./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8 --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 79d6d14ab0026435a30858ddf19b47e14c18490c6f54007e738f20f9faaa8cb9 --- 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-2329fc7 [2022-12-13 15:22:21,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:22:21,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:22:21,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:22:21,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:22:21,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:22:21,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:22:21,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:22:21,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:22:21,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:22:21,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:22:21,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:22:21,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:22:21,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:22:21,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:22:21,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:22:21,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:22:21,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:22:21,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:22:21,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:22:21,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:22:21,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:22:21,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:22:21,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:22:21,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:22:21,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:22:21,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:22:21,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:22:21,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:22:21,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:22:21,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:22:21,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:22:21,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:22:21,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:22:21,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:22:21,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:22:21,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:22:21,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:22:21,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:22:21,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:22:21,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:22:21,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:22:21,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:22:21,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:22:21,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:22:21,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:22:21,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:22:21,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:22:21,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:22:21,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:22:21,363 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:22:21,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:22:21,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:22:21,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:22:21,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:22:21,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:22:21,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:22:21,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:22:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:22:21,366 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d6d14ab0026435a30858ddf19b47e14c18490c6f54007e738f20f9faaa8cb9 [2022-12-13 15:22:21,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:22:21,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:22:21,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:22:21,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:22:21,575 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:22:21,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2022-12-13 15:22:24,155 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:22:24,460 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:22:24,460 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2022-12-13 15:22:24,481 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/data/c89b6f7ce/f5dddc0ddc5544f5b8342c5da752aa99/FLAG1203fd1d3 [2022-12-13 15:22:24,492 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/data/c89b6f7ce/f5dddc0ddc5544f5b8342c5da752aa99 [2022-12-13 15:22:24,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:22:24,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:22:24,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:22:24,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:22:24,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:22:24,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:22:24" (1/1) ... [2022-12-13 15:22:24,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c501c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:24, skipping insertion in model container [2022-12-13 15:22:24,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:22:24" (1/1) ... [2022-12-13 15:22:24,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:22:24,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:22:24,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c[11705,11718] [2022-12-13 15:22:24,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c[17260,17273] [2022-12-13 15:22:25,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:22:25,547 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:22:25,567 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c[11705,11718] [2022-12-13 15:22:25,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c[17260,17273] [2022-12-13 15:22:25,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:22:25,963 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:22:25,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25 WrapperNode [2022-12-13 15:22:25,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:22:25,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:22:25,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:22:25,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:22:25,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,232 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5069 [2022-12-13 15:22:26,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:22:26,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:22:26,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:22:26,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:22:26,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:22:26,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:22:26,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:22:26,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:22:26,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (1/1) ... [2022-12-13 15:22:26,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:22:26,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:22:26,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:22:26,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:22:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:22:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:22:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:22:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:22:26,660 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:22:26,662 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:22:30,210 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:22:30,225 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:22:30,225 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:22:30,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:22:30 BoogieIcfgContainer [2022-12-13 15:22:30,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:22:30,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:22:30,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:22:30,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:22:30,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:22:24" (1/3) ... [2022-12-13 15:22:30,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e5ff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:22:30, skipping insertion in model container [2022-12-13 15:22:30,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:22:25" (2/3) ... [2022-12-13 15:22:30,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e5ff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:22:30, skipping insertion in model container [2022-12-13 15:22:30,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:22:30" (3/3) ... [2022-12-13 15:22:30,236 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2022-12-13 15:22:30,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:22:30,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:22:30,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:22:30,333 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;@5fbd4715, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:22:30,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:22:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 15:22:30,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:30,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:30,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:30,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2022-12-13 15:22:30,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:30,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129121161] [2022-12-13 15:22:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:30,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:30,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129121161] [2022-12-13 15:22:30,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129121161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:30,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:30,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:22:30,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170693785] [2022-12-13 15:22:30,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:30,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:22:30,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:30,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:22:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:22:30,599 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:30,659 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2022-12-13 15:22:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:22:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-13 15:22:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:30,672 INFO L225 Difference]: With dead ends: 1763 [2022-12-13 15:22:30,672 INFO L226 Difference]: Without dead ends: 835 [2022-12-13 15:22:30,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:22:30,678 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:30,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:30,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2022-12-13 15:22:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2022-12-13 15:22:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2022-12-13 15:22:30,732 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2022-12-13 15:22:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:30,732 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2022-12-13 15:22:30,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2022-12-13 15:22:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 15:22:30,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:30,733 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] [2022-12-13 15:22:30,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:22:30,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2022-12-13 15:22:30,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:30,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720684823] [2022-12-13 15:22:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:30,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:30,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720684823] [2022-12-13 15:22:30,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720684823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:30,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:30,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:22:30,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010178237] [2022-12-13 15:22:30,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:30,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:22:30,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:30,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:22:30,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:22:30,854 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:30,957 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2022-12-13 15:22:30,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:22:30,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-13 15:22:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:30,960 INFO L225 Difference]: With dead ends: 883 [2022-12-13 15:22:30,960 INFO L226 Difference]: Without dead ends: 835 [2022-12-13 15:22:30,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:30,962 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 3 mSDsluCounter, 4691 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:30,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6266 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2022-12-13 15:22:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2022-12-13 15:22:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2022-12-13 15:22:30,981 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2022-12-13 15:22:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:30,981 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2022-12-13 15:22:30,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2022-12-13 15:22:30,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 15:22:30,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:30,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:30,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:22:30,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:30,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash 130997, now seen corresponding path program 1 times [2022-12-13 15:22:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:30,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216065892] [2022-12-13 15:22:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:30,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:31,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216065892] [2022-12-13 15:22:31,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216065892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:31,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:31,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:22:31,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947878309] [2022-12-13 15:22:31,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:31,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:31,051 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:33,977 INFO L93 Difference]: Finished difference Result 2339 states and 4419 transitions. [2022-12-13 15:22:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:33,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-12-13 15:22:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:33,981 INFO L225 Difference]: With dead ends: 2339 [2022-12-13 15:22:33,981 INFO L226 Difference]: Without dead ends: 1586 [2022-12-13 15:22:33,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:33,983 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 877 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:33,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 535 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 15:22:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-12-13 15:22:34,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2022-12-13 15:22:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1584 states have (on average 1.6243686868686869) internal successors, (2573), 1585 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2573 transitions. [2022-12-13 15:22:34,005 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2573 transitions. Word has length 48 [2022-12-13 15:22:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:34,005 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2573 transitions. [2022-12-13 15:22:34,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2573 transitions. [2022-12-13 15:22:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 15:22:34,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:34,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:34,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:22:34,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:34,007 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2022-12-13 15:22:34,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:34,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98958649] [2022-12-13 15:22:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:34,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:34,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:34,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98958649] [2022-12-13 15:22:34,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98958649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:34,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:34,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168081355] [2022-12-13 15:22:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:34,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:34,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:34,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:34,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:34,111 INFO L87 Difference]: Start difference. First operand 1586 states and 2573 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:34,349 INFO L93 Difference]: Finished difference Result 2026 states and 3273 transitions. [2022-12-13 15:22:34,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:22:34,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-12-13 15:22:34,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:34,354 INFO L225 Difference]: With dead ends: 2026 [2022-12-13 15:22:34,354 INFO L226 Difference]: Without dead ends: 1982 [2022-12-13 15:22:34,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:22:34,355 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:34,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:34,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2022-12-13 15:22:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1628. [2022-12-13 15:22:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1626 states have (on average 1.6236162361623616) internal successors, (2640), 1627 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2640 transitions. [2022-12-13 15:22:34,382 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2640 transitions. Word has length 54 [2022-12-13 15:22:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:34,382 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2640 transitions. [2022-12-13 15:22:34,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2640 transitions. [2022-12-13 15:22:34,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 15:22:34,383 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:34,383 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] [2022-12-13 15:22:34,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:22:34,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:34,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2022-12-13 15:22:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:34,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822593086] [2022-12-13 15:22:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:34,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:34,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822593086] [2022-12-13 15:22:34,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822593086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:34,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:34,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:34,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338592357] [2022-12-13 15:22:34,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:34,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:34,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:34,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:34,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:34,434 INFO L87 Difference]: Start difference. First operand 1628 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:34,476 INFO L93 Difference]: Finished difference Result 1789 states and 2895 transitions. [2022-12-13 15:22:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:34,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-12-13 15:22:34,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:34,483 INFO L225 Difference]: With dead ends: 1789 [2022-12-13 15:22:34,483 INFO L226 Difference]: Without dead ends: 1703 [2022-12-13 15:22:34,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:34,485 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:34,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:34,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-12-13 15:22:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1699. [2022-12-13 15:22:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.6205067766647023) internal successors, (2750), 1698 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2750 transitions. [2022-12-13 15:22:34,529 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2750 transitions. Word has length 56 [2022-12-13 15:22:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:34,529 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2750 transitions. [2022-12-13 15:22:34,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2750 transitions. [2022-12-13 15:22:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 15:22:34,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:34,530 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] [2022-12-13 15:22:34,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:22:34,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2022-12-13 15:22:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:34,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512078797] [2022-12-13 15:22:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:34,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:34,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:34,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512078797] [2022-12-13 15:22:34,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512078797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:34,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:34,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:34,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834009621] [2022-12-13 15:22:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:34,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:34,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:34,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:34,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:34,713 INFO L87 Difference]: Start difference. First operand 1699 states and 2750 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:34,865 INFO L93 Difference]: Finished difference Result 1858 states and 2998 transitions. [2022-12-13 15:22:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:34,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-12-13 15:22:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:34,872 INFO L225 Difference]: With dead ends: 1858 [2022-12-13 15:22:34,872 INFO L226 Difference]: Without dead ends: 1701 [2022-12-13 15:22:34,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:22:34,874 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:34,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1807 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2022-12-13 15:22:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1699. [2022-12-13 15:22:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.6193282262816735) internal successors, (2748), 1698 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2748 transitions. [2022-12-13 15:22:34,918 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2748 transitions. Word has length 56 [2022-12-13 15:22:34,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:34,918 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2748 transitions. [2022-12-13 15:22:34,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:34,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2748 transitions. [2022-12-13 15:22:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 15:22:34,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:34,920 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] [2022-12-13 15:22:34,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:22:34,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2022-12-13 15:22:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:34,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569707930] [2022-12-13 15:22:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:34,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:35,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569707930] [2022-12-13 15:22:35,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569707930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:35,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:35,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:22:35,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720797051] [2022-12-13 15:22:35,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:35,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:22:35,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:22:35,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:22:35,092 INFO L87 Difference]: Start difference. First operand 1699 states and 2748 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:35,227 INFO L93 Difference]: Finished difference Result 1852 states and 2982 transitions. [2022-12-13 15:22:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:22:35,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-12-13 15:22:35,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:35,234 INFO L225 Difference]: With dead ends: 1852 [2022-12-13 15:22:35,234 INFO L226 Difference]: Without dead ends: 1850 [2022-12-13 15:22:35,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:22:35,235 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 415 mSDsluCounter, 9044 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 10647 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:35,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 10647 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2022-12-13 15:22:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1705. [2022-12-13 15:22:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1703 states have (on average 1.6165590135055783) internal successors, (2753), 1704 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2753 transitions. [2022-12-13 15:22:35,269 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2753 transitions. Word has length 57 [2022-12-13 15:22:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:35,269 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2753 transitions. [2022-12-13 15:22:35,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2753 transitions. [2022-12-13 15:22:35,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 15:22:35,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:35,270 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] [2022-12-13 15:22:35,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:22:35,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:35,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2022-12-13 15:22:35,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:35,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239877058] [2022-12-13 15:22:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:35,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:35,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:35,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239877058] [2022-12-13 15:22:35,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239877058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:35,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:35,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:35,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820069619] [2022-12-13 15:22:35,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:35,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,311 INFO L87 Difference]: Start difference. First operand 1705 states and 2753 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:35,355 INFO L93 Difference]: Finished difference Result 2015 states and 3225 transitions. [2022-12-13 15:22:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:35,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 15:22:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:35,366 INFO L225 Difference]: With dead ends: 2015 [2022-12-13 15:22:35,366 INFO L226 Difference]: Without dead ends: 1852 [2022-12-13 15:22:35,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,368 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:35,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-12-13 15:22:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1850. [2022-12-13 15:22:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1848 states have (on average 1.6071428571428572) internal successors, (2970), 1849 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2970 transitions. [2022-12-13 15:22:35,417 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2970 transitions. Word has length 58 [2022-12-13 15:22:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:35,417 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 2970 transitions. [2022-12-13 15:22:35,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2970 transitions. [2022-12-13 15:22:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 15:22:35,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:35,419 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] [2022-12-13 15:22:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:22:35,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2022-12-13 15:22:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842215940] [2022-12-13 15:22:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:35,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:35,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842215940] [2022-12-13 15:22:35,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842215940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:35,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:35,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:35,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23663028] [2022-12-13 15:22:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:35,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:35,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,463 INFO L87 Difference]: Start difference. First operand 1850 states and 2970 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:35,559 INFO L93 Difference]: Finished difference Result 2434 states and 3848 transitions. [2022-12-13 15:22:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 15:22:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:35,567 INFO L225 Difference]: With dead ends: 2434 [2022-12-13 15:22:35,567 INFO L226 Difference]: Without dead ends: 2126 [2022-12-13 15:22:35,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,569 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:35,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2022-12-13 15:22:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 2124. [2022-12-13 15:22:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2122 states have (on average 1.589066918001885) internal successors, (3372), 2123 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3372 transitions. [2022-12-13 15:22:35,670 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3372 transitions. Word has length 58 [2022-12-13 15:22:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:35,670 INFO L495 AbstractCegarLoop]: Abstraction has 2124 states and 3372 transitions. [2022-12-13 15:22:35,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3372 transitions. [2022-12-13 15:22:35,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 15:22:35,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:35,671 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] [2022-12-13 15:22:35,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:22:35,671 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:35,671 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2022-12-13 15:22:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674379829] [2022-12-13 15:22:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:35,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:35,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674379829] [2022-12-13 15:22:35,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674379829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:35,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:35,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:35,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674732625] [2022-12-13 15:22:35,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:35,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:35,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:35,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,705 INFO L87 Difference]: Start difference. First operand 2124 states and 3372 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:35,807 INFO L93 Difference]: Finished difference Result 3224 states and 4998 transitions. [2022-12-13 15:22:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 15:22:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:35,813 INFO L225 Difference]: With dead ends: 3224 [2022-12-13 15:22:35,813 INFO L226 Difference]: Without dead ends: 2642 [2022-12-13 15:22:35,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,815 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:35,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-12-13 15:22:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2640. [2022-12-13 15:22:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2638 states have (on average 1.558756633813495) internal successors, (4112), 2639 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4112 transitions. [2022-12-13 15:22:35,948 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4112 transitions. Word has length 58 [2022-12-13 15:22:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:35,948 INFO L495 AbstractCegarLoop]: Abstraction has 2640 states and 4112 transitions. [2022-12-13 15:22:35,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4112 transitions. [2022-12-13 15:22:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 15:22:35,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:35,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:35,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:22:35,949 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:35,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2022-12-13 15:22:35,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:35,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446505946] [2022-12-13 15:22:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:35,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:35,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:35,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446505946] [2022-12-13 15:22:35,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446505946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:35,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948926407] [2022-12-13 15:22:35,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:35,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:35,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:35,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:35,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:35,992 INFO L87 Difference]: Start difference. First operand 2640 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:36,207 INFO L93 Difference]: Finished difference Result 4708 states and 7106 transitions. [2022-12-13 15:22:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:36,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 15:22:36,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:36,215 INFO L225 Difference]: With dead ends: 4708 [2022-12-13 15:22:36,215 INFO L226 Difference]: Without dead ends: 3610 [2022-12-13 15:22:36,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:36,217 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:36,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2022-12-13 15:22:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3608. [2022-12-13 15:22:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3606 states have (on average 1.5152523571824736) internal successors, (5464), 3607 states have internal predecessors, (5464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 5464 transitions. [2022-12-13 15:22:36,427 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 5464 transitions. Word has length 58 [2022-12-13 15:22:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:36,427 INFO L495 AbstractCegarLoop]: Abstraction has 3608 states and 5464 transitions. [2022-12-13 15:22:36,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 5464 transitions. [2022-12-13 15:22:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 15:22:36,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:36,428 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] [2022-12-13 15:22:36,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:22:36,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2022-12-13 15:22:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:36,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528333088] [2022-12-13 15:22:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:36,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:36,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528333088] [2022-12-13 15:22:36,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528333088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:36,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:36,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:36,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098664100] [2022-12-13 15:22:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:36,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:36,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:36,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:36,462 INFO L87 Difference]: Start difference. First operand 3608 states and 5464 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:36,709 INFO L93 Difference]: Finished difference Result 5791 states and 8638 transitions. [2022-12-13 15:22:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-12-13 15:22:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:36,718 INFO L225 Difference]: With dead ends: 5791 [2022-12-13 15:22:36,718 INFO L226 Difference]: Without dead ends: 4604 [2022-12-13 15:22:36,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:36,720 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:36,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:36,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2022-12-13 15:22:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2022-12-13 15:22:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.4908695652173913) internal successors, (6858), 4601 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6858 transitions. [2022-12-13 15:22:36,980 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6858 transitions. Word has length 60 [2022-12-13 15:22:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 4602 states and 6858 transitions. [2022-12-13 15:22:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6858 transitions. [2022-12-13 15:22:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 15:22:36,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:36,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:36,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:22:36,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:36,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:36,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2022-12-13 15:22:36,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:36,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303792601] [2022-12-13 15:22:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:36,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 15:22:37,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:37,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303792601] [2022-12-13 15:22:37,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303792601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:37,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:37,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351049129] [2022-12-13 15:22:37,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:37,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:37,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:37,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:37,086 INFO L87 Difference]: Start difference. First operand 4602 states and 6858 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:38,539 INFO L93 Difference]: Finished difference Result 20550 states and 29520 transitions. [2022-12-13 15:22:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:38,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 15:22:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:38,562 INFO L225 Difference]: With dead ends: 20550 [2022-12-13 15:22:38,562 INFO L226 Difference]: Without dead ends: 17492 [2022-12-13 15:22:38,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:22:38,567 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 6328 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6328 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:38,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6328 Valid, 3660 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17492 states. [2022-12-13 15:22:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17492 to 7658. [2022-12-13 15:22:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7658 states, 7656 states have (on average 1.4579414838035527) internal successors, (11162), 7657 states have internal predecessors, (11162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7658 states to 7658 states and 11162 transitions. [2022-12-13 15:22:39,274 INFO L78 Accepts]: Start accepts. Automaton has 7658 states and 11162 transitions. Word has length 77 [2022-12-13 15:22:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:39,275 INFO L495 AbstractCegarLoop]: Abstraction has 7658 states and 11162 transitions. [2022-12-13 15:22:39,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7658 states and 11162 transitions. [2022-12-13 15:22:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 15:22:39,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:39,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:39,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:22:39,277 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:39,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2022-12-13 15:22:39,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:39,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182787255] [2022-12-13 15:22:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 15:22:39,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:39,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182787255] [2022-12-13 15:22:39,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182787255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:39,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:39,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:39,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684319373] [2022-12-13 15:22:39,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:39,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:39,381 INFO L87 Difference]: Start difference. First operand 7658 states and 11162 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:41,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:41,396 INFO L93 Difference]: Finished difference Result 23606 states and 33824 transitions. [2022-12-13 15:22:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:41,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 15:22:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:41,428 INFO L225 Difference]: With dead ends: 23606 [2022-12-13 15:22:41,428 INFO L226 Difference]: Without dead ends: 20548 [2022-12-13 15:22:41,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:22:41,434 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:41,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20548 states. [2022-12-13 15:22:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20548 to 12250. [2022-12-13 15:22:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12250 states, 12248 states have (on average 1.4351730894839974) internal successors, (17578), 12249 states have internal predecessors, (17578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 17578 transitions. [2022-12-13 15:22:42,572 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 17578 transitions. Word has length 77 [2022-12-13 15:22:42,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:42,573 INFO L495 AbstractCegarLoop]: Abstraction has 12250 states and 17578 transitions. [2022-12-13 15:22:42,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 17578 transitions. [2022-12-13 15:22:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 15:22:42,574 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:42,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:42,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:22:42,575 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:42,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2022-12-13 15:22:42,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:42,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344491209] [2022-12-13 15:22:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:22:42,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344491209] [2022-12-13 15:22:42,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344491209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:42,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:42,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:42,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123161929] [2022-12-13 15:22:42,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:42,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:42,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:42,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:42,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:42,671 INFO L87 Difference]: Start difference. First operand 12250 states and 17578 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:45,316 INFO L93 Difference]: Finished difference Result 26662 states and 38128 transitions. [2022-12-13 15:22:45,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 15:22:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:45,348 INFO L225 Difference]: With dead ends: 26662 [2022-12-13 15:22:45,348 INFO L226 Difference]: Without dead ends: 23604 [2022-12-13 15:22:45,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:22:45,354 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:45,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23604 states. [2022-12-13 15:22:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23604 to 15306. [2022-12-13 15:22:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15306 states, 15304 states have (on average 1.4298222686879247) internal successors, (21882), 15305 states have internal predecessors, (21882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15306 states to 15306 states and 21882 transitions. [2022-12-13 15:22:47,183 INFO L78 Accepts]: Start accepts. Automaton has 15306 states and 21882 transitions. Word has length 77 [2022-12-13 15:22:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:47,183 INFO L495 AbstractCegarLoop]: Abstraction has 15306 states and 21882 transitions. [2022-12-13 15:22:47,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 15306 states and 21882 transitions. [2022-12-13 15:22:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 15:22:47,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:47,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:47,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:22:47,186 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2022-12-13 15:22:47,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:47,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72564153] [2022-12-13 15:22:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:47,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 15:22:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72564153] [2022-12-13 15:22:47,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72564153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:47,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:47,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:47,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890827563] [2022-12-13 15:22:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:47,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:47,298 INFO L87 Difference]: Start difference. First operand 15306 states and 21882 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:50,211 INFO L93 Difference]: Finished difference Result 29718 states and 42432 transitions. [2022-12-13 15:22:50,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:50,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 15:22:50,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:50,236 INFO L225 Difference]: With dead ends: 29718 [2022-12-13 15:22:50,237 INFO L226 Difference]: Without dead ends: 26660 [2022-12-13 15:22:50,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:22:50,243 INFO L413 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:50,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26660 states. [2022-12-13 15:22:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26660 to 18362. [2022-12-13 15:22:52,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 18360 states have (on average 1.4262527233115467) internal successors, (26186), 18361 states have internal predecessors, (26186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 26186 transitions. [2022-12-13 15:22:52,379 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 26186 transitions. Word has length 77 [2022-12-13 15:22:52,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:52,380 INFO L495 AbstractCegarLoop]: Abstraction has 18362 states and 26186 transitions. [2022-12-13 15:22:52,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:52,380 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 26186 transitions. [2022-12-13 15:22:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 15:22:52,383 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:52,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:52,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 15:22:52,384 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:52,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2022-12-13 15:22:52,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:52,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31982008] [2022-12-13 15:22:52,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:52,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:52,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31982008] [2022-12-13 15:22:52,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31982008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:52,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:52,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:52,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877779594] [2022-12-13 15:22:52,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:52,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:52,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:52,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:52,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:52,478 INFO L87 Difference]: Start difference. First operand 18362 states and 26186 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:53,894 INFO L93 Difference]: Finished difference Result 30354 states and 43281 transitions. [2022-12-13 15:22:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:22:53,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-12-13 15:22:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:53,907 INFO L225 Difference]: With dead ends: 30354 [2022-12-13 15:22:53,907 INFO L226 Difference]: Without dead ends: 13536 [2022-12-13 15:22:53,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:53,917 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:53,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:22:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2022-12-13 15:22:55,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13534. [2022-12-13 15:22:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13532 states have (on average 1.4352645580845405) internal successors, (19422), 13533 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 19422 transitions. [2022-12-13 15:22:55,299 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 19422 transitions. Word has length 79 [2022-12-13 15:22:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 13534 states and 19422 transitions. [2022-12-13 15:22:55,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 19422 transitions. [2022-12-13 15:22:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 15:22:55,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:55,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:55,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 15:22:55,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2022-12-13 15:22:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:55,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791715408] [2022-12-13 15:22:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:55,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:22:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791715408] [2022-12-13 15:22:55,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791715408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:55,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:55,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:22:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290099776] [2022-12-13 15:22:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:55,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:22:55,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:22:55,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:22:55,427 INFO L87 Difference]: Start difference. First operand 13534 states and 19422 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:22:57,940 INFO L93 Difference]: Finished difference Result 24426 states and 34948 transitions. [2022-12-13 15:22:57,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:22:57,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-12-13 15:22:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:22:57,960 INFO L225 Difference]: With dead ends: 24426 [2022-12-13 15:22:57,960 INFO L226 Difference]: Without dead ends: 22248 [2022-12-13 15:22:57,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:22:57,966 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 6333 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6333 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:22:57,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6333 Valid, 3739 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:22:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22248 states. [2022-12-13 15:22:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22248 to 15710. [2022-12-13 15:22:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 15708 states have (on average 1.4320091673032849) internal successors, (22494), 15709 states have internal predecessors, (22494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 22494 transitions. [2022-12-13 15:22:59,670 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 22494 transitions. Word has length 79 [2022-12-13 15:22:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:22:59,671 INFO L495 AbstractCegarLoop]: Abstraction has 15710 states and 22494 transitions. [2022-12-13 15:22:59,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:22:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 22494 transitions. [2022-12-13 15:22:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 15:22:59,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:22:59,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:22:59,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 15:22:59,673 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:22:59,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:22:59,673 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2022-12-13 15:22:59,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:22:59,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819414904] [2022-12-13 15:22:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:22:59,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:22:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:22:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:22:59,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:22:59,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819414904] [2022-12-13 15:22:59,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819414904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:22:59,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:22:59,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:22:59,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545493290] [2022-12-13 15:22:59,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:22:59,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:22:59,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:22:59,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:22:59,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:22:59,728 INFO L87 Difference]: Start difference. First operand 15710 states and 22494 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:00,593 INFO L93 Difference]: Finished difference Result 22786 states and 32480 transitions. [2022-12-13 15:23:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:23:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-12-13 15:23:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:00,601 INFO L225 Difference]: With dead ends: 22786 [2022-12-13 15:23:00,601 INFO L226 Difference]: Without dead ends: 8640 [2022-12-13 15:23:00,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:00,610 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:00,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:23:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2022-12-13 15:23:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 8638. [2022-12-13 15:23:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8638 states, 8636 states have (on average 1.436544696618805) internal successors, (12406), 8637 states have internal predecessors, (12406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12406 transitions. [2022-12-13 15:23:01,448 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12406 transitions. Word has length 80 [2022-12-13 15:23:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:01,448 INFO L495 AbstractCegarLoop]: Abstraction has 8638 states and 12406 transitions. [2022-12-13 15:23:01,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12406 transitions. [2022-12-13 15:23:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-13 15:23:01,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:01,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:01,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 15:23:01,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:01,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:01,450 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2022-12-13 15:23:01,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:01,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198859594] [2022-12-13 15:23:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:01,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:01,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:01,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198859594] [2022-12-13 15:23:01,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198859594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:23:01,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:23:01,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:23:01,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628043563] [2022-12-13 15:23:01,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:23:01,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:23:01,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:01,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:23:01,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:01,503 INFO L87 Difference]: Start difference. First operand 8638 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:01,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:01,964 INFO L93 Difference]: Finished difference Result 12178 states and 17348 transitions. [2022-12-13 15:23:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:23:01,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-12-13 15:23:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:01,968 INFO L225 Difference]: With dead ends: 12178 [2022-12-13 15:23:01,968 INFO L226 Difference]: Without dead ends: 5104 [2022-12-13 15:23:01,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:01,972 INFO L413 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:01,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:23:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2022-12-13 15:23:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5102. [2022-12-13 15:23:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 5100 states have (on average 1.4537254901960783) internal successors, (7414), 5101 states have internal predecessors, (7414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 7414 transitions. [2022-12-13 15:23:02,401 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 7414 transitions. Word has length 82 [2022-12-13 15:23:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:02,401 INFO L495 AbstractCegarLoop]: Abstraction has 5102 states and 7414 transitions. [2022-12-13 15:23:02,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 7414 transitions. [2022-12-13 15:23:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 15:23:02,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:02,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:02,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 15:23:02,403 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:02,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2022-12-13 15:23:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206820329] [2022-12-13 15:23:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:02,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:02,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206820329] [2022-12-13 15:23:02,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206820329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:23:02,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:23:02,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:23:02,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768530993] [2022-12-13 15:23:02,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:23:02,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:23:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:02,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:23:02,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:02,455 INFO L87 Difference]: Start difference. First operand 5102 states and 7414 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:02,688 INFO L93 Difference]: Finished difference Result 6874 states and 9860 transitions. [2022-12-13 15:23:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:23:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-13 15:23:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:02,691 INFO L225 Difference]: With dead ends: 6874 [2022-12-13 15:23:02,691 INFO L226 Difference]: Without dead ends: 3336 [2022-12-13 15:23:02,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:02,694 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:02,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:23:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2022-12-13 15:23:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3334. [2022-12-13 15:23:02,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 1.4837935174069627) internal successors, (4944), 3333 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4944 transitions. [2022-12-13 15:23:02,921 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4944 transitions. Word has length 84 [2022-12-13 15:23:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:02,921 INFO L495 AbstractCegarLoop]: Abstraction has 3334 states and 4944 transitions. [2022-12-13 15:23:02,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4944 transitions. [2022-12-13 15:23:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 15:23:02,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:02,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:02,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 15:23:02,923 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:02,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:02,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2022-12-13 15:23:02,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:02,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88399245] [2022-12-13 15:23:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:02,979 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:02,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:02,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88399245] [2022-12-13 15:23:02,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88399245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:23:02,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:23:02,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:23:02,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913041295] [2022-12-13 15:23:02,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:23:02,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:23:02,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:02,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:23:02,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:02,981 INFO L87 Difference]: Start difference. First operand 3334 states and 4944 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:03,109 INFO L93 Difference]: Finished difference Result 4222 states and 6155 transitions. [2022-12-13 15:23:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:23:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-12-13 15:23:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:03,112 INFO L225 Difference]: With dead ends: 4222 [2022-12-13 15:23:03,112 INFO L226 Difference]: Without dead ends: 2452 [2022-12-13 15:23:03,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:23:03,113 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:03,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:23:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2022-12-13 15:23:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2450. [2022-12-13 15:23:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 1.5204248366013071) internal successors, (3722), 2449 states have internal predecessors, (3722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3722 transitions. [2022-12-13 15:23:03,235 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3722 transitions. Word has length 86 [2022-12-13 15:23:03,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:03,235 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 3722 transitions. [2022-12-13 15:23:03,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3722 transitions. [2022-12-13 15:23:03,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 15:23:03,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:03,236 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:03,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 15:23:03,236 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:03,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:03,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2022-12-13 15:23:03,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:03,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293896104] [2022-12-13 15:23:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:03,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:03,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:03,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293896104] [2022-12-13 15:23:03,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293896104] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:23:03,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894514224] [2022-12-13 15:23:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:03,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:23:03,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:23:03,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:23:03,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:23:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:03,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 15:23:03,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:23:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:23:03,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:23:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:23:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894514224] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:23:04,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:23:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2022-12-13 15:23:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235019504] [2022-12-13 15:23:04,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:23:04,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 15:23:04,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 15:23:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:23:04,102 INFO L87 Difference]: Start difference. First operand 2450 states and 3722 transitions. Second operand has 16 states, 16 states have (on average 15.4375) internal successors, (247), 16 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:07,828 INFO L93 Difference]: Finished difference Result 9361 states and 13027 transitions. [2022-12-13 15:23:07,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-13 15:23:07,829 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.4375) internal successors, (247), 16 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-12-13 15:23:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:07,835 INFO L225 Difference]: With dead ends: 9361 [2022-12-13 15:23:07,835 INFO L226 Difference]: Without dead ends: 8475 [2022-12-13 15:23:07,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=540, Invalid=1812, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 15:23:07,837 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 17147 mSDsluCounter, 6397 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17147 SdHoareTripleChecker+Valid, 7927 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:07,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17147 Valid, 7927 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 15:23:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8475 states. [2022-12-13 15:23:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8475 to 7083. [2022-12-13 15:23:08,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7083 states, 7081 states have (on average 1.349950571953114) internal successors, (9559), 7082 states have internal predecessors, (9559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 9559 transitions. [2022-12-13 15:23:08,734 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 9559 transitions. Word has length 88 [2022-12-13 15:23:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:08,734 INFO L495 AbstractCegarLoop]: Abstraction has 7083 states and 9559 transitions. [2022-12-13 15:23:08,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.4375) internal successors, (247), 16 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 9559 transitions. [2022-12-13 15:23:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 15:23:08,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:08,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:08,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:23:08,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:23:08,937 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:08,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:08,938 INFO L85 PathProgramCache]: Analyzing trace with hash -298025004, now seen corresponding path program 1 times [2022-12-13 15:23:08,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:08,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559225226] [2022-12-13 15:23:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:08,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:09,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:09,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559225226] [2022-12-13 15:23:09,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559225226] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:23:09,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008266170] [2022-12-13 15:23:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:09,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:23:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:23:09,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:23:09,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:23:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:09,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 15:23:09,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:23:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:11,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:23:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:14,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008266170] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:23:14,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:23:14,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 17] total 41 [2022-12-13 15:23:14,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135259865] [2022-12-13 15:23:14,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:23:14,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 15:23:14,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 15:23:14,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1433, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 15:23:14,197 INFO L87 Difference]: Start difference. First operand 7083 states and 9559 transitions. Second operand has 41 states, 41 states have (on average 5.780487804878049) internal successors, (237), 41 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:23:46,233 INFO L93 Difference]: Finished difference Result 31670 states and 40422 transitions. [2022-12-13 15:23:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-12-13 15:23:46,234 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.780487804878049) internal successors, (237), 41 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-13 15:23:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:23:46,255 INFO L225 Difference]: With dead ends: 31670 [2022-12-13 15:23:46,255 INFO L226 Difference]: Without dead ends: 26369 [2022-12-13 15:23:46,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10098 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=4656, Invalid=23400, Unknown=0, NotChecked=0, Total=28056 [2022-12-13 15:23:46,264 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 32135 mSDsluCounter, 13599 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32135 SdHoareTripleChecker+Valid, 15180 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:23:46,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32135 Valid, 15180 Invalid, 2552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [132 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 15:23:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26369 states. [2022-12-13 15:23:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26369 to 14176. [2022-12-13 15:23:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14176 states, 14174 states have (on average 1.3132496119655708) internal successors, (18614), 14175 states have internal predecessors, (18614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14176 states to 14176 states and 18614 transitions. [2022-12-13 15:23:49,076 INFO L78 Accepts]: Start accepts. Automaton has 14176 states and 18614 transitions. Word has length 89 [2022-12-13 15:23:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:23:49,076 INFO L495 AbstractCegarLoop]: Abstraction has 14176 states and 18614 transitions. [2022-12-13 15:23:49,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.780487804878049) internal successors, (237), 41 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:23:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 14176 states and 18614 transitions. [2022-12-13 15:23:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 15:23:49,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:23:49,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:23:49,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:23:49,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:23:49,279 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:23:49,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:23:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash -417458555, now seen corresponding path program 1 times [2022-12-13 15:23:49,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:23:49,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944664220] [2022-12-13 15:23:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:49,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:23:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:49,540 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:49,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:23:49,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944664220] [2022-12-13 15:23:49,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944664220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:23:49,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431648641] [2022-12-13 15:23:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:23:49,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:23:49,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:23:49,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:23:49,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:23:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:23:49,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 15:23:49,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:23:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:50,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:23:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:23:51,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431648641] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:23:51,002 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:23:51,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2022-12-13 15:23:51,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202447868] [2022-12-13 15:23:51,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:23:51,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 15:23:51,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:23:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 15:23:51,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2022-12-13 15:23:51,004 INFO L87 Difference]: Start difference. First operand 14176 states and 18614 transitions. Second operand has 28 states, 28 states have (on average 8.214285714285714) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:00,241 INFO L93 Difference]: Finished difference Result 49613 states and 63860 transitions. [2022-12-13 15:24:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 15:24:00,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.214285714285714) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-12-13 15:24:00,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:00,278 INFO L225 Difference]: With dead ends: 49613 [2022-12-13 15:24:00,278 INFO L226 Difference]: Without dead ends: 37510 [2022-12-13 15:24:00,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=508, Invalid=1562, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 15:24:00,288 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 11404 mSDsluCounter, 5003 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11404 SdHoareTripleChecker+Valid, 6550 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:00,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11404 Valid, 6550 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 15:24:00,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37510 states. [2022-12-13 15:24:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37510 to 26877. [2022-12-13 15:24:06,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26877 states, 26875 states have (on average 1.2814139534883722) internal successors, (34438), 26876 states have internal predecessors, (34438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26877 states to 26877 states and 34438 transitions. [2022-12-13 15:24:06,670 INFO L78 Accepts]: Start accepts. Automaton has 26877 states and 34438 transitions. Word has length 90 [2022-12-13 15:24:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:06,670 INFO L495 AbstractCegarLoop]: Abstraction has 26877 states and 34438 transitions. [2022-12-13 15:24:06,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.214285714285714) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 26877 states and 34438 transitions. [2022-12-13 15:24:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 15:24:06,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:06,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:24:06,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:24:06,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 15:24:06,872 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:06,873 INFO L85 PathProgramCache]: Analyzing trace with hash -476452617, now seen corresponding path program 1 times [2022-12-13 15:24:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:06,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303459195] [2022-12-13 15:24:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:06,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:07,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303459195] [2022-12-13 15:24:07,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303459195] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:24:07,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282163596] [2022-12-13 15:24:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:07,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:07,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:07,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:24:07,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:24:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:07,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 15:24:07,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:24:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:07,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:24:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:08,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282163596] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:24:08,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:24:08,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-12-13 15:24:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193009815] [2022-12-13 15:24:08,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:24:08,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 15:24:08,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 15:24:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2022-12-13 15:24:08,680 INFO L87 Difference]: Start difference. First operand 26877 states and 34438 transitions. Second operand has 25 states, 25 states have (on average 10.16) internal successors, (254), 24 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:24:34,608 INFO L93 Difference]: Finished difference Result 102566 states and 127116 transitions. [2022-12-13 15:24:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 15:24:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.16) internal successors, (254), 24 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-12-13 15:24:34,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:24:34,693 INFO L225 Difference]: With dead ends: 102566 [2022-12-13 15:24:34,693 INFO L226 Difference]: Without dead ends: 78677 [2022-12-13 15:24:34,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=736, Invalid=3170, Unknown=0, NotChecked=0, Total=3906 [2022-12-13 15:24:34,710 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 22158 mSDsluCounter, 5688 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22158 SdHoareTripleChecker+Valid, 7291 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:24:34,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22158 Valid, 7291 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 15:24:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78677 states. [2022-12-13 15:24:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78677 to 47861. [2022-12-13 15:24:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47861 states, 47859 states have (on average 1.2440502308865626) internal successors, (59539), 47860 states have internal predecessors, (59539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47861 states to 47861 states and 59539 transitions. [2022-12-13 15:24:48,384 INFO L78 Accepts]: Start accepts. Automaton has 47861 states and 59539 transitions. Word has length 90 [2022-12-13 15:24:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:24:48,384 INFO L495 AbstractCegarLoop]: Abstraction has 47861 states and 59539 transitions. [2022-12-13 15:24:48,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.16) internal successors, (254), 24 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:24:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 47861 states and 59539 transitions. [2022-12-13 15:24:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 15:24:48,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:24:48,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:24:48,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:24:48,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 15:24:48,587 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:24:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:24:48,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2124965049, now seen corresponding path program 1 times [2022-12-13 15:24:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:24:48,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923424130] [2022-12-13 15:24:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:24:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:24:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923424130] [2022-12-13 15:24:51,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923424130] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:24:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397039135] [2022-12-13 15:24:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:24:51,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:24:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:24:51,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:24:51,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:24:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:24:51,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 15:24:51,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:24:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:53,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:24:56,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:24:56,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397039135] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:24:56,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:24:56,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 13, 14] total 55 [2022-12-13 15:24:56,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754944886] [2022-12-13 15:24:56,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:24:56,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-13 15:24:56,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:24:56,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-13 15:24:56,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2784, Unknown=0, NotChecked=0, Total=2970 [2022-12-13 15:24:56,913 INFO L87 Difference]: Start difference. First operand 47861 states and 59539 transitions. Second operand has 55 states, 55 states have (on average 4.7272727272727275) internal successors, (260), 55 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:26:07,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:26:07,086 INFO L93 Difference]: Finished difference Result 128456 states and 156629 transitions. [2022-12-13 15:26:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-12-13 15:26:07,087 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 4.7272727272727275) internal successors, (260), 55 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 15:26:07,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:26:07,220 INFO L225 Difference]: With dead ends: 128456 [2022-12-13 15:26:07,220 INFO L226 Difference]: Without dead ends: 112876 [2022-12-13 15:26:07,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 154 SyntacticMatches, 7 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9982 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=5140, Invalid=28166, Unknown=0, NotChecked=0, Total=33306 [2022-12-13 15:26:07,244 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 22994 mSDsluCounter, 39241 mSDsCounter, 0 mSdLazyCounter, 5271 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22994 SdHoareTripleChecker+Valid, 40824 SdHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 5271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:26:07,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22994 Valid, 40824 Invalid, 5438 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [167 Valid, 5271 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-13 15:26:07,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112876 states. [2022-12-13 15:26:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112876 to 44345. [2022-12-13 15:26:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44345 states, 44343 states have (on average 1.2425862030083665) internal successors, (55100), 44344 states have internal predecessors, (55100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:26:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44345 states to 44345 states and 55100 transitions. [2022-12-13 15:26:21,930 INFO L78 Accepts]: Start accepts. Automaton has 44345 states and 55100 transitions. Word has length 92 [2022-12-13 15:26:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:26:21,930 INFO L495 AbstractCegarLoop]: Abstraction has 44345 states and 55100 transitions. [2022-12-13 15:26:21,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.7272727272727275) internal successors, (260), 55 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:26:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 44345 states and 55100 transitions. [2022-12-13 15:26:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 15:26:21,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:26:21,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:26:21,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 15:26:22,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 15:26:22,134 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:26:22,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:26:22,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2022-12-13 15:26:22,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:26:22,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033808718] [2022-12-13 15:26:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:22,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:26:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:24,487 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:26:24,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:26:24,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033808718] [2022-12-13 15:26:24,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033808718] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:26:24,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353673674] [2022-12-13 15:26:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:26:24,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:26:24,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:26:24,488 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:26:24,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:26:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:26:24,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 15:26:24,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:26:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:26:26,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:26:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:26:27,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353673674] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:26:27,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:26:27,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 11, 11] total 50 [2022-12-13 15:26:27,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112741536] [2022-12-13 15:26:27,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:26:27,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-13 15:26:27,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:26:27,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-13 15:26:27,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2289, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 15:26:27,279 INFO L87 Difference]: Start difference. First operand 44345 states and 55100 transitions. Second operand has 50 states, 50 states have (on average 4.98) internal successors, (249), 50 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:27:20,584 INFO L93 Difference]: Finished difference Result 86427 states and 107035 transitions. [2022-12-13 15:27:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-12-13 15:27:20,584 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.98) internal successors, (249), 50 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 15:27:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:27:20,659 INFO L225 Difference]: With dead ends: 86427 [2022-12-13 15:27:20,659 INFO L226 Difference]: Without dead ends: 71049 [2022-12-13 15:27:20,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6867 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=3559, Invalid=20003, Unknown=0, NotChecked=0, Total=23562 [2022-12-13 15:27:20,740 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 24690 mSDsluCounter, 36152 mSDsCounter, 0 mSdLazyCounter, 5514 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24690 SdHoareTripleChecker+Valid, 37806 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 5514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:27:20,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24690 Valid, 37806 Invalid, 5629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 5514 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-13 15:27:20,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71049 states. [2022-12-13 15:27:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71049 to 40295. [2022-12-13 15:27:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40295 states, 40293 states have (on average 1.2414066959521506) internal successors, (50020), 40294 states have internal predecessors, (50020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40295 states to 40295 states and 50020 transitions. [2022-12-13 15:27:36,442 INFO L78 Accepts]: Start accepts. Automaton has 40295 states and 50020 transitions. Word has length 92 [2022-12-13 15:27:36,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:27:36,443 INFO L495 AbstractCegarLoop]: Abstraction has 40295 states and 50020 transitions. [2022-12-13 15:27:36,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.98) internal successors, (249), 50 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 40295 states and 50020 transitions. [2022-12-13 15:27:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 15:27:36,443 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:36,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:36,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 15:27:36,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 15:27:36,645 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:27:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash 364132515, now seen corresponding path program 1 times [2022-12-13 15:27:36,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:36,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54764433] [2022-12-13 15:27:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:36,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:37,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:37,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54764433] [2022-12-13 15:27:37,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54764433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:27:37,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216664900] [2022-12-13 15:27:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:27:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:37,388 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:27:37,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:27:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:37,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 15:27:37,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:27:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:38,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:27:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:39,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216664900] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:27:39,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:27:39,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 41 [2022-12-13 15:27:39,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079818051] [2022-12-13 15:27:39,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:27:39,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 15:27:39,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:39,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 15:27:39,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 15:27:39,589 INFO L87 Difference]: Start difference. First operand 40295 states and 50020 transitions. Second operand has 41 states, 41 states have (on average 5.682926829268292) internal successors, (233), 41 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:28:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:28:31,644 INFO L93 Difference]: Finished difference Result 130849 states and 162464 transitions. [2022-12-13 15:28:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 15:28:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.682926829268292) internal successors, (233), 41 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 15:28:31,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:28:31,776 INFO L225 Difference]: With dead ends: 130849 [2022-12-13 15:28:31,776 INFO L226 Difference]: Without dead ends: 115481 [2022-12-13 15:28:31,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=888, Invalid=4224, Unknown=0, NotChecked=0, Total=5112 [2022-12-13 15:28:31,797 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 19467 mSDsluCounter, 20541 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19467 SdHoareTripleChecker+Valid, 22141 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:28:31,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19467 Valid, 22141 Invalid, 2491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 15:28:31,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115481 states. [2022-12-13 15:28:47,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115481 to 38485. [2022-12-13 15:28:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38485 states, 38483 states have (on average 1.2434581503521036) internal successors, (47852), 38484 states have internal predecessors, (47852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:28:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38485 states to 38485 states and 47852 transitions. [2022-12-13 15:28:47,467 INFO L78 Accepts]: Start accepts. Automaton has 38485 states and 47852 transitions. Word has length 92 [2022-12-13 15:28:47,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:28:47,468 INFO L495 AbstractCegarLoop]: Abstraction has 38485 states and 47852 transitions. [2022-12-13 15:28:47,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.682926829268292) internal successors, (233), 41 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:28:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 38485 states and 47852 transitions. [2022-12-13 15:28:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 15:28:47,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:28:47,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:28:47,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 15:28:47,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 15:28:47,670 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:28:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:28:47,672 INFO L85 PathProgramCache]: Analyzing trace with hash 570790749, now seen corresponding path program 1 times [2022-12-13 15:28:47,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:28:47,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816527704] [2022-12-13 15:28:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:28:47,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:28:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:28:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:28:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:28:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816527704] [2022-12-13 15:28:48,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816527704] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:28:48,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622862214] [2022-12-13 15:28:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:28:48,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:28:48,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:28:48,431 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:28:48,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:28:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:28:48,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 15:28:48,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:28:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:28:49,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:28:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:28:51,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622862214] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:28:51,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:28:51,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 36 [2022-12-13 15:28:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212064779] [2022-12-13 15:28:51,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:28:51,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 15:28:51,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:28:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 15:28:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 15:28:51,271 INFO L87 Difference]: Start difference. First operand 38485 states and 47852 transitions. Second operand has 36 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:29:36,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:29:36,511 INFO L93 Difference]: Finished difference Result 94756 states and 116709 transitions. [2022-12-13 15:29:36,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 15:29:36,512 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 15:29:36,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:29:36,597 INFO L225 Difference]: With dead ends: 94756 [2022-12-13 15:29:36,597 INFO L226 Difference]: Without dead ends: 80309 [2022-12-13 15:29:36,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 162 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1292, Invalid=4714, Unknown=0, NotChecked=0, Total=6006 [2022-12-13 15:29:36,616 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 18124 mSDsluCounter, 22204 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18124 SdHoareTripleChecker+Valid, 23800 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:29:36,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18124 Valid, 23800 Invalid, 1546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 15:29:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80309 states. [2022-12-13 15:29:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80309 to 34683. [2022-12-13 15:29:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34683 states, 34681 states have (on average 1.2441106081139528) internal successors, (43147), 34682 states have internal predecessors, (43147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:29:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34683 states to 34683 states and 43147 transitions. [2022-12-13 15:29:52,711 INFO L78 Accepts]: Start accepts. Automaton has 34683 states and 43147 transitions. Word has length 94 [2022-12-13 15:29:52,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:29:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 34683 states and 43147 transitions. [2022-12-13 15:29:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:29:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 34683 states and 43147 transitions. [2022-12-13 15:29:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 15:29:52,713 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:29:52,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:29:52,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 15:29:52,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:29:52,914 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:29:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:29:52,915 INFO L85 PathProgramCache]: Analyzing trace with hash -565350678, now seen corresponding path program 1 times [2022-12-13 15:29:52,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:29:52,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115734029] [2022-12-13 15:29:52,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:29:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:29:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:29:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:29:53,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:29:53,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115734029] [2022-12-13 15:29:53,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115734029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:29:53,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:29:53,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:29:53,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522938449] [2022-12-13 15:29:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:29:53,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:29:53,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:29:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:29:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:29:53,043 INFO L87 Difference]: Start difference. First operand 34683 states and 43147 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:30:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:30:12,784 INFO L93 Difference]: Finished difference Result 37728 states and 48112 transitions. [2022-12-13 15:30:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:30:12,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-12-13 15:30:12,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:30:12,823 INFO L225 Difference]: With dead ends: 37728 [2022-12-13 15:30:12,823 INFO L226 Difference]: Without dead ends: 36187 [2022-12-13 15:30:12,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:30:12,830 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 796 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 4397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:30:12,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 872 Invalid, 4397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-13 15:30:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36187 states. [2022-12-13 15:30:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36187 to 36185. [2022-12-13 15:30:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36185 states, 36183 states have (on average 1.2358289804604372) internal successors, (44716), 36184 states have internal predecessors, (44716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:30:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36185 states to 36185 states and 44716 transitions. [2022-12-13 15:30:28,919 INFO L78 Accepts]: Start accepts. Automaton has 36185 states and 44716 transitions. Word has length 119 [2022-12-13 15:30:28,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:30:28,919 INFO L495 AbstractCegarLoop]: Abstraction has 36185 states and 44716 transitions. [2022-12-13 15:30:28,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:30:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 36185 states and 44716 transitions. [2022-12-13 15:30:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 15:30:28,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:30:28,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:30:28,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 15:30:28,922 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:30:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:30:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2004983110, now seen corresponding path program 1 times [2022-12-13 15:30:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:30:28,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474092160] [2022-12-13 15:30:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:30:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 39 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:30:29,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:30:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474092160] [2022-12-13 15:30:29,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474092160] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:30:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249894570] [2022-12-13 15:30:29,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:29,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:30:29,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:30:29,585 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:30:29,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb5792e7-5a9f-4cce-9de6-83f38c129c18/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:30:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:30:29,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 15:30:29,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:30:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:30:37,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:30:39,946 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 39 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:30:39,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249894570] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:30:39,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:30:39,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2022-12-13 15:30:39,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636560449] [2022-12-13 15:30:39,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:30:39,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 15:30:39,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:30:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 15:30:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=592, Unknown=3, NotChecked=0, Total=702 [2022-12-13 15:30:39,948 INFO L87 Difference]: Start difference. First operand 36185 states and 44716 transitions. Second operand has 27 states, 27 states have (on average 11.74074074074074) internal successors, (317), 26 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:30:44,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:46,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:48,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:50,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:51,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:53,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:56,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:57,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:30:59,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:00,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:02,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:04,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:06,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:09,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:10,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:12,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:14,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:16,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:19,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:21,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:23,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:25,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:27,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:29,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:30,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:33,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:35,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:37,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:39,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:41,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:45,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:47,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:49,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:51,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:53,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:56,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:31:58,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:00,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:02,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:04,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:06,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:08,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:11,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:13,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:15,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:17,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:20,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:22,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:24,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:27,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:29,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:31,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:33,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:35,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:37,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:39,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:41,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:43,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:46,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:48,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:50,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:52,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:54,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:56,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:32:58,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:00,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:02,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:04,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:06,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:08,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:10,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:12,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:14,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:16,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:18,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:21,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:23,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:25,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:27,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:30,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:32,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:34,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:36,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:39,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:41,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:43,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:45,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:47,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:49,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:52,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:54,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:56,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:33:58,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:00,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:03,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:05,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:07,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:10,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:13,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:15,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:18,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:20,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:22,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:23,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:26,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:28,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:30,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:32,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:37,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:39,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:41,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:43,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:44,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:46,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:48,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:50,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:53,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:55,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:34:59,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:01,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:02,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:04,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:06,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:08,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:10,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:12,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:14,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:16,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:18,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:20,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:22,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:24,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:26,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:28,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:30,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:32,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:34,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:36,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:38,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:40,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:42,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:44,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:46,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:48,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:54,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:35:56,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:36:00,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:36:02,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]