./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 06a966cd103a9c61c8e9ebcc5255a2d5a7d1dd56b172674853cec63a372f0a43 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:56:18,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:56:18,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:56:18,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:56:18,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:56:18,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:56:18,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:56:18,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:56:18,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:56:18,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:56:18,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:56:18,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:56:18,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:56:18,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:56:18,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:56:18,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:56:18,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:56:18,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:56:18,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:56:18,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:56:18,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:56:18,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:56:18,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:56:18,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:56:18,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:56:18,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:56:18,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:56:18,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:56:18,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:56:18,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:56:18,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:56:18,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:56:18,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:56:18,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:56:18,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:56:18,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:56:18,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:56:19,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:56:19,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:56:19,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:56:19,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:56:19,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:56:19,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:56:19,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:56:19,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:56:19,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:56:19,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:56:19,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:56:19,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:56:19,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:56:19,051 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:56:19,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:56:19,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:56:19,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:56:19,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:56:19,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:56:19,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:56:19,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:56:19,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:56:19,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:56:19,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:56:19,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:56:19,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:56:19,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:56:19,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:56:19,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:56:19,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:56:19,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:56:19,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:56:19,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:56:19,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:56:19,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:56:19,058 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:56:19,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:56:19,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:56:19,058 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_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06a966cd103a9c61c8e9ebcc5255a2d5a7d1dd56b172674853cec63a372f0a43 [2022-11-18 20:56:19,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:56:19,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:56:19,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:56:19,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:56:19,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:56:19,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c [2022-11-18 20:56:19,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/data/3e99aaf93/1976d1ae94764d939efe6a6cdffffed7/FLAG9d46a40b9 [2022-11-18 20:56:20,562 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:56:20,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c [2022-11-18 20:56:20,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/data/3e99aaf93/1976d1ae94764d939efe6a6cdffffed7/FLAG9d46a40b9 [2022-11-18 20:56:20,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/data/3e99aaf93/1976d1ae94764d939efe6a6cdffffed7 [2022-11-18 20:56:20,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:56:20,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:56:20,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:20,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:56:20,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:56:20,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:20" (1/1) ... [2022-11-18 20:56:20,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274737ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:20, skipping insertion in model container [2022-11-18 20:56:20,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:20" (1/1) ... [2022-11-18 20:56:20,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:56:21,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:56:23,467 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c[375709,375722] [2022-11-18 20:56:23,502 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c[383339,383352] [2022-11-18 20:56:23,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:23,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:56:24,925 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c[375709,375722] [2022-11-18 20:56:24,936 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/sv-benchmarks/c/combinations/Problem05_label48+token_ring.08.cil-1.c[383339,383352] [2022-11-18 20:56:24,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:25,068 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:56:25,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25 WrapperNode [2022-11-18 20:56:25,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:25,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:25,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:56:25,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:56:25,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,664 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12967 [2022-11-18 20:56:25,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:25,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:56:25,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:56:25,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:56:25,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:56:26,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:56:26,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:56:26,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:56:26,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:26,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:56:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:26,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:56:26,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788fc20b-ac1d-4dd3-a6a4-7d803f165dd3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:56:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:56:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 20:56:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 20:56:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 20:56:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 20:56:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 20:56:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 20:56:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 20:56:26,533 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 20:56:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 20:56:26,533 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 20:56:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 20:56:26,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 20:56:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:56:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:56:26,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:56:26,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:56:26,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:56:36,186 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:56:36,220 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:56:36,220 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-18 20:56:36,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:36 BoogieIcfgContainer [2022-11-18 20:56:36,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:56:36,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:56:36,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:56:36,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:56:36,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:56:20" (1/3) ... [2022-11-18 20:56:36,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52781fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:36, skipping insertion in model container [2022-11-18 20:56:36,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (2/3) ... [2022-11-18 20:56:36,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52781fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:36, skipping insertion in model container [2022-11-18 20:56:36,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:36" (3/3) ... [2022-11-18 20:56:36,239 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.08.cil-1.c [2022-11-18 20:56:36,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:56:36,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:56:36,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:56:36,381 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;@56271dab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:56:36,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:56:36,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-18 20:56:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:36,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:36,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:36,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:36,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1316356206, now seen corresponding path program 1 times [2022-11-18 20:56:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:36,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418274403] [2022-11-18 20:56:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:37,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:37,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418274403] [2022-11-18 20:56:37,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418274403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:37,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:37,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:56:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620627981] [2022-11-18 20:56:37,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:37,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:56:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:56:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:56:37,113 INFO L87 Difference]: Start difference. First operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:39,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:39,164 INFO L93 Difference]: Finished difference Result 5022 states and 9244 transitions. [2022-11-18 20:56:39,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:56:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:39,214 INFO L225 Difference]: With dead ends: 5022 [2022-11-18 20:56:39,214 INFO L226 Difference]: Without dead ends: 2496 [2022-11-18 20:56:39,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:56:39,234 INFO L413 NwaCegarLoop]: 4282 mSDtfsCounter, 738 mSDsluCounter, 12361 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 16643 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:39,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 16643 Invalid, 776 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [48 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:56:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-11-18 20:56:39,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2398. [2022-11-18 20:56:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2368 states have (on average 1.8344594594594594) internal successors, (4344), 2370 states have internal predecessors, (4344), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-18 20:56:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4388 transitions. [2022-11-18 20:56:39,397 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4388 transitions. Word has length 134 [2022-11-18 20:56:39,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:39,397 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4388 transitions. [2022-11-18 20:56:39,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4388 transitions. [2022-11-18 20:56:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:39,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:39,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:39,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:56:39,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2022952812, now seen corresponding path program 1 times [2022-11-18 20:56:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:39,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282747890] [2022-11-18 20:56:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:39,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282747890] [2022-11-18 20:56:39,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282747890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:39,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:39,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:56:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000812643] [2022-11-18 20:56:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:39,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:56:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:56:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:56:39,726 INFO L87 Difference]: Start difference. First operand 2398 states and 4388 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:42,517 INFO L93 Difference]: Finished difference Result 3126 states and 5555 transitions. [2022-11-18 20:56:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:56:42,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:42,531 INFO L225 Difference]: With dead ends: 3126 [2022-11-18 20:56:42,531 INFO L226 Difference]: Without dead ends: 2865 [2022-11-18 20:56:42,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:56:42,536 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 5058 mSDsluCounter, 12566 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 16784 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:42,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 16784 Invalid, 1771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 20:56:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-11-18 20:56:42,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2670. [2022-11-18 20:56:42,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2616 states have (on average 1.8103975535168195) internal successors, (4736), 2619 states have internal predecessors, (4736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-18 20:56:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 4817 transitions. [2022-11-18 20:56:42,660 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 4817 transitions. Word has length 134 [2022-11-18 20:56:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:42,661 INFO L495 AbstractCegarLoop]: Abstraction has 2670 states and 4817 transitions. [2022-11-18 20:56:42,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 4817 transitions. [2022-11-18 20:56:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:42,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:42,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:42,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:56:42,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 316449264, now seen corresponding path program 1 times [2022-11-18 20:56:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907508092] [2022-11-18 20:56:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:42,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:43,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:43,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907508092] [2022-11-18 20:56:43,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907508092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:43,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:43,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:56:43,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880023518] [2022-11-18 20:56:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:43,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:56:43,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:56:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:56:43,121 INFO L87 Difference]: Start difference. First operand 2670 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:46,851 INFO L93 Difference]: Finished difference Result 3779 states and 6593 transitions. [2022-11-18 20:56:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:56:46,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:46,875 INFO L225 Difference]: With dead ends: 3779 [2022-11-18 20:56:46,875 INFO L226 Difference]: Without dead ends: 3246 [2022-11-18 20:56:46,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:56:46,881 INFO L413 NwaCegarLoop]: 4365 mSDtfsCounter, 5077 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5092 SdHoareTripleChecker+Valid, 21557 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:46,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5092 Valid, 21557 Invalid, 2586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 20:56:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-11-18 20:56:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2923. [2022-11-18 20:56:47,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2845 states have (on average 1.789103690685413) internal successors, (5090), 2849 states have internal predecessors, (5090), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-11-18 20:56:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5207 transitions. [2022-11-18 20:56:47,097 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5207 transitions. Word has length 134 [2022-11-18 20:56:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:47,098 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5207 transitions. [2022-11-18 20:56:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5207 transitions. [2022-11-18 20:56:47,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:47,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:47,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:47,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:56:47,102 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1976631762, now seen corresponding path program 1 times [2022-11-18 20:56:47,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:47,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3662131] [2022-11-18 20:56:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:47,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:47,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3662131] [2022-11-18 20:56:47,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3662131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:47,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:47,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:56:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486667723] [2022-11-18 20:56:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:47,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:56:47,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:47,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:56:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:56:47,469 INFO L87 Difference]: Start difference. First operand 2923 states and 5207 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:50,727 INFO L93 Difference]: Finished difference Result 4741 states and 8111 transitions. [2022-11-18 20:56:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:56:50,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:50,749 INFO L225 Difference]: With dead ends: 4741 [2022-11-18 20:56:50,749 INFO L226 Difference]: Without dead ends: 3955 [2022-11-18 20:56:50,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:56:50,766 INFO L413 NwaCegarLoop]: 4223 mSDtfsCounter, 5157 mSDsluCounter, 16738 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 20961 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:50,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 20961 Invalid, 2329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 20:56:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-11-18 20:56:50,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3430. [2022-11-18 20:56:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3304 states have (on average 1.7551452784503632) internal successors, (5799), 3310 states have internal predecessors, (5799), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-11-18 20:56:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5992 transitions. [2022-11-18 20:56:51,025 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5992 transitions. Word has length 134 [2022-11-18 20:56:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:51,027 INFO L495 AbstractCegarLoop]: Abstraction has 3430 states and 5992 transitions. [2022-11-18 20:56:51,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5992 transitions. [2022-11-18 20:56:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:51,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:51,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:51,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:56:51,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:51,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:51,046 INFO L85 PathProgramCache]: Analyzing trace with hash -249486800, now seen corresponding path program 1 times [2022-11-18 20:56:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:51,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734838091] [2022-11-18 20:56:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:51,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:51,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734838091] [2022-11-18 20:56:51,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734838091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:51,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:51,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:56:51,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370269496] [2022-11-18 20:56:51,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:51,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:56:51,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:51,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:56:51,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:56:51,351 INFO L87 Difference]: Start difference. First operand 3430 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:54,890 INFO L93 Difference]: Finished difference Result 6592 states and 11016 transitions. [2022-11-18 20:56:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:56:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:54,914 INFO L225 Difference]: With dead ends: 6592 [2022-11-18 20:56:54,914 INFO L226 Difference]: Without dead ends: 5299 [2022-11-18 20:56:54,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:56:54,922 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5075 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:54,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 21555 Invalid, 2577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:56:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2022-11-18 20:56:55,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 4445. [2022-11-18 20:56:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4223 states have (on average 1.7089746625621596) internal successors, (7217), 4233 states have internal predecessors, (7217), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-11-18 20:56:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 7568 transitions. [2022-11-18 20:56:55,232 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 7568 transitions. Word has length 134 [2022-11-18 20:56:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:55,232 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 7568 transitions. [2022-11-18 20:56:55,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 7568 transitions. [2022-11-18 20:56:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:56:55,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:55,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:56:55,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:56:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash 221869550, now seen corresponding path program 1 times [2022-11-18 20:56:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:55,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254424740] [2022-11-18 20:56:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:55,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:56:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:56:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:56:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:56:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:56:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:55,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:55,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254424740] [2022-11-18 20:56:55,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254424740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:55,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:55,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:56:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241710158] [2022-11-18 20:56:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:55,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:56:55,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:55,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:56:55,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:56:55,478 INFO L87 Difference]: Start difference. First operand 4445 states and 7568 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:56:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:59,395 INFO L93 Difference]: Finished difference Result 10286 states and 16830 transitions. [2022-11-18 20:56:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:56:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:56:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:59,434 INFO L225 Difference]: With dead ends: 10286 [2022-11-18 20:56:59,434 INFO L226 Difference]: Without dead ends: 7978 [2022-11-18 20:56:59,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:56:59,446 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5071 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:59,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 21555 Invalid, 2549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:56:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2022-11-18 20:57:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 6489. [2022-11-18 20:57:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6075 states have (on average 1.6587654320987655) internal successors, (10077), 6093 states have internal predecessors, (10077), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-11-18 20:57:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 10762 transitions. [2022-11-18 20:57:00,286 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 10762 transitions. Word has length 134 [2022-11-18 20:57:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:57:00,286 INFO L495 AbstractCegarLoop]: Abstraction has 6489 states and 10762 transitions. [2022-11-18 20:57:00,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 10762 transitions. [2022-11-18 20:57:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:57:00,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:57:00,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:00,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:57:00,295 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:57:00,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1909481172, now seen corresponding path program 1 times [2022-11-18 20:57:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:00,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814036188] [2022-11-18 20:57:00,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:00,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:57:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:57:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:57:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:57:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:57:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:57:00,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:00,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814036188] [2022-11-18 20:57:00,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814036188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:00,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:00,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:57:00,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926871534] [2022-11-18 20:57:00,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:00,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:57:00,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:57:00,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:57:00,617 INFO L87 Difference]: Start difference. First operand 6489 states and 10762 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:57:04,981 INFO L93 Difference]: Finished difference Result 17692 states and 28550 transitions. [2022-11-18 20:57:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:57:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:57:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:57:05,036 INFO L225 Difference]: With dead ends: 17692 [2022-11-18 20:57:05,036 INFO L226 Difference]: Without dead ends: 13340 [2022-11-18 20:57:05,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:57:05,055 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5070 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5085 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:57:05,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5085 Valid, 21555 Invalid, 2536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 20:57:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2022-11-18 20:57:06,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 10590. [2022-11-18 20:57:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.615093954248366) internal successors, (15815), 9826 states have internal predecessors, (15815), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-11-18 20:57:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17222 transitions. [2022-11-18 20:57:06,091 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17222 transitions. Word has length 134 [2022-11-18 20:57:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:57:06,091 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17222 transitions. [2022-11-18 20:57:06,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17222 transitions. [2022-11-18 20:57:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:57:06,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:57:06,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:06,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:57:06,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:57:06,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1346901550, now seen corresponding path program 1 times [2022-11-18 20:57:06,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:06,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292188467] [2022-11-18 20:57:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:06,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:57:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:57:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:57:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:57:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:57:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:57:06,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:06,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292188467] [2022-11-18 20:57:06,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292188467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:06,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:06,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:57:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571090853] [2022-11-18 20:57:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:06,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:57:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:57:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:57:06,335 INFO L87 Difference]: Start difference. First operand 10590 states and 17222 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:57:09,699 INFO L93 Difference]: Finished difference Result 21934 states and 35495 transitions. [2022-11-18 20:57:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:57:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:57:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:57:09,748 INFO L225 Difference]: With dead ends: 21934 [2022-11-18 20:57:09,748 INFO L226 Difference]: Without dead ends: 13481 [2022-11-18 20:57:09,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:57:09,778 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4771 mSDsluCounter, 16507 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 20683 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:57:09,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 20683 Invalid, 1316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:57:09,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13481 states. [2022-11-18 20:57:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13481 to 10590. [2022-11-18 20:57:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.6117238562091503) internal successors, (15782), 9826 states have internal predecessors, (15782), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-11-18 20:57:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17189 transitions. [2022-11-18 20:57:10,770 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17189 transitions. Word has length 134 [2022-11-18 20:57:10,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:57:10,770 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17189 transitions. [2022-11-18 20:57:10,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17189 transitions. [2022-11-18 20:57:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:57:10,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:57:10,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:10,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:57:10,781 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:57:10,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash -626263828, now seen corresponding path program 1 times [2022-11-18 20:57:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:10,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514351380] [2022-11-18 20:57:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:57:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:57:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:57:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:57:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:11,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:57:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:57:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:11,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514351380] [2022-11-18 20:57:11,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514351380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:11,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:11,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:57:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637954102] [2022-11-18 20:57:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:11,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:57:11,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:11,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:57:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:57:11,054 INFO L87 Difference]: Start difference. First operand 10590 states and 17189 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:57:16,807 INFO L93 Difference]: Finished difference Result 32469 states and 51948 transitions. [2022-11-18 20:57:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:57:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:57:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:57:16,893 INFO L225 Difference]: With dead ends: 32469 [2022-11-18 20:57:16,893 INFO L226 Difference]: Without dead ends: 24016 [2022-11-18 20:57:16,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:57:16,925 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5062 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5077 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:57:16,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5077 Valid, 21555 Invalid, 2498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 20:57:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24016 states. [2022-11-18 20:57:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24016 to 18856. [2022-11-18 20:57:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 17290 states have (on average 1.5792943898207057) internal successors, (27306), 17356 states have internal predecessors, (27306), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-11-18 20:57:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 30319 transitions. [2022-11-18 20:57:18,803 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 30319 transitions. Word has length 134 [2022-11-18 20:57:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:57:18,803 INFO L495 AbstractCegarLoop]: Abstraction has 18856 states and 30319 transitions. [2022-11-18 20:57:18,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 30319 transitions. [2022-11-18 20:57:18,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:57:18,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:57:18,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:18,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:57:18,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:57:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:18,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1526842990, now seen corresponding path program 1 times [2022-11-18 20:57:18,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:18,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986419281] [2022-11-18 20:57:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:57:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:57:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:19,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:57:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:57:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:57:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:57:19,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:19,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986419281] [2022-11-18 20:57:19,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986419281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:19,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:19,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:57:19,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881203227] [2022-11-18 20:57:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:19,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:57:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:57:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:57:19,038 INFO L87 Difference]: Start difference. First operand 18856 states and 30319 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:57:29,298 INFO L93 Difference]: Finished difference Result 69837 states and 111398 transitions. [2022-11-18 20:57:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:57:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:57:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:57:29,512 INFO L225 Difference]: With dead ends: 69837 [2022-11-18 20:57:29,513 INFO L226 Difference]: Without dead ends: 53118 [2022-11-18 20:57:29,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:57:29,566 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 5391 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:57:29,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5415 Valid, 21545 Invalid, 2483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 20:57:29,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53118 states. [2022-11-18 20:57:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53118 to 35257. [2022-11-18 20:57:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35257 states, 32219 states have (on average 1.5616872032030789) internal successors, (50316), 32349 states have internal predecessors, (50316), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2022-11-18 20:57:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35257 states to 35257 states and 56899 transitions. [2022-11-18 20:57:33,948 INFO L78 Accepts]: Start accepts. Automaton has 35257 states and 56899 transitions. Word has length 134 [2022-11-18 20:57:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:57:33,948 INFO L495 AbstractCegarLoop]: Abstraction has 35257 states and 56899 transitions. [2022-11-18 20:57:33,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 35257 states and 56899 transitions. [2022-11-18 20:57:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:57:33,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:57:33,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:57:33,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:57:33,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:57:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:57:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash 903561388, now seen corresponding path program 1 times [2022-11-18 20:57:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:57:33,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113379099] [2022-11-18 20:57:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:57:33,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:57:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:57:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:57:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:57:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:57:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:57:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:57:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:57:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:57:34,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113379099] [2022-11-18 20:57:34,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113379099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:57:34,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:57:34,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:57:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721714667] [2022-11-18 20:57:34,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:57:34,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:57:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:57:34,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:57:34,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:57:34,197 INFO L87 Difference]: Start difference. First operand 35257 states and 56899 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:57:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:57:54,424 INFO L93 Difference]: Finished difference Result 134716 states and 217164 transitions. [2022-11-18 20:57:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:57:54,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-11-18 20:57:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:57:54,874 INFO L225 Difference]: With dead ends: 134716 [2022-11-18 20:57:54,874 INFO L226 Difference]: Without dead ends: 101596 [2022-11-18 20:57:54,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:57:54,995 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 5200 mSDsluCounter, 16758 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:57:54,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 20989 Invalid, 2756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 20:57:55,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101596 states.