10-17 10:23:55,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:55,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744860626] [2022-10-17 10:23:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:55,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:56,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:56,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744860626] [2022-10-17 10:23:56,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744860626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:56,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:56,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:23:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42322587] [2022-10-17 10:23:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:56,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:23:56,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:23:56,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:23:56,654 INFO L87 Difference]: Start difference. First operand has 206 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 205 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-10-17 10:23:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:56,994 INFO L93 Difference]: Finished difference Result 338 states and 568 transitions. [2022-10-17 10:23:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:23:56,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2022-10-17 10:23:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:57,015 INFO L225 Difference]: With dead ends: 338 [2022-10-17 10:23:57,015 INFO L226 Difference]: Without dead ends: 174 [2022-10-17 10:23:57,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:23:57,029 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 842 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:57,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 223 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:23:57,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-17 10:23:57,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-10-17 10:23:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 167 states have (on average 1.2934131736526946) internal successors, (216), 173 states have internal predecessors, (216), 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) [2022-10-17 10:23:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2022-10-17 10:23:57,146 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 46 [2022-10-17 10:23:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:57,148 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2022-10-17 10:23:57,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-10-17 10:23:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2022-10-17 10:23:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 10:23:57,158 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:57,158 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] [2022-10-17 10:23:57,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:23:57,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:23:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash -121525429, now seen corresponding path program 1 times [2022-10-17 10:23:57,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:57,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698690130] [2022-10-17 10:23:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:57,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:57,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:57,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698690130] [2022-10-17 10:23:57,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698690130] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:57,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:57,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:23:57,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527434986] [2022-10-17 10:23:57,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:57,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:23:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:57,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:23:57,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:23:57,370 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-10-17 10:23:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:57,539 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2022-10-17 10:23:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:23:57,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2022-10-17 10:23:57,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:57,542 INFO L225 Difference]: With dead ends: 297 [2022-10-17 10:23:57,555 INFO L226 Difference]: Without dead ends: 161 [2022-10-17 10:23:57,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:23:57,559 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 552 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:57,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 132 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-17 10:23:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-10-17 10:23:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 154 states have (on average 1.2987012987012987) internal successors, (200), 160 states have internal predecessors, (200), 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) [2022-10-17 10:23:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2022-10-17 10:23:57,596 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 47 [2022-10-17 10:23:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:57,598 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2022-10-17 10:23:57,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2022-10-17 10:23:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2022-10-17 10:23:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 10:23:57,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:57,604 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] [2022-10-17 10:23:57,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:23:57,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:23:57,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:57,612 INFO L85 PathProgramCache]: Analyzing trace with hash 414043727, now seen corresponding path program 1 times [2022-10-17 10:23:57,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:57,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166458495] [2022-10-17 10:23:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:57,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:57,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166458495] [2022-10-17 10:23:57,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166458495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:57,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:57,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:23:57,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116494175] [2022-10-17 10:23:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:57,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:23:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:57,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:23:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:23:57,808 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-10-17 10:23:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:57,986 INFO L93 Difference]: Finished difference Result 284 states and 361 transitions. [2022-10-17 10:23:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:23:57,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2022-10-17 10:23:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:57,990 INFO L225 Difference]: With dead ends: 284 [2022-10-17 10:23:57,991 INFO L226 Difference]: Without dead ends: 156 [2022-10-17 10:23:57,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:23:57,999 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 514 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:58,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 129 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:23:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-17 10:23:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-10-17 10:23:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 155 states have internal predecessors, (193), 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) [2022-10-17 10:23:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2022-10-17 10:23:58,042 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 48 [2022-10-17 10:23:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:58,043 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2022-10-17 10:23:58,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-10-17 10:23:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2022-10-17 10:23:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 10:23:58,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:58,049 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] [2022-10-17 10:23:58,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:23:58,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:23:58,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:58,051 INFO L85 PathProgramCache]: Analyzing trace with hash -453133940, now seen corresponding path program 1 times [2022-10-17 10:23:58,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:58,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933511340] [2022-10-17 10:23:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:58,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933511340] [2022-10-17 10:23:58,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933511340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:58,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:58,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:23:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851973493] [2022-10-17 10:23:58,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:58,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:23:58,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:58,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:23:58,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:23:58,499 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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) [2022-10-17 10:23:59,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:23:59,172 INFO L93 Difference]: Finished difference Result 331 states and 434 transitions. [2022-10-17 10:23:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:23:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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 49 [2022-10-17 10:23:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:23:59,179 INFO L225 Difference]: With dead ends: 331 [2022-10-17 10:23:59,179 INFO L226 Difference]: Without dead ends: 326 [2022-10-17 10:23:59,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:23:59,190 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1204 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:23:59,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 616 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:23:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-10-17 10:23:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 156. [2022-10-17 10:23:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 155 states have internal predecessors, (192), 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) [2022-10-17 10:23:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 192 transitions. [2022-10-17 10:23:59,243 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 192 transitions. Word has length 49 [2022-10-17 10:23:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:23:59,245 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 192 transitions. [2022-10-17 10:23:59,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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) [2022-10-17 10:23:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 192 transitions. [2022-10-17 10:23:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 10:23:59,247 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:59,248 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] [2022-10-17 10:23:59,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:23:59,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:23:59,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1459063162, now seen corresponding path program 1 times [2022-10-17 10:23:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:59,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297612233] [2022-10-17 10:23:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:23:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:23:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:23:59,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:23:59,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297612233] [2022-10-17 10:23:59,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297612233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:23:59,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:23:59,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:23:59,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979953230] [2022-10-17 10:23:59,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:23:59,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:23:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:23:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:23:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:23:59,719 INFO L87 Difference]: Start difference. First operand 156 states and 192 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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) [2022-10-17 10:24:00,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:00,473 INFO L93 Difference]: Finished difference Result 390 states and 518 transitions. [2022-10-17 10:24:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:24:00,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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 49 [2022-10-17 10:24:00,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:00,480 INFO L225 Difference]: With dead ends: 390 [2022-10-17 10:24:00,484 INFO L226 Difference]: Without dead ends: 330 [2022-10-17 10:24:00,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:24:00,486 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1041 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:00,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 826 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:00,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-10-17 10:24:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 156. [2022-10-17 10:24:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 155 states have internal predecessors, (191), 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) [2022-10-17 10:24:00,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2022-10-17 10:24:00,520 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 49 [2022-10-17 10:24:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:00,528 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2022-10-17 10:24:00,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 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) [2022-10-17 10:24:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2022-10-17 10:24:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 10:24:00,530 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:00,531 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] [2022-10-17 10:24:00,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:24:00,532 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:00,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash 8857914, now seen corresponding path program 1 times [2022-10-17 10:24:00,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:00,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267357124] [2022-10-17 10:24:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:00,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:00,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:00,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267357124] [2022-10-17 10:24:00,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267357124] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:00,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:00,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:00,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044909427] [2022-10-17 10:24:00,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:00,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:24:00,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:00,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:24:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:24:00,947 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2022-10-17 10:24:01,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:01,315 INFO L93 Difference]: Finished difference Result 311 states and 391 transitions. [2022-10-17 10:24:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:24:01,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2022-10-17 10:24:01,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:01,319 INFO L225 Difference]: With dead ends: 311 [2022-10-17 10:24:01,319 INFO L226 Difference]: Without dead ends: 228 [2022-10-17 10:24:01,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:24:01,321 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1011 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:01,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 310 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:24:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-10-17 10:24:01,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 156. [2022-10-17 10:24:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 155 states have internal predecessors, (190), 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) [2022-10-17 10:24:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2022-10-17 10:24:01,351 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 49 [2022-10-17 10:24:01,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:01,352 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2022-10-17 10:24:01,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2022-10-17 10:24:01,352 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2022-10-17 10:24:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:24:01,353 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:01,353 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] [2022-10-17 10:24:01,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:24:01,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1308237609, now seen corresponding path program 1 times [2022-10-17 10:24:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:01,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134105053] [2022-10-17 10:24:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:02,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:02,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134105053] [2022-10-17 10:24:02,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134105053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:02,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:02,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:24:02,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185094922] [2022-10-17 10:24:02,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:02,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:24:02,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:02,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:24:02,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:24:02,021 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2022-10-17 10:24:03,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:03,142 INFO L93 Difference]: Finished difference Result 434 states and 582 transitions. [2022-10-17 10:24:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:24:03,143 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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 51 [2022-10-17 10:24:03,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:03,146 INFO L225 Difference]: With dead ends: 434 [2022-10-17 10:24:03,147 INFO L226 Difference]: Without dead ends: 418 [2022-10-17 10:24:03,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-10-17 10:24:03,148 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 1232 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:03,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1768 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-10-17 10:24:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 140. [2022-10-17 10:24:03,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.2740740740740741) internal successors, (172), 139 states have internal predecessors, (172), 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) [2022-10-17 10:24:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 172 transitions. [2022-10-17 10:24:03,198 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 172 transitions. Word has length 51 [2022-10-17 10:24:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:03,199 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 172 transitions. [2022-10-17 10:24:03,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2022-10-17 10:24:03,199 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 172 transitions. [2022-10-17 10:24:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:24:03,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:03,200 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] [2022-10-17 10:24:03,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:24:03,201 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash 766441193, now seen corresponding path program 1 times [2022-10-17 10:24:03,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:03,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102921966] [2022-10-17 10:24:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:03,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:04,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:04,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102921966] [2022-10-17 10:24:04,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102921966] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:04,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:04,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-10-17 10:24:04,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949592000] [2022-10-17 10:24:04,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:04,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-17 10:24:04,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-17 10:24:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:24:04,426 INFO L87 Difference]: Start difference. First operand 140 states and 172 transitions. Second operand has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 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) [2022-10-17 10:24:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:06,972 INFO L93 Difference]: Finished difference Result 403 states and 524 transitions. [2022-10-17 10:24:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-17 10:24:06,973 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 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 51 [2022-10-17 10:24:06,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:06,978 INFO L225 Difference]: With dead ends: 403 [2022-10-17 10:24:06,978 INFO L226 Difference]: Without dead ends: 356 [2022-10-17 10:24:06,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-10-17 10:24:06,981 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1699 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:06,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 1940 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-17 10:24:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-10-17 10:24:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 146. [2022-10-17 10:24:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 141 states have (on average 1.2765957446808511) internal successors, (180), 145 states have internal predecessors, (180), 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) [2022-10-17 10:24:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 180 transitions. [2022-10-17 10:24:07,048 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 180 transitions. Word has length 51 [2022-10-17 10:24:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:07,050 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 180 transitions. [2022-10-17 10:24:07,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 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) [2022-10-17 10:24:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 180 transitions. [2022-10-17 10:24:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:24:07,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:07,051 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] [2022-10-17 10:24:07,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:24:07,052 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:07,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1014075955, now seen corresponding path program 1 times [2022-10-17 10:24:07,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:07,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914087515] [2022-10-17 10:24:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:07,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:07,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914087515] [2022-10-17 10:24:07,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914087515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:07,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:07,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:24:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709421014] [2022-10-17 10:24:07,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:07,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:24:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:24:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:24:07,841 INFO L87 Difference]: Start difference. First operand 146 states and 180 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2022-10-17 10:24:09,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:09,010 INFO L93 Difference]: Finished difference Result 351 states and 472 transitions. [2022-10-17 10:24:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:24:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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 51 [2022-10-17 10:24:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:09,013 INFO L225 Difference]: With dead ends: 351 [2022-10-17 10:24:09,013 INFO L226 Difference]: Without dead ends: 297 [2022-10-17 10:24:09,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:24:09,018 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1026 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:09,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1424 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-10-17 10:24:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 135. [2022-10-17 10:24:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.2748091603053435) internal successors, (167), 134 states have internal predecessors, (167), 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) [2022-10-17 10:24:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2022-10-17 10:24:09,071 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 167 transitions. Word has length 51 [2022-10-17 10:24:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:09,071 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-10-17 10:24:09,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2022-10-17 10:24:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 167 transitions. [2022-10-17 10:24:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:24:09,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:09,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:09,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:24:09,073 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1721906586, now seen corresponding path program 1 times [2022-10-17 10:24:09,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:09,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602126691] [2022-10-17 10:24:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:09,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:09,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602126691] [2022-10-17 10:24:09,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602126691] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:09,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:09,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:24:09,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301484297] [2022-10-17 10:24:09,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:09,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:24:09,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:09,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:24:09,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:24:09,387 INFO L87 Difference]: Start difference. First operand 135 states and 167 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-10-17 10:24:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:10,079 INFO L93 Difference]: Finished difference Result 354 states and 476 transitions. [2022-10-17 10:24:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:24:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2022-10-17 10:24:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:10,082 INFO L225 Difference]: With dead ends: 354 [2022-10-17 10:24:10,083 INFO L226 Difference]: Without dead ends: 293 [2022-10-17 10:24:10,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:24:10,084 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 541 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:10,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 650 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-10-17 10:24:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 135. [2022-10-17 10:24:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.2671755725190839) internal successors, (166), 134 states have internal predecessors, (166), 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) [2022-10-17 10:24:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 166 transitions. [2022-10-17 10:24:10,136 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 166 transitions. Word has length 52 [2022-10-17 10:24:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 166 transitions. [2022-10-17 10:24:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-10-17 10:24:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 166 transitions. [2022-10-17 10:24:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:24:10,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:10,139 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] [2022-10-17 10:24:10,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:24:10,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:10,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1294616090, now seen corresponding path program 1 times [2022-10-17 10:24:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:10,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008636337] [2022-10-17 10:24:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:10,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:10,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008636337] [2022-10-17 10:24:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008636337] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:10,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:24:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894892483] [2022-10-17 10:24:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:10,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:24:10,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:10,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:24:10,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:24:10,453 INFO L87 Difference]: Start difference. First operand 135 states and 166 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-10-17 10:24:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:11,125 INFO L93 Difference]: Finished difference Result 302 states and 396 transitions. [2022-10-17 10:24:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:24:11,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2022-10-17 10:24:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:11,129 INFO L225 Difference]: With dead ends: 302 [2022-10-17 10:24:11,129 INFO L226 Difference]: Without dead ends: 295 [2022-10-17 10:24:11,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:24:11,131 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 865 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:11,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 512 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-17 10:24:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 135. [2022-10-17 10:24:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.251908396946565) internal successors, (164), 134 states have internal predecessors, (164), 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) [2022-10-17 10:24:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2022-10-17 10:24:11,182 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 52 [2022-10-17 10:24:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:11,182 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2022-10-17 10:24:11,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-10-17 10:24:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2022-10-17 10:24:11,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:24:11,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:11,184 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] [2022-10-17 10:24:11,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:24:11,185 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1671010270, now seen corresponding path program 1 times [2022-10-17 10:24:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245526464] [2022-10-17 10:24:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:11,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:12,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:12,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245526464] [2022-10-17 10:24:12,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245526464] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:12,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:12,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-10-17 10:24:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397322510] [2022-10-17 10:24:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:12,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-17 10:24:12,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 10:24:12,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:24:12,257 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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) [2022-10-17 10:24:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:14,361 INFO L93 Difference]: Finished difference Result 324 states and 419 transitions. [2022-10-17 10:24:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-17 10:24:14,362 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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 52 [2022-10-17 10:24:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:14,364 INFO L225 Difference]: With dead ends: 324 [2022-10-17 10:24:14,364 INFO L226 Difference]: Without dead ends: 277 [2022-10-17 10:24:14,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2022-10-17 10:24:14,366 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 563 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:14,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 2864 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-17 10:24:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-17 10:24:14,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 125. [2022-10-17 10:24:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 122 states have (on average 1.2459016393442623) internal successors, (152), 124 states have internal predecessors, (152), 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) [2022-10-17 10:24:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-10-17 10:24:14,419 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 52 [2022-10-17 10:24:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:14,420 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-10-17 10:24:14,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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) [2022-10-17 10:24:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-10-17 10:24:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:24:14,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:14,421 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] [2022-10-17 10:24:14,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:24:14,422 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:14,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1899159370, now seen corresponding path program 1 times [2022-10-17 10:24:14,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:14,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657382785] [2022-10-17 10:24:14,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:14,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:15,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657382785] [2022-10-17 10:24:15,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657382785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:15,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:15,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-10-17 10:24:15,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292558405] [2022-10-17 10:24:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:15,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-17 10:24:15,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:15,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:24:15,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:24:15,306 INFO L87 Difference]: Start difference. First operand 125 states and 152 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 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) [2022-10-17 10:24:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:17,401 INFO L93 Difference]: Finished difference Result 439 states and 577 transitions. [2022-10-17 10:24:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-17 10:24:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 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 54 [2022-10-17 10:24:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:17,407 INFO L225 Difference]: With dead ends: 439 [2022-10-17 10:24:17,407 INFO L226 Difference]: Without dead ends: 433 [2022-10-17 10:24:17,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:24:17,409 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1154 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:17,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 3196 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-17 10:24:17,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-10-17 10:24:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 136. [2022-10-17 10:24:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 133 states have (on average 1.2481203007518797) internal successors, (166), 135 states have internal predecessors, (166), 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) [2022-10-17 10:24:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2022-10-17 10:24:17,472 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 54 [2022-10-17 10:24:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:17,473 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2022-10-17 10:24:17,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 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) [2022-10-17 10:24:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2022-10-17 10:24:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:24:17,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:17,474 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] [2022-10-17 10:24:17,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 10:24:17,475 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-10-17 10:24:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1464456906, now seen corresponding path program 1 times [2022-10-17 10:24:17,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:17,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971504249] [2022-10-17 10:24:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:17,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:18,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:18,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:18,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971504249] [2022-10-17 10:24:18,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971504249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:18,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:18,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-10-17 10:24:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363673430] [2022-10-17 10:24:18,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:18,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-17 10:24:18,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:18,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:24:18,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:24:18,447 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 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)