./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R --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 72620db997a696b765551553d948c01e38a2655135f3204851d216bb1b321828 --- 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-38b53e6 [2022-11-25 18:12:16,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:12:16,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:12:16,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:12:16,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:12:16,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:12:16,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:12:16,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:12:16,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:12:16,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:12:16,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:12:16,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:12:16,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:12:16,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:12:16,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:12:16,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:12:16,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:12:16,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:12:16,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:12:16,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:12:16,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:12:16,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:12:16,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:12:16,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:12:16,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:12:16,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:12:16,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:12:16,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:12:16,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:12:16,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:12:16,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:12:16,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:12:16,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:12:16,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:12:16,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:12:16,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:12:16,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:12:16,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:12:16,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:12:16,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:12:16,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:12:16,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:12:16,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:12:16,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:12:16,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:12:16,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:12:16,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:12:16,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:12:16,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:12:16,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:12:16,153 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:12:16,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:12:16,155 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:12:16,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:12:16,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:12:16,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:12:16,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:12:16,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:12:16,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:12:16,156 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:12:16,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:12:16,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:12:16,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:12:16,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:12:16,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:12:16,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:12:16,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:12:16,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:12:16,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:12:16,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:12:16,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:12:16,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:12:16,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:12:16,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:12:16,160 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:12:16,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:12:16,161 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_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72620db997a696b765551553d948c01e38a2655135f3204851d216bb1b321828 [2022-11-25 18:12:16,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:12:16,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:12:16,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:12:16,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:12:16,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:12:16,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/eca-rers2012/Problem04_label39.c [2022-11-25 18:12:19,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:12:20,400 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:12:20,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/sv-benchmarks/c/eca-rers2012/Problem04_label39.c [2022-11-25 18:12:20,439 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/data/d1ddbccb2/2dbef2237b6f416fa7db857d982c604b/FLAG1946405fd [2022-11-25 18:12:20,456 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/data/d1ddbccb2/2dbef2237b6f416fa7db857d982c604b [2022-11-25 18:12:20,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:12:20,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:12:20,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:12:20,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:12:20,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:12:20,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:12:20" (1/1) ... [2022-11-25 18:12:20,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451908e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:20, skipping insertion in model container [2022-11-25 18:12:20,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:12:20" (1/1) ... [2022-11-25 18:12:20,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:12:20,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:12:22,208 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_26877942-1137-499f-b737-485e54fe794f/sv-benchmarks/c/eca-rers2012/Problem04_label39.c[176778,176791] [2022-11-25 18:12:22,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:12:22,252 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:12:22,960 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_26877942-1137-499f-b737-485e54fe794f/sv-benchmarks/c/eca-rers2012/Problem04_label39.c[176778,176791] [2022-11-25 18:12:22,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:12:23,002 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:12:23,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23 WrapperNode [2022-11-25 18:12:23,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:12:23,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:12:23,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:12:23,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:12:23,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,287 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5572 [2022-11-25 18:12:23,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:12:23,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:12:23,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:12:23,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:12:23,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:12:23,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:12:23,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:12:23,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:12:23,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (1/1) ... [2022-11-25 18:12:23,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:12:23,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:23,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:12:23,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:12:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:12:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:12:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:12:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:12:23,790 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:12:23,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:12:29,129 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:12:29,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:12:29,147 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:12:29,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:12:29 BoogieIcfgContainer [2022-11-25 18:12:29,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:12:29,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:12:29,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:12:29,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:12:29,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:12:20" (1/3) ... [2022-11-25 18:12:29,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55015e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:12:29, skipping insertion in model container [2022-11-25 18:12:29,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:23" (2/3) ... [2022-11-25 18:12:29,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55015e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:12:29, skipping insertion in model container [2022-11-25 18:12:29,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:12:29" (3/3) ... [2022-11-25 18:12:29,160 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label39.c [2022-11-25 18:12:29,182 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:12:29,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:12:29,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:12:29,270 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;@214d473b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:12:29,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:12:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-11-25 18:12:29,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:29,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:29,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:12:29,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:29,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1651317812, now seen corresponding path program 1 times [2022-11-25 18:12:29,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:29,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414347796] [2022-11-25 18:12:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:29,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:39,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:39,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414347796] [2022-11-25 18:12:39,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414347796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:39,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:39,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:12:39,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086165798] [2022-11-25 18:12:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:39,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:12:39,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:39,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:12:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:12:39,331 INFO L87 Difference]: Start difference. First operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 12 states, 12 states have (on average 63.25) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:48,251 INFO L93 Difference]: Finished difference Result 2490 states and 4835 transitions. [2022-11-25 18:12:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:12:48,255 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 63.25) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 759 [2022-11-25 18:12:48,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:48,286 INFO L225 Difference]: With dead ends: 2490 [2022-11-25 18:12:48,287 INFO L226 Difference]: Without dead ends: 1541 [2022-11-25 18:12:48,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:12:48,299 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 1608 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6526 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 7237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 6526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:48,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 964 Invalid, 7237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [711 Valid, 6526 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 18:12:48,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-11-25 18:12:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1541. [2022-11-25 18:12:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 1.490909090909091) internal successors, (2296), 1540 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2296 transitions. [2022-11-25 18:12:48,450 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2296 transitions. Word has length 759 [2022-11-25 18:12:48,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:48,454 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2296 transitions. [2022-11-25 18:12:48,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.25) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:48,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2296 transitions. [2022-11-25 18:12:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2022-11-25 18:12:48,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:48,486 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:12:48,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:12:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1616461493, now seen corresponding path program 1 times [2022-11-25 18:12:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:48,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722358468] [2022-11-25 18:12:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:48,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:55,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722358468] [2022-11-25 18:12:55,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722358468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:55,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:55,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:12:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619785899] [2022-11-25 18:12:55,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:55,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:12:55,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:55,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:12:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:12:55,485 INFO L87 Difference]: Start difference. First operand 1541 states and 2296 transitions. Second operand has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 12 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:06,778 INFO L93 Difference]: Finished difference Result 3865 states and 6804 transitions. [2022-11-25 18:13:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:13:06,779 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 12 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 774 [2022-11-25 18:13:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:06,797 INFO L225 Difference]: With dead ends: 3865 [2022-11-25 18:13:06,798 INFO L226 Difference]: Without dead ends: 3045 [2022-11-25 18:13:06,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:13:06,816 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 1544 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 10065 mSolverCounterSat, 1410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 11475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1410 IncrementalHoareTripleChecker+Valid, 10065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:06,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 910 Invalid, 11475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1410 Valid, 10065 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-11-25 18:13:06,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2022-11-25 18:13:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3045. [2022-11-25 18:13:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 3044 states have (on average 1.2598554533508541) internal successors, (3835), 3044 states have internal predecessors, (3835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:06,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 3835 transitions. [2022-11-25 18:13:06,933 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 3835 transitions. Word has length 774 [2022-11-25 18:13:06,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:06,936 INFO L495 AbstractCegarLoop]: Abstraction has 3045 states and 3835 transitions. [2022-11-25 18:13:06,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 12 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 3835 transitions. [2022-11-25 18:13:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2022-11-25 18:13:06,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:06,956 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:06,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:13:06,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:06,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1119496927, now seen corresponding path program 1 times [2022-11-25 18:13:06,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:06,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922530910] [2022-11-25 18:13:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:06,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:08,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:08,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922530910] [2022-11-25 18:13:08,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922530910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:08,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:08,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:08,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759400636] [2022-11-25 18:13:08,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:08,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:08,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:08,123 INFO L87 Difference]: Start difference. First operand 3045 states and 3835 transitions. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:12,528 INFO L93 Difference]: Finished difference Result 6187 states and 8513 transitions. [2022-11-25 18:13:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 781 [2022-11-25 18:13:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:12,548 INFO L225 Difference]: With dead ends: 6187 [2022-11-25 18:13:12,548 INFO L226 Difference]: Without dead ends: 3863 [2022-11-25 18:13:12,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:12,554 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 111 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 3473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:12,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 984 Invalid, 3473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 18:13:12,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2022-11-25 18:13:12,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3863. [2022-11-25 18:13:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3863 states, 3862 states have (on average 1.3353184878301398) internal successors, (5157), 3862 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 5157 transitions. [2022-11-25 18:13:12,640 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 5157 transitions. Word has length 781 [2022-11-25 18:13:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:12,643 INFO L495 AbstractCegarLoop]: Abstraction has 3863 states and 5157 transitions. [2022-11-25 18:13:12,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 5157 transitions. [2022-11-25 18:13:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2022-11-25 18:13:12,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:12,656 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:12,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:13:12,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:12,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:12,658 INFO L85 PathProgramCache]: Analyzing trace with hash 706169759, now seen corresponding path program 1 times [2022-11-25 18:13:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:12,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590642979] [2022-11-25 18:13:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:13:13,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:13,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590642979] [2022-11-25 18:13:13,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590642979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:13,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:13,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:13:13,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157373798] [2022-11-25 18:13:13,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:13,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:13,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:13,197 INFO L87 Difference]: Start difference. First operand 3863 states and 5157 transitions. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 2 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:17,622 INFO L93 Difference]: Finished difference Result 9459 states and 13327 transitions. [2022-11-25 18:13:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 2 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 786 [2022-11-25 18:13:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:17,641 INFO L225 Difference]: With dead ends: 9459 [2022-11-25 18:13:17,641 INFO L226 Difference]: Without dead ends: 6317 [2022-11-25 18:13:17,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:17,648 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 900 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 3383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:17,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 386 Invalid, 3383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 18:13:17,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2022-11-25 18:13:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6317. [2022-11-25 18:13:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6317 states, 6316 states have (on average 1.3590880303989867) internal successors, (8584), 6316 states have internal predecessors, (8584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6317 states to 6317 states and 8584 transitions. [2022-11-25 18:13:17,801 INFO L78 Accepts]: Start accepts. Automaton has 6317 states and 8584 transitions. Word has length 786 [2022-11-25 18:13:17,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:17,801 INFO L495 AbstractCegarLoop]: Abstraction has 6317 states and 8584 transitions. [2022-11-25 18:13:17,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.0) internal successors, (783), 2 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6317 states and 8584 transitions. [2022-11-25 18:13:17,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2022-11-25 18:13:17,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:17,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:17,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:13:17,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:17,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 981326647, now seen corresponding path program 1 times [2022-11-25 18:13:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:17,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804745482] [2022-11-25 18:13:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:17,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 18:13:18,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:18,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804745482] [2022-11-25 18:13:18,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804745482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:18,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:18,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:13:18,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958707760] [2022-11-25 18:13:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:18,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:18,500 INFO L87 Difference]: Start difference. First operand 6317 states and 8584 transitions. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 2 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:22,614 INFO L93 Difference]: Finished difference Result 15185 states and 21924 transitions. [2022-11-25 18:13:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:22,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 2 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 805 [2022-11-25 18:13:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:22,666 INFO L225 Difference]: With dead ends: 15185 [2022-11-25 18:13:22,666 INFO L226 Difference]: Without dead ends: 9589 [2022-11-25 18:13:22,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:22,677 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 877 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:22,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 625 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 18:13:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9589 states. [2022-11-25 18:13:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9589 to 9589. [2022-11-25 18:13:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 1.3235294117647058) internal successors, (12690), 9588 states have internal predecessors, (12690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 12690 transitions. [2022-11-25 18:13:22,940 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 12690 transitions. Word has length 805 [2022-11-25 18:13:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:22,946 INFO L495 AbstractCegarLoop]: Abstraction has 9589 states and 12690 transitions. [2022-11-25 18:13:22,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 2 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 12690 transitions. [2022-11-25 18:13:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2022-11-25 18:13:22,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:22,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:22,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:13:22,975 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:22,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 359111268, now seen corresponding path program 1 times [2022-11-25 18:13:22,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:22,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751491549] [2022-11-25 18:13:22,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:22,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 18:13:23,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:23,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751491549] [2022-11-25 18:13:23,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751491549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:23,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:23,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:13:23,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189850419] [2022-11-25 18:13:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:23,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:23,797 INFO L87 Difference]: Start difference. First operand 9589 states and 12690 transitions. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 2 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:28,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:28,269 INFO L93 Difference]: Finished difference Result 25001 states and 34242 transitions. [2022-11-25 18:13:28,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:28,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 2 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 863 [2022-11-25 18:13:28,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:28,305 INFO L225 Difference]: With dead ends: 25001 [2022-11-25 18:13:28,305 INFO L226 Difference]: Without dead ends: 16133 [2022-11-25 18:13:28,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:28,316 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 787 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:28,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 651 Invalid, 3462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 18:13:28,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16133 states. [2022-11-25 18:13:28,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16133 to 16133. [2022-11-25 18:13:28,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 16132 states have (on average 1.3406893131663773) internal successors, (21628), 16132 states have internal predecessors, (21628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 21628 transitions. [2022-11-25 18:13:28,624 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 21628 transitions. Word has length 863 [2022-11-25 18:13:28,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:28,625 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 21628 transitions. [2022-11-25 18:13:28,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 2 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 21628 transitions. [2022-11-25 18:13:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2022-11-25 18:13:28,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:28,662 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:28,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:13:28,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:28,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash -390434294, now seen corresponding path program 1 times [2022-11-25 18:13:28,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:28,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469361552] [2022-11-25 18:13:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:28,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-25 18:13:30,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:30,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469361552] [2022-11-25 18:13:30,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469361552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:30,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:30,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174732020] [2022-11-25 18:13:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:30,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:13:30,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:30,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:13:30,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:13:30,086 INFO L87 Difference]: Start difference. First operand 16133 states and 21628 transitions. Second operand has 4 states, 4 states have (on average 196.75) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:35,762 INFO L93 Difference]: Finished difference Result 38089 states and 51409 transitions. [2022-11-25 18:13:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:13:35,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 196.75) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 867 [2022-11-25 18:13:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:35,808 INFO L225 Difference]: With dead ends: 38089 [2022-11-25 18:13:35,808 INFO L226 Difference]: Without dead ends: 22677 [2022-11-25 18:13:35,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:13:35,828 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 1748 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5106 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 5610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 5106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:35,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 440 Invalid, 5610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 5106 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 18:13:35,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22677 states. [2022-11-25 18:13:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22677 to 22677. [2022-11-25 18:13:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22677 states, 22676 states have (on average 1.2690509790086435) internal successors, (28777), 22676 states have internal predecessors, (28777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22677 states to 22677 states and 28777 transitions. [2022-11-25 18:13:36,278 INFO L78 Accepts]: Start accepts. Automaton has 22677 states and 28777 transitions. Word has length 867 [2022-11-25 18:13:36,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:36,279 INFO L495 AbstractCegarLoop]: Abstraction has 22677 states and 28777 transitions. [2022-11-25 18:13:36,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 196.75) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 22677 states and 28777 transitions. [2022-11-25 18:13:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2022-11-25 18:13:36,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:36,323 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:36,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:13:36,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:36,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1662816550, now seen corresponding path program 1 times [2022-11-25 18:13:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:36,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126626392] [2022-11-25 18:13:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-25 18:13:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:36,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126626392] [2022-11-25 18:13:36,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126626392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:36,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:36,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541649749] [2022-11-25 18:13:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:36,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:36,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:36,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:36,823 INFO L87 Difference]: Start difference. First operand 22677 states and 28777 transitions. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:40,629 INFO L93 Difference]: Finished difference Result 62629 states and 80585 transitions. [2022-11-25 18:13:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:40,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 945 [2022-11-25 18:13:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:40,701 INFO L225 Difference]: With dead ends: 62629 [2022-11-25 18:13:40,702 INFO L226 Difference]: Without dead ends: 40673 [2022-11-25 18:13:40,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:40,722 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 801 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:40,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 735 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 18:13:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40673 states. [2022-11-25 18:13:41,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40673 to 40673. [2022-11-25 18:13:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40673 states, 40672 states have (on average 1.259318450039339) internal successors, (51219), 40672 states have internal predecessors, (51219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40673 states to 40673 states and 51219 transitions. [2022-11-25 18:13:41,484 INFO L78 Accepts]: Start accepts. Automaton has 40673 states and 51219 transitions. Word has length 945 [2022-11-25 18:13:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:41,485 INFO L495 AbstractCegarLoop]: Abstraction has 40673 states and 51219 transitions. [2022-11-25 18:13:41,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 40673 states and 51219 transitions. [2022-11-25 18:13:41,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2022-11-25 18:13:41,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:41,545 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:41,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:13:41,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1126139105, now seen corresponding path program 1 times [2022-11-25 18:13:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:41,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612229559] [2022-11-25 18:13:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-25 18:13:42,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:42,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612229559] [2022-11-25 18:13:42,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612229559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:42,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:42,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:42,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197389572] [2022-11-25 18:13:42,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:42,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:42,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:42,213 INFO L87 Difference]: Start difference. First operand 40673 states and 51219 transitions. Second operand has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:45,915 INFO L93 Difference]: Finished difference Result 80625 states and 101712 transitions. [2022-11-25 18:13:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:45,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 988 [2022-11-25 18:13:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:45,966 INFO L225 Difference]: With dead ends: 80625 [2022-11-25 18:13:45,966 INFO L226 Difference]: Without dead ends: 40673 [2022-11-25 18:13:45,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:45,989 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 839 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:45,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1062 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 18:13:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40673 states. [2022-11-25 18:13:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40673 to 40673. [2022-11-25 18:13:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40673 states, 40672 states have (on average 1.2280438630999213) internal successors, (49947), 40672 states have internal predecessors, (49947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40673 states to 40673 states and 49947 transitions. [2022-11-25 18:13:46,602 INFO L78 Accepts]: Start accepts. Automaton has 40673 states and 49947 transitions. Word has length 988 [2022-11-25 18:13:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:46,603 INFO L495 AbstractCegarLoop]: Abstraction has 40673 states and 49947 transitions. [2022-11-25 18:13:46,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 40673 states and 49947 transitions. [2022-11-25 18:13:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2022-11-25 18:13:46,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:46,663 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:46,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:13:46,664 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:46,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:46,665 INFO L85 PathProgramCache]: Analyzing trace with hash -860043577, now seen corresponding path program 1 times [2022-11-25 18:13:46,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:46,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943086343] [2022-11-25 18:13:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-11-25 18:13:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:47,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943086343] [2022-11-25 18:13:47,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943086343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:47,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:47,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:47,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709802286] [2022-11-25 18:13:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:47,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:47,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:47,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:47,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:47,879 INFO L87 Difference]: Start difference. First operand 40673 states and 49947 transitions. Second operand has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:52,248 INFO L93 Difference]: Finished difference Result 80625 states and 99168 transitions. [2022-11-25 18:13:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:52,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1085 [2022-11-25 18:13:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:52,290 INFO L225 Difference]: With dead ends: 80625 [2022-11-25 18:13:52,290 INFO L226 Difference]: Without dead ends: 40673 [2022-11-25 18:13:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:52,317 INFO L413 NwaCegarLoop]: 1397 mSDtfsCounter, 833 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 1006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:52,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1405 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 18:13:52,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40673 states. [2022-11-25 18:13:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40673 to 40673. [2022-11-25 18:13:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40673 states, 40672 states have (on average 1.1333349724626278) internal successors, (46095), 40672 states have internal predecessors, (46095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40673 states to 40673 states and 46095 transitions. [2022-11-25 18:13:52,814 INFO L78 Accepts]: Start accepts. Automaton has 40673 states and 46095 transitions. Word has length 1085 [2022-11-25 18:13:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:52,815 INFO L495 AbstractCegarLoop]: Abstraction has 40673 states and 46095 transitions. [2022-11-25 18:13:52,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 40673 states and 46095 transitions. [2022-11-25 18:13:53,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2022-11-25 18:13:53,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:53,002 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:53,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:13:53,003 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:53,004 INFO L85 PathProgramCache]: Analyzing trace with hash 810337812, now seen corresponding path program 1 times [2022-11-25 18:13:53,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:53,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341091072] [2022-11-25 18:13:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:13:53,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:53,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341091072] [2022-11-25 18:13:53,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341091072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:53,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:53,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:13:53,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883362061] [2022-11-25 18:13:53,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:53,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:13:53,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:53,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:13:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:53,696 INFO L87 Difference]: Start difference. First operand 40673 states and 46095 transitions. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:58,101 INFO L93 Difference]: Finished difference Result 109255 states and 124895 transitions. [2022-11-25 18:13:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:13:58,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1091 [2022-11-25 18:13:58,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:58,191 INFO L225 Difference]: With dead ends: 109255 [2022-11-25 18:13:58,191 INFO L226 Difference]: Without dead ends: 66031 [2022-11-25 18:13:58,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:13:58,224 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 971 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:58,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 474 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 18:13:58,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66031 states. [2022-11-25 18:13:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66031 to 55397. [2022-11-25 18:13:59,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55397 states, 55396 states have (on average 1.1318326232941007) internal successors, (62699), 55396 states have internal predecessors, (62699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:59,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55397 states to 55397 states and 62699 transitions. [2022-11-25 18:13:59,334 INFO L78 Accepts]: Start accepts. Automaton has 55397 states and 62699 transitions. Word has length 1091 [2022-11-25 18:13:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:59,334 INFO L495 AbstractCegarLoop]: Abstraction has 55397 states and 62699 transitions. [2022-11-25 18:13:59,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 55397 states and 62699 transitions. [2022-11-25 18:13:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2022-11-25 18:13:59,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:59,393 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:59,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:13:59,393 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:13:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:59,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1839282042, now seen corresponding path program 1 times [2022-11-25 18:13:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:59,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704242129] [2022-11-25 18:13:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:59,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 18:14:00,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:00,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704242129] [2022-11-25 18:14:00,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704242129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:00,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:00,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:14:00,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772653865] [2022-11-25 18:14:00,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:00,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:00,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:00,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:00,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:00,677 INFO L87 Difference]: Start difference. First operand 55397 states and 62699 transitions. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:04,646 INFO L93 Difference]: Finished difference Result 132977 states and 151343 transitions. [2022-11-25 18:14:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:04,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1110 [2022-11-25 18:14:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:04,710 INFO L225 Difference]: With dead ends: 132977 [2022-11-25 18:14:04,710 INFO L226 Difference]: Without dead ends: 78301 [2022-11-25 18:14:04,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:04,735 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 774 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:04,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 516 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 18:14:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78301 states. [2022-11-25 18:14:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78301 to 76665. [2022-11-25 18:14:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76665 states, 76664 states have (on average 1.1281957633308985) internal successors, (86492), 76664 states have internal predecessors, (86492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76665 states to 76665 states and 86492 transitions. [2022-11-25 18:14:05,902 INFO L78 Accepts]: Start accepts. Automaton has 76665 states and 86492 transitions. Word has length 1110 [2022-11-25 18:14:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:05,903 INFO L495 AbstractCegarLoop]: Abstraction has 76665 states and 86492 transitions. [2022-11-25 18:14:05,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 76665 states and 86492 transitions. [2022-11-25 18:14:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1254 [2022-11-25 18:14:06,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:06,251 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:06,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:14:06,252 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1416302360, now seen corresponding path program 1 times [2022-11-25 18:14:06,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:06,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53637076] [2022-11-25 18:14:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 842 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-25 18:14:07,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:07,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53637076] [2022-11-25 18:14:07,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53637076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:07,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:07,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:14:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887063133] [2022-11-25 18:14:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:07,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:07,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:07,257 INFO L87 Difference]: Start difference. First operand 76665 states and 86492 transitions. Second operand has 3 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:11,687 INFO L93 Difference]: Finished difference Result 176331 states and 200229 transitions. [2022-11-25 18:14:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:11,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1253 [2022-11-25 18:14:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:11,813 INFO L225 Difference]: With dead ends: 176331 [2022-11-25 18:14:11,813 INFO L226 Difference]: Without dead ends: 100387 [2022-11-25 18:14:11,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:11,848 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 843 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 1035 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1035 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:11,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 337 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1035 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 18:14:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100387 states. [2022-11-25 18:14:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100387 to 99569. [2022-11-25 18:14:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99569 states, 99568 states have (on average 1.1225695002410414) internal successors, (111772), 99568 states have internal predecessors, (111772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99569 states to 99569 states and 111772 transitions. [2022-11-25 18:14:13,219 INFO L78 Accepts]: Start accepts. Automaton has 99569 states and 111772 transitions. Word has length 1253 [2022-11-25 18:14:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:13,220 INFO L495 AbstractCegarLoop]: Abstraction has 99569 states and 111772 transitions. [2022-11-25 18:14:13,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 99569 states and 111772 transitions. [2022-11-25 18:14:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1302 [2022-11-25 18:14:13,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:13,542 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:13,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:14:13,542 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:13,543 INFO L85 PathProgramCache]: Analyzing trace with hash -975612552, now seen corresponding path program 1 times [2022-11-25 18:14:13,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:13,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356161748] [2022-11-25 18:14:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 919 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-25 18:14:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:14,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356161748] [2022-11-25 18:14:14,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356161748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:14,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:14,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:14:14,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638054082] [2022-11-25 18:14:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:14,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:14,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:14,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:14,668 INFO L87 Difference]: Start difference. First operand 99569 states and 111772 transitions. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 2 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:18,909 INFO L93 Difference]: Finished difference Result 218867 states and 246554 transitions. [2022-11-25 18:14:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:18,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 2 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1301 [2022-11-25 18:14:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:19,044 INFO L225 Difference]: With dead ends: 218867 [2022-11-25 18:14:19,044 INFO L226 Difference]: Without dead ends: 120019 [2022-11-25 18:14:19,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:19,090 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 750 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:19,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 325 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 18:14:19,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120019 states. [2022-11-25 18:14:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120019 to 118383. [2022-11-25 18:14:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118383 states, 118382 states have (on average 1.1040445337973679) internal successors, (130699), 118382 states have internal predecessors, (130699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:20,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118383 states to 118383 states and 130699 transitions. [2022-11-25 18:14:20,624 INFO L78 Accepts]: Start accepts. Automaton has 118383 states and 130699 transitions. Word has length 1301 [2022-11-25 18:14:20,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:20,625 INFO L495 AbstractCegarLoop]: Abstraction has 118383 states and 130699 transitions. [2022-11-25 18:14:20,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 2 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:20,625 INFO L276 IsEmpty]: Start isEmpty. Operand 118383 states and 130699 transitions. [2022-11-25 18:14:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1345 [2022-11-25 18:14:21,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:21,025 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:21,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:14:21,039 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:21,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash 330016907, now seen corresponding path program 1 times [2022-11-25 18:14:21,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:21,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133927010] [2022-11-25 18:14:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:21,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 1059 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-25 18:14:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:22,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133927010] [2022-11-25 18:14:22,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133927010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:22,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:22,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:14:22,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427124135] [2022-11-25 18:14:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:22,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:22,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:22,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:22,080 INFO L87 Difference]: Start difference. First operand 118383 states and 130699 transitions. Second operand has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:26,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:26,032 INFO L93 Difference]: Finished difference Result 236863 states and 261496 transitions. [2022-11-25 18:14:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1344 [2022-11-25 18:14:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:26,149 INFO L225 Difference]: With dead ends: 236863 [2022-11-25 18:14:26,149 INFO L226 Difference]: Without dead ends: 118383 [2022-11-25 18:14:26,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:26,195 INFO L413 NwaCegarLoop]: 1309 mSDtfsCounter, 821 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:26,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1317 Invalid, 2838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 18:14:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118383 states. [2022-11-25 18:14:27,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118383 to 116747. [2022-11-25 18:14:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116747 states, 116746 states have (on average 1.0857074332311172) internal successors, (126752), 116746 states have internal predecessors, (126752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116747 states to 116747 states and 126752 transitions. [2022-11-25 18:14:28,058 INFO L78 Accepts]: Start accepts. Automaton has 116747 states and 126752 transitions. Word has length 1344 [2022-11-25 18:14:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:28,059 INFO L495 AbstractCegarLoop]: Abstraction has 116747 states and 126752 transitions. [2022-11-25 18:14:28,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 116747 states and 126752 transitions. [2022-11-25 18:14:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1448 [2022-11-25 18:14:28,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:28,521 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 18:14:28,521 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:28,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1773659384, now seen corresponding path program 1 times [2022-11-25 18:14:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:28,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487021262] [2022-11-25 18:14:28,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 1354 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-11-25 18:14:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:30,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487021262] [2022-11-25 18:14:30,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487021262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:30,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:30,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:14:30,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931644346] [2022-11-25 18:14:30,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:30,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:30,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:30,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:30,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:30,195 INFO L87 Difference]: Start difference. First operand 116747 states and 126752 transitions. Second operand has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:33,804 INFO L93 Difference]: Finished difference Result 234409 states and 254450 transitions. [2022-11-25 18:14:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1447 [2022-11-25 18:14:33,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:34,141 INFO L225 Difference]: With dead ends: 234409 [2022-11-25 18:14:34,141 INFO L226 Difference]: Without dead ends: 118383 [2022-11-25 18:14:34,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:34,199 INFO L413 NwaCegarLoop]: 1435 mSDtfsCounter, 742 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:34,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1444 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 18:14:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118383 states. [2022-11-25 18:14:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118383 to 117565. [2022-11-25 18:14:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117565 states, 117564 states have (on average 1.0830186111394644) internal successors, (127324), 117564 states have internal predecessors, (127324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117565 states to 117565 states and 127324 transitions. [2022-11-25 18:14:35,894 INFO L78 Accepts]: Start accepts. Automaton has 117565 states and 127324 transitions. Word has length 1447 [2022-11-25 18:14:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:35,895 INFO L495 AbstractCegarLoop]: Abstraction has 117565 states and 127324 transitions. [2022-11-25 18:14:35,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand 117565 states and 127324 transitions. [2022-11-25 18:14:36,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1561 [2022-11-25 18:14:36,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:36,007 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:36,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:14:36,008 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:36,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:36,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1397755738, now seen corresponding path program 1 times [2022-11-25 18:14:36,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:36,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421125099] [2022-11-25 18:14:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:36,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 1035 proven. 527 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-25 18:14:40,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:40,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421125099] [2022-11-25 18:14:40,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421125099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:14:40,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833906934] [2022-11-25 18:14:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:40,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:14:40,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:14:40,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:14:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:14:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:41,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:14:41,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 1219 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-11-25 18:14:41,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:14:41,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833906934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:41,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:14:41,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 18:14:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697873827] [2022-11-25 18:14:41,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:41,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:41,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:41,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:41,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:14:41,990 INFO L87 Difference]: Start difference. First operand 117565 states and 127324 transitions. Second operand has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:46,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:46,531 INFO L93 Difference]: Finished difference Result 236863 states and 256448 transitions. [2022-11-25 18:14:46,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:46,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1560 [2022-11-25 18:14:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:46,662 INFO L225 Difference]: With dead ends: 236863 [2022-11-25 18:14:46,663 INFO L226 Difference]: Without dead ends: 120019 [2022-11-25 18:14:46,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1565 GetRequests, 1560 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:14:46,689 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 695 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:46,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1379 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 18:14:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120019 states. [2022-11-25 18:14:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120019 to 119201. [2022-11-25 18:14:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119201 states, 119200 states have (on average 1.0693372483221477) internal successors, (127465), 119200 states have internal predecessors, (127465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119201 states to 119201 states and 127465 transitions. [2022-11-25 18:14:48,393 INFO L78 Accepts]: Start accepts. Automaton has 119201 states and 127465 transitions. Word has length 1560 [2022-11-25 18:14:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:48,394 INFO L495 AbstractCegarLoop]: Abstraction has 119201 states and 127465 transitions. [2022-11-25 18:14:48,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 119201 states and 127465 transitions. [2022-11-25 18:14:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1588 [2022-11-25 18:14:48,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:48,494 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:48,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 18:14:48,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26877942-1137-499f-b737-485e54fe794f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 18:14:48,695 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:48,696 INFO L85 PathProgramCache]: Analyzing trace with hash -52024600, now seen corresponding path program 1 times [2022-11-25 18:14:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:48,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057721558] [2022-11-25 18:14:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:48,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 906 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-11-25 18:14:50,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057721558] [2022-11-25 18:14:50,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057721558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:50,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:50,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:14:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218307719] [2022-11-25 18:14:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:50,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:14:50,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:50,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:14:50,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:14:50,913 INFO L87 Difference]: Start difference. First operand 119201 states and 127465 transitions. Second operand has 4 states, 4 states have (on average 348.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:56,113 INFO L93 Difference]: Finished difference Result 238499 states and 255028 transitions. [2022-11-25 18:14:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:14:56,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 348.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1587 [2022-11-25 18:14:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:56,231 INFO L225 Difference]: With dead ends: 238499 [2022-11-25 18:14:56,231 INFO L226 Difference]: Without dead ends: 119201 [2022-11-25 18:14:56,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:14:56,280 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1119 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 4069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:56,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 480 Invalid, 4069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 18:14:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119201 states. [2022-11-25 18:14:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119201 to 119201. [2022-11-25 18:14:58,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119201 states, 119200 states have (on average 1.0211073825503356) internal successors, (121716), 119200 states have internal predecessors, (121716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119201 states to 119201 states and 121716 transitions. [2022-11-25 18:14:58,329 INFO L78 Accepts]: Start accepts. Automaton has 119201 states and 121716 transitions. Word has length 1587 [2022-11-25 18:14:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:58,330 INFO L495 AbstractCegarLoop]: Abstraction has 119201 states and 121716 transitions. [2022-11-25 18:14:58,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 119201 states and 121716 transitions. [2022-11-25 18:14:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1696 [2022-11-25 18:14:58,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:58,448 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:58,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:14:58,448 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:14:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1524585910, now seen corresponding path program 1 times [2022-11-25 18:14:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:58,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291790469] [2022-11-25 18:14:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:15:01,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1282 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-25 18:15:01,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:15:01,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291790469] [2022-11-25 18:15:01,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291790469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:15:01,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:15:01,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:15:01,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231911303] [2022-11-25 18:15:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:15:01,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:15:01,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:15:01,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:15:01,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:15:01,012 INFO L87 Difference]: Start difference. First operand 119201 states and 121716 transitions. Second operand has 4 states, 4 states have (on average 374.5) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:15:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:15:05,448 INFO L93 Difference]: Finished difference Result 238499 states and 243527 transitions. [2022-11-25 18:15:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:15:05,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 374.5) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1695 [2022-11-25 18:15:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:15:05,577 INFO L225 Difference]: With dead ends: 238499 [2022-11-25 18:15:05,577 INFO L226 Difference]: Without dead ends: 119201 [2022-11-25 18:15:05,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:15:05,608 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 951 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3690 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:15:05,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 182 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3690 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 18:15:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119201 states. [2022-11-25 18:15:06,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119201 to 119201. [2022-11-25 18:15:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119201 states, 119200 states have (on average 1.0209228187919464) internal successors, (121694), 119200 states have internal predecessors, (121694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:15:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119201 states to 119201 states and 121694 transitions. [2022-11-25 18:15:06,965 INFO L78 Accepts]: Start accepts. Automaton has 119201 states and 121694 transitions. Word has length 1695 [2022-11-25 18:15:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:15:06,965 INFO L495 AbstractCegarLoop]: Abstraction has 119201 states and 121694 transitions. [2022-11-25 18:15:06,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 374.5) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:15:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 119201 states and 121694 transitions. [2022-11-25 18:15:07,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2022-11-25 18:15:07,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:15:07,030 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:15:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 18:15:07,030 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:15:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:15:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1506922644, now seen corresponding path program 1 times [2022-11-25 18:15:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:15:07,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309269579] [2022-11-25 18:15:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:15:07,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:15:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat