./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS --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 ed3d7c65b5f276938c992de2fd71c82e0f79af5cc9147088727c012b3d12461a --- 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-4e7fbc6 [2022-11-23 01:50:15,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:50:15,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:50:15,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:50:15,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:50:15,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:50:15,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:50:15,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:50:15,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:50:15,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:50:15,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:50:15,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:50:15,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:50:15,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:50:15,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:50:15,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:50:15,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:50:15,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:50:15,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:50:15,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:50:15,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:50:15,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:50:15,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:50:15,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:50:15,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:50:15,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:50:15,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:50:15,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:50:15,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:50:15,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:50:15,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:50:15,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:50:15,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:50:15,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:50:15,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:50:15,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:50:15,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:50:15,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:50:15,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:50:15,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:50:15,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:50:15,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 01:50:15,683 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:50:15,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:50:15,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:50:15,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:50:15,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:50:15,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:50:15,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:50:15,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:50:15,695 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:50:15,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:50:15,696 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 01:50:15,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:50:15,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 01:50:15,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:50:15,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:50:15,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:50:15,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:50:15,698 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 01:50:15,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:50:15,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:50:15,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:50:15,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:50:15,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:50:15,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:50:15,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:50:15,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:50:15,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:50:15,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:50:15,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:50:15,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:50:15,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:50:15,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:50:15,702 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:50:15,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:50:15,702 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_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed3d7c65b5f276938c992de2fd71c82e0f79af5cc9147088727c012b3d12461a [2022-11-23 01:50:15,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:50:16,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:50:16,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:50:16,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:50:16,011 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:50:16,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c [2022-11-23 01:50:19,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:50:19,845 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:50:19,846 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c [2022-11-23 01:50:19,907 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/data/9e8ff1664/87dd6446e85a472e89cfa39d900d1605/FLAG192d39cd6 [2022-11-23 01:50:19,926 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/data/9e8ff1664/87dd6446e85a472e89cfa39d900d1605 [2022-11-23 01:50:19,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:50:19,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:50:19,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:19,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:50:19,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:50:19,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251f394b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19, skipping insertion in model container [2022-11-23 01:50:19,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:50:20,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:50:22,329 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_8c515b62-ac9e-413f-b75a-9bd2483e5390/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[377612,377625] [2022-11-23 01:50:22,398 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_8c515b62-ac9e-413f-b75a-9bd2483e5390/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[383339,383352] [2022-11-23 01:50:22,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:22,719 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:50:23,954 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_8c515b62-ac9e-413f-b75a-9bd2483e5390/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[377612,377625] [2022-11-23 01:50:23,970 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_8c515b62-ac9e-413f-b75a-9bd2483e5390/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[383339,383352] [2022-11-23 01:50:24,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:24,144 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:50:24,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24 WrapperNode [2022-11-23 01:50:24,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:24,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:24,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:50:24,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:50:24,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,508 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-11-23 01:50:24,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:24,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:50:24,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:50:24,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:50:24,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:24,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:25,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:25,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:50:25,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:50:25,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:50:25,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:50:25,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (1/1) ... [2022-11-23 01:50:25,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:50:25,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c515b62-ac9e-413f-b75a-9bd2483e5390/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:50:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:50:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-23 01:50:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-23 01:50:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-23 01:50:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-23 01:50:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-23 01:50:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-23 01:50:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-23 01:50:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-23 01:50:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-23 01:50:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-23 01:50:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-23 01:50:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-23 01:50:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:50:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:50:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:50:25,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:50:25,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:50:34,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:50:34,842 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:50:34,842 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-23 01:50:34,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:34 BoogieIcfgContainer [2022-11-23 01:50:34,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:50:34,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:50:34,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:50:34,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:50:34,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:19" (1/3) ... [2022-11-23 01:50:34,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ed3907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:34, skipping insertion in model container [2022-11-23 01:50:34,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:24" (2/3) ... [2022-11-23 01:50:34,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ed3907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:34, skipping insertion in model container [2022-11-23 01:50:34,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:34" (3/3) ... [2022-11-23 01:50:34,859 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.13.cil-2.c [2022-11-23 01:50:34,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:50:34,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 01:50:34,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:50:35,000 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;@676e096e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:50:35,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 01:50:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 01:50:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:50:35,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:35,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:35,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:50:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:35,064 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-11-23 01:50:35,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:35,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103447747] [2022-11-23 01:50:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:35,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:50:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:50:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:50:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:50:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:50:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:35,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:35,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103447747] [2022-11-23 01:50:35,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103447747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:35,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:35,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:50:35,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270433706] [2022-11-23 01:50:35,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:35,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:50:35,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:35,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:50:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:50:35,866 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:38,846 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-11-23 01:50:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 01:50:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:50:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:50:38,874 INFO L225 Difference]: With dead ends: 5325 [2022-11-23 01:50:38,875 INFO L226 Difference]: Without dead ends: 2676 [2022-11-23 01:50:38,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 01:50:38,886 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 1111 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 16883 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 01:50:38,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 16883 Invalid, 1171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 01:50:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-11-23 01:50:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-11-23 01:50:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 01:50:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-11-23 01:50:39,070 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-11-23 01:50:39,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:50:39,071 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-11-23 01:50:39,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-11-23 01:50:39,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:50:39,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:39,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:39,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:50:39,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:50:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-11-23 01:50:39,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:39,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318205956] [2022-11-23 01:50:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:50:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:50:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:50:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:50:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:50:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:39,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318205956] [2022-11-23 01:50:39,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318205956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:39,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:39,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:50:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149555943] [2022-11-23 01:50:39,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:39,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:50:39,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:39,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:50:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:50:39,366 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:42,275 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-11-23 01:50:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 01:50:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:50:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:50:42,290 INFO L225 Difference]: With dead ends: 3061 [2022-11-23 01:50:42,290 INFO L226 Difference]: Without dead ends: 2676 [2022-11-23 01:50:42,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 01:50:42,294 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 1097 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 16610 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 01:50:42,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 16610 Invalid, 1170 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [58 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 01:50:42,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-11-23 01:50:42,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-11-23 01:50:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 01:50:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-11-23 01:50:42,429 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-11-23 01:50:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:50:42,429 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-11-23 01:50:42,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-11-23 01:50:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:50:42,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:42,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:42,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 01:50:42,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:50:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:42,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-11-23 01:50:42,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:42,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056522892] [2022-11-23 01:50:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:42,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:50:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:50:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:50:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:50:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:50:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:42,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:42,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056522892] [2022-11-23 01:50:42,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056522892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:42,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:42,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 01:50:42,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19384279] [2022-11-23 01:50:42,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:42,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:50:42,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:50:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:50:42,903 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:47,782 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-11-23 01:50:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 01:50:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:50:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:50:47,796 INFO L225 Difference]: With dead ends: 3611 [2022-11-23 01:50:47,797 INFO L226 Difference]: Without dead ends: 3230 [2022-11-23 01:50:47,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-23 01:50:47,801 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 5632 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 17206 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:50:47,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5652 Valid, 17206 Invalid, 2660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 01:50:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-11-23 01:50:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-11-23 01:50:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-11-23 01:50:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-11-23 01:50:47,965 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-11-23 01:50:47,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:50:47,965 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-11-23 01:50:47,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-11-23 01:50:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:50:47,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:47,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:47,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 01:50:47,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:50:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-11-23 01:50:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:47,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234999027] [2022-11-23 01:50:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:47,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:50:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:50:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:50:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:50:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:50:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:48,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:48,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234999027] [2022-11-23 01:50:48,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234999027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:48,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:48,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:50:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718476029] [2022-11-23 01:50:48,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:48,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:50:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:50:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:50:48,330 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:54,138 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-11-23 01:50:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:50:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:50:54,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:50:54,156 INFO L225 Difference]: With dead ends: 4589 [2022-11-23 01:50:54,157 INFO L226 Difference]: Without dead ends: 3806 [2022-11-23 01:50:54,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:50:54,162 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 5679 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5699 SdHoareTripleChecker+Valid, 22373 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 01:50:54,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5699 Valid, 22373 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 01:50:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-11-23 01:50:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-11-23 01:50:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-11-23 01:50:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-11-23 01:50:54,476 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-11-23 01:50:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:50:54,483 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-11-23 01:50:54,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:50:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-11-23 01:50:54,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:50:54,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:54,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:54,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 01:50:54,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:50:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-11-23 01:50:54,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:54,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397118504] [2022-11-23 01:50:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:54,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:50:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:50:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:50:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:50:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:50:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:54,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397118504] [2022-11-23 01:50:54,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397118504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:54,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:54,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:50:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005467974] [2022-11-23 01:50:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:54,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:50:54,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:50:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:50:54,912 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:00,970 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-11-23 01:51:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:51:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:00,994 INFO L225 Difference]: With dead ends: 6030 [2022-11-23 01:51:00,994 INFO L226 Difference]: Without dead ends: 4874 [2022-11-23 01:51:01,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:51:01,001 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5673 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3824 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5693 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:01,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5693 Valid, 22371 Invalid, 3891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3824 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 01:51:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-11-23 01:51:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-11-23 01:51:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-11-23 01:51:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-11-23 01:51:01,475 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-11-23 01:51:01,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:01,475 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-11-23 01:51:01,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:01,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-11-23 01:51:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:01,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:01,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:01,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 01:51:01,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:01,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:01,483 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-11-23 01:51:01,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:01,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625182833] [2022-11-23 01:51:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:01,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:01,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:01,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625182833] [2022-11-23 01:51:01,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625182833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:01,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:01,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83995363] [2022-11-23 01:51:01,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:01,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:01,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:01,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:01,822 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:07,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:07,889 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-11-23 01:51:07,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:51:07,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:07,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:07,919 INFO L225 Difference]: With dead ends: 8806 [2022-11-23 01:51:07,919 INFO L226 Difference]: Without dead ends: 6900 [2022-11-23 01:51:07,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:51:07,928 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5672 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3811 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:07,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 22371 Invalid, 3878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3811 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 01:51:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-11-23 01:51:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-11-23 01:51:08,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-11-23 01:51:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-11-23 01:51:08,622 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-11-23 01:51:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:08,623 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-11-23 01:51:08,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-11-23 01:51:08,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:08,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:08,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 01:51:08,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-11-23 01:51:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:08,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744290863] [2022-11-23 01:51:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:08,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:08,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744290863] [2022-11-23 01:51:08,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744290863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:08,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:08,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58365811] [2022-11-23 01:51:08,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:08,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:08,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:08,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:08,986 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:15,568 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-11-23 01:51:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:51:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:15,606 INFO L225 Difference]: With dead ends: 14357 [2022-11-23 01:51:15,606 INFO L226 Difference]: Without dead ends: 10950 [2022-11-23 01:51:15,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:51:15,621 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5671 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5691 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:15,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5691 Valid, 22371 Invalid, 3865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 01:51:15,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-11-23 01:51:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-11-23 01:51:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-11-23 01:51:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-11-23 01:51:16,664 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-11-23 01:51:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:16,664 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-11-23 01:51:16,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-11-23 01:51:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:16,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:16,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:16,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 01:51:16,671 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:16,672 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-11-23 01:51:16,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:16,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187689411] [2022-11-23 01:51:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:16,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:16,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:16,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187689411] [2022-11-23 01:51:16,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187689411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:16,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:16,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:16,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837643511] [2022-11-23 01:51:16,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:16,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:16,987 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:24,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:24,403 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-11-23 01:51:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:51:24,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:24,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:24,470 INFO L225 Difference]: With dead ends: 25460 [2022-11-23 01:51:24,470 INFO L226 Difference]: Without dead ends: 19044 [2022-11-23 01:51:24,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:51:24,495 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 5782 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5802 SdHoareTripleChecker+Valid, 21477 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:24,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5802 Valid, 21477 Invalid, 3478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3375 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 01:51:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-11-23 01:51:26,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-11-23 01:51:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-23 01:51:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-11-23 01:51:26,117 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-11-23 01:51:26,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:26,117 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-11-23 01:51:26,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-11-23 01:51:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:26,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:26,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:26,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 01:51:26,127 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:26,128 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-11-23 01:51:26,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:26,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112822907] [2022-11-23 01:51:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:26,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:26,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:26,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112822907] [2022-11-23 01:51:26,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112822907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:26,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:26,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:26,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445428883] [2022-11-23 01:51:26,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:26,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:26,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:26,551 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:31,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:31,985 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-11-23 01:51:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:51:31,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:31,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:32,056 INFO L225 Difference]: With dead ends: 31774 [2022-11-23 01:51:32,057 INFO L226 Difference]: Without dead ends: 19325 [2022-11-23 01:51:32,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 01:51:32,099 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5180 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 21099 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:32,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 21099 Invalid, 2015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 01:51:32,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-11-23 01:51:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-11-23 01:51:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-23 01:51:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-11-23 01:51:34,213 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-11-23 01:51:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:34,213 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-11-23 01:51:34,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-11-23 01:51:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:34,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:34,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:34,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 01:51:34,224 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-11-23 01:51:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:34,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134819709] [2022-11-23 01:51:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:34,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:34,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:34,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134819709] [2022-11-23 01:51:34,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134819709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:34,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:34,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:34,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4299415] [2022-11-23 01:51:34,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:34,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:34,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:34,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:34,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:34,521 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:45,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:51:45,157 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-11-23 01:51:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:51:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:51:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:51:45,272 INFO L225 Difference]: With dead ends: 47633 [2022-11-23 01:51:45,272 INFO L226 Difference]: Without dead ends: 35184 [2022-11-23 01:51:45,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:51:45,309 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 01:51:45,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22371 Invalid, 3814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 01:51:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-11-23 01:51:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-11-23 01:51:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-11-23 01:51:48,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-11-23 01:51:48,818 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-11-23 01:51:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:51:48,819 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-11-23 01:51:48,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:51:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-11-23 01:51:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:51:48,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:51:48,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:51:48,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 01:51:48,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:51:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:51:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-11-23 01:51:48,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:51:48,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395822271] [2022-11-23 01:51:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:51:48,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:51:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:51:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:51:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:51:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:51:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:51:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:51:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:49,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:51:49,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395822271] [2022-11-23 01:51:49,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395822271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:51:49,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:51:49,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:51:49,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775323884] [2022-11-23 01:51:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:51:49,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:51:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:51:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:51:49,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:51:49,140 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:52:05,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:52:05,629 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-11-23 01:52:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 01:52:05,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:52:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:52:05,869 INFO L225 Difference]: With dead ends: 92049 [2022-11-23 01:52:05,870 INFO L226 Difference]: Without dead ends: 67470 [2022-11-23 01:52:05,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-23 01:52:05,953 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5667 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5687 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 01:52:05,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5687 Valid, 22371 Invalid, 3796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 01:52:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-11-23 01:52:13,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-11-23 01:52:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-11-23 01:52:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-11-23 01:52:13,491 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-11-23 01:52:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:52:13,491 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-11-23 01:52:13,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:52:13,492 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-11-23 01:52:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 01:52:13,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:52:13,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:52:13,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 01:52:13,527 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:52:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:52:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-11-23 01:52:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:52:13,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016726343] [2022-11-23 01:52:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:52:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:52:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 01:52:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 01:52:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 01:52:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 01:52:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-23 01:52:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:52:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:52:13,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:52:13,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016726343] [2022-11-23 01:52:13,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016726343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:52:13,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:52:13,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 01:52:13,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597887967] [2022-11-23 01:52:13,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:52:13,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 01:52:13,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:52:13,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 01:52:13,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 01:52:13,803 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 01:52:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:52:28,211 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-11-23 01:52:28,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:52:28,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-11-23 01:52:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:52:28,398 INFO L225 Difference]: With dead ends: 117340 [2022-11-23 01:52:28,398 INFO L226 Difference]: Without dead ends: 68440 [2022-11-23 01:52:28,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 01:52:28,496 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5184 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 21099 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 01:52:28,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 21099 Invalid, 1966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 01:52:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states.