./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash e06474b5b375934522ecdd69dd223d4be0b8939557fa13673cd9512102447ff6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:08:22,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:08:22,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:08:22,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:08:22,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:08:22,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:08:22,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:08:22,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:08:22,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:08:22,667 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:08:22,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:08:22,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:08:22,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:08:22,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:08:22,669 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:08:22,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:08:22,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:08:22,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:08:22,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:08:22,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:08:22,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:08:22,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:22,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:08:22,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:22,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:22,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:08:22,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:22,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:08:22,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:22,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:22,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:08:22,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:08:22,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:08:22,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:08:22,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:08:22,675 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e06474b5b375934522ecdd69dd223d4be0b8939557fa13673cd9512102447ff6 [2024-11-24 01:08:22,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:08:23,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:08:23,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:08:23,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:08:23,017 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:08:23,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c [2024-11-24 01:08:25,915 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/data/21b47157f/ae99eb3df4c14ffe9a439f53545b930b/FLAGb4430cc10 [2024-11-24 01:08:26,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:08:26,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c [2024-11-24 01:08:26,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/data/21b47157f/ae99eb3df4c14ffe9a439f53545b930b/FLAGb4430cc10 [2024-11-24 01:08:26,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/data/21b47157f/ae99eb3df4c14ffe9a439f53545b930b [2024-11-24 01:08:26,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:08:26,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:08:26,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:08:26,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:08:26,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:08:26,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:08:26" (1/1) ... [2024-11-24 01:08:26,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fde38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:26, skipping insertion in model container [2024-11-24 01:08:26,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:08:26" (1/1) ... [2024-11-24 01:08:26,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:08:26,651 WARN L250 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_2122921d-cd43-4174-b546-9d095fd3f6b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c[1270,1283] [2024-11-24 01:08:27,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:08:27,069 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:08:27,079 WARN L250 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_2122921d-cd43-4174-b546-9d095fd3f6b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c[1270,1283] [2024-11-24 01:08:27,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:08:27,319 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:08:27,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27 WrapperNode [2024-11-24 01:08:27,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:08:27,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:08:27,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:08:27,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:08:27,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:27,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:27,850 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3630 [2024-11-24 01:08:27,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:08:27,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:08:27,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:08:27,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:08:27,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:27,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,232 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:08:28,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:08:28,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:08:28,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:08:28,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:08:28,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (1/1) ... [2024-11-24 01:08:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:28,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:08:28,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:08:28,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:08:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:08:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:08:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:08:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:08:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:08:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:08:29,110 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:08:29,112 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:08:35,091 INFO L? ?]: Removed 1956 outVars from TransFormulas that were not future-live. [2024-11-24 01:08:35,091 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:08:35,139 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:08:35,139 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:08:35,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:08:35 BoogieIcfgContainer [2024-11-24 01:08:35,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:08:35,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:08:35,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:08:35,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:08:35,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:08:26" (1/3) ... [2024-11-24 01:08:35,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1d1ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:08:35, skipping insertion in model container [2024-11-24 01:08:35,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:08:27" (2/3) ... [2024-11-24 01:08:35,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1d1ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:08:35, skipping insertion in model container [2024-11-24 01:08:35,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:08:35" (3/3) ... [2024-11-24 01:08:35,153 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c [2024-11-24 01:08:35,168 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:08:35,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n2_w32_d8_e0.c that has 2 procedures, 1160 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:08:35,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:08:35,291 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4533c0e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:08:35,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:08:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 1160 states, 1150 states have (on average 1.4956521739130435) internal successors, (1720), 1151 states have internal predecessors, (1720), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:35,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-24 01:08:35,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:35,351 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:35,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:35,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash -291025717, now seen corresponding path program 1 times [2024-11-24 01:08:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412887409] [2024-11-24 01:08:35,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:35,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:08:36,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:36,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412887409] [2024-11-24 01:08:36,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412887409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:08:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086928093] [2024-11-24 01:08:36,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:36,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:08:36,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:08:36,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:08:36,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:08:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:37,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:08:37,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:08:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:08:37,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:08:37,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086928093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:37,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:08:37,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:08:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588927241] [2024-11-24 01:08:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:37,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:08:37,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:37,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:08:37,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:08:37,641 INFO L87 Difference]: Start difference. First operand has 1160 states, 1150 states have (on average 1.4956521739130435) internal successors, (1720), 1151 states have internal predecessors, (1720), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:08:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:37,808 INFO L93 Difference]: Finished difference Result 2199 states and 3297 transitions. [2024-11-24 01:08:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:08:37,814 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 455 [2024-11-24 01:08:37,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:37,840 INFO L225 Difference]: With dead ends: 2199 [2024-11-24 01:08:37,840 INFO L226 Difference]: Without dead ends: 1157 [2024-11-24 01:08:37,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:08:37,858 INFO L435 NwaCegarLoop]: 1729 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:37,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:08:37,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-24 01:08:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2024-11-24 01:08:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1148 states have (on average 1.4939024390243902) internal successors, (1715), 1148 states have internal predecessors, (1715), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1729 transitions. [2024-11-24 01:08:38,063 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1729 transitions. Word has length 455 [2024-11-24 01:08:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:38,064 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1729 transitions. [2024-11-24 01:08:38,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:08:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1729 transitions. [2024-11-24 01:08:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-24 01:08:38,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:38,088 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:38,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:08:38,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:08:38,293 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:38,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:38,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1752315011, now seen corresponding path program 1 times [2024-11-24 01:08:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:38,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570723508] [2024-11-24 01:08:38,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:38,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:41,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570723508] [2024-11-24 01:08:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570723508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:41,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:41,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:08:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639677225] [2024-11-24 01:08:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:41,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:08:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:41,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:08:41,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:41,718 INFO L87 Difference]: Start difference. First operand 1157 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:41,836 INFO L93 Difference]: Finished difference Result 1161 states and 1733 transitions. [2024-11-24 01:08:41,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:41,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 455 [2024-11-24 01:08:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:41,848 INFO L225 Difference]: With dead ends: 1161 [2024-11-24 01:08:41,852 INFO L226 Difference]: Without dead ends: 1159 [2024-11-24 01:08:41,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:41,854 INFO L435 NwaCegarLoop]: 1727 mSDtfsCounter, 0 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:41,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5175 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:08:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-24 01:08:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2024-11-24 01:08:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1150 states have (on average 1.4930434782608695) internal successors, (1717), 1150 states have internal predecessors, (1717), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:41,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1731 transitions. [2024-11-24 01:08:41,908 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1731 transitions. Word has length 455 [2024-11-24 01:08:41,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:41,911 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1731 transitions. [2024-11-24 01:08:41,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1731 transitions. [2024-11-24 01:08:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:08:41,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:41,926 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:41,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:08:41,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:41,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1514507326, now seen corresponding path program 1 times [2024-11-24 01:08:41,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:41,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902941843] [2024-11-24 01:08:41,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:41,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:43,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:43,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902941843] [2024-11-24 01:08:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902941843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:43,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:08:43,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840078678] [2024-11-24 01:08:43,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:43,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:08:43,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:43,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:08:43,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:43,710 INFO L87 Difference]: Start difference. First operand 1159 states and 1731 transitions. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:44,731 INFO L93 Difference]: Finished difference Result 3119 states and 4663 transitions. [2024-11-24 01:08:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:08:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 456 [2024-11-24 01:08:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:44,739 INFO L225 Difference]: With dead ends: 3119 [2024-11-24 01:08:44,739 INFO L226 Difference]: Without dead ends: 1159 [2024-11-24 01:08:44,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:08:44,746 INFO L435 NwaCegarLoop]: 1825 mSDtfsCounter, 3744 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 5087 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:44,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 5087 Invalid, 545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:08:44,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-24 01:08:44,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2024-11-24 01:08:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1150 states have (on average 1.4921739130434784) internal successors, (1716), 1150 states have internal predecessors, (1716), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1730 transitions. [2024-11-24 01:08:44,799 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1730 transitions. Word has length 456 [2024-11-24 01:08:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:44,801 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1730 transitions. [2024-11-24 01:08:44,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1730 transitions. [2024-11-24 01:08:44,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:08:44,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:44,812 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:44,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:08:44,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:44,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:44,813 INFO L85 PathProgramCache]: Analyzing trace with hash 433256126, now seen corresponding path program 1 times [2024-11-24 01:08:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:44,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980912768] [2024-11-24 01:08:44,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:46,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980912768] [2024-11-24 01:08:46,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980912768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:46,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:46,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:08:46,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058492658] [2024-11-24 01:08:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:46,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:08:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:46,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:08:46,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:46,284 INFO L87 Difference]: Start difference. First operand 1159 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:47,054 INFO L93 Difference]: Finished difference Result 2200 states and 3284 transitions. [2024-11-24 01:08:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:47,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 457 [2024-11-24 01:08:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:47,060 INFO L225 Difference]: With dead ends: 2200 [2024-11-24 01:08:47,061 INFO L226 Difference]: Without dead ends: 1159 [2024-11-24 01:08:47,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:08:47,063 INFO L435 NwaCegarLoop]: 1415 mSDtfsCounter, 1576 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:47,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 2843 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:08:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-24 01:08:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2024-11-24 01:08:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1150 states have (on average 1.491304347826087) internal successors, (1715), 1150 states have internal predecessors, (1715), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1729 transitions. [2024-11-24 01:08:47,103 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1729 transitions. Word has length 457 [2024-11-24 01:08:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:47,104 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1729 transitions. [2024-11-24 01:08:47,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1729 transitions. [2024-11-24 01:08:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-24 01:08:47,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:47,117 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:47,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:08:47,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:47,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1515922765, now seen corresponding path program 1 times [2024-11-24 01:08:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308099081] [2024-11-24 01:08:47,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:48,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:48,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308099081] [2024-11-24 01:08:48,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308099081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:48,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:48,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:08:48,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611602749] [2024-11-24 01:08:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:48,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:08:48,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:48,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:08:48,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:48,581 INFO L87 Difference]: Start difference. First operand 1159 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:48,673 INFO L93 Difference]: Finished difference Result 2202 states and 3285 transitions. [2024-11-24 01:08:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 458 [2024-11-24 01:08:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:48,680 INFO L225 Difference]: With dead ends: 2202 [2024-11-24 01:08:48,680 INFO L226 Difference]: Without dead ends: 1161 [2024-11-24 01:08:48,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:48,684 INFO L435 NwaCegarLoop]: 1725 mSDtfsCounter, 0 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:48,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5165 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:08:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-24 01:08:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2024-11-24 01:08:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1152 states have (on average 1.4904513888888888) internal successors, (1717), 1152 states have internal predecessors, (1717), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1731 transitions. [2024-11-24 01:08:48,719 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1731 transitions. Word has length 458 [2024-11-24 01:08:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:48,720 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1731 transitions. [2024-11-24 01:08:48,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:48,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1731 transitions. [2024-11-24 01:08:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-24 01:08:48,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:48,729 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:48,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:08:48,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:48,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash -846928735, now seen corresponding path program 1 times [2024-11-24 01:08:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:48,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527418055] [2024-11-24 01:08:48,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:48,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527418055] [2024-11-24 01:08:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527418055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:50,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:50,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:08:50,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558595128] [2024-11-24 01:08:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:50,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:08:50,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:50,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:08:50,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:50,320 INFO L87 Difference]: Start difference. First operand 1161 states and 1731 transitions. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:50,533 INFO L93 Difference]: Finished difference Result 2203 states and 3285 transitions. [2024-11-24 01:08:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:50,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 459 [2024-11-24 01:08:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:50,539 INFO L225 Difference]: With dead ends: 2203 [2024-11-24 01:08:50,540 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:50,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:50,542 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 1427 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:50,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 3348 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4891398783666376) internal successors, (1714), 1151 states have internal predecessors, (1714), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1728 transitions. [2024-11-24 01:08:50,642 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1728 transitions. Word has length 459 [2024-11-24 01:08:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:50,643 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1728 transitions. [2024-11-24 01:08:50,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1728 transitions. [2024-11-24 01:08:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-24 01:08:50,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:50,655 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:50,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:08:50,655 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:50,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:50,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1906011784, now seen corresponding path program 1 times [2024-11-24 01:08:50,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:50,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644518796] [2024-11-24 01:08:50,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:50,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:51,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644518796] [2024-11-24 01:08:51,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644518796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:51,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:51,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:08:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613308701] [2024-11-24 01:08:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:51,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:08:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:51,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:08:51,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:51,854 INFO L87 Difference]: Start difference. First operand 1160 states and 1728 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:52,060 INFO L93 Difference]: Finished difference Result 2466 states and 3674 transitions. [2024-11-24 01:08:52,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:08:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 460 [2024-11-24 01:08:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:52,068 INFO L225 Difference]: With dead ends: 2466 [2024-11-24 01:08:52,068 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:52,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:08:52,071 INFO L435 NwaCegarLoop]: 1712 mSDtfsCounter, 2209 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 5105 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:52,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 5105 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4882710686359688) internal successors, (1713), 1151 states have internal predecessors, (1713), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1727 transitions. [2024-11-24 01:08:52,109 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1727 transitions. Word has length 460 [2024-11-24 01:08:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:52,110 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1727 transitions. [2024-11-24 01:08:52,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1727 transitions. [2024-11-24 01:08:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-24 01:08:52,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:52,119 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:52,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:08:52,119 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:52,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1352383871, now seen corresponding path program 1 times [2024-11-24 01:08:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:52,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410378703] [2024-11-24 01:08:52,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:53,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410378703] [2024-11-24 01:08:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410378703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:53,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:53,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:08:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627983904] [2024-11-24 01:08:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:53,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:08:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:53,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:08:53,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:53,399 INFO L87 Difference]: Start difference. First operand 1160 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:53,609 INFO L93 Difference]: Finished difference Result 2202 states and 3278 transitions. [2024-11-24 01:08:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:53,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 461 [2024-11-24 01:08:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:53,615 INFO L225 Difference]: With dead ends: 2202 [2024-11-24 01:08:53,615 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:53,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:08:53,617 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 1703 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:53,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 3359 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4874022589052998) internal successors, (1712), 1151 states have internal predecessors, (1712), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1726 transitions. [2024-11-24 01:08:53,652 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1726 transitions. Word has length 461 [2024-11-24 01:08:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:53,654 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1726 transitions. [2024-11-24 01:08:53,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:53,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1726 transitions. [2024-11-24 01:08:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-24 01:08:53,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:53,659 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:53,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:08:53,659 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:53,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:53,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2071420575, now seen corresponding path program 1 times [2024-11-24 01:08:53,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:53,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181504362] [2024-11-24 01:08:53,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:53,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:54,681 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:54,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181504362] [2024-11-24 01:08:54,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181504362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:54,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:54,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:08:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20167386] [2024-11-24 01:08:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:54,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:08:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:54,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:08:54,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:54,687 INFO L87 Difference]: Start difference. First operand 1160 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:54,892 INFO L93 Difference]: Finished difference Result 2202 states and 3276 transitions. [2024-11-24 01:08:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:54,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 462 [2024-11-24 01:08:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:54,899 INFO L225 Difference]: With dead ends: 2202 [2024-11-24 01:08:54,900 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:54,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:08:54,904 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 2991 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:54,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 3348 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:54,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4865334491746307) internal successors, (1711), 1151 states have internal predecessors, (1711), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1725 transitions. [2024-11-24 01:08:54,948 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1725 transitions. Word has length 462 [2024-11-24 01:08:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:54,949 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1725 transitions. [2024-11-24 01:08:54,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1725 transitions. [2024-11-24 01:08:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-24 01:08:54,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:54,955 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:54,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:08:54,955 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:54,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1066188641, now seen corresponding path program 1 times [2024-11-24 01:08:54,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:54,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738177395] [2024-11-24 01:08:54,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:57,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:57,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738177395] [2024-11-24 01:08:57,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738177395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:57,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:57,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:08:57,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555457096] [2024-11-24 01:08:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:57,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:08:57,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:57,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:08:57,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:57,239 INFO L87 Difference]: Start difference. First operand 1160 states and 1725 transitions. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:57,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:57,424 INFO L93 Difference]: Finished difference Result 2202 states and 3274 transitions. [2024-11-24 01:08:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:57,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 463 [2024-11-24 01:08:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:57,430 INFO L225 Difference]: With dead ends: 2202 [2024-11-24 01:08:57,430 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:57,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:57,433 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 1560 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:57,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 3348 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:57,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4856646394439619) internal successors, (1710), 1151 states have internal predecessors, (1710), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:57,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1724 transitions. [2024-11-24 01:08:57,469 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1724 transitions. Word has length 463 [2024-11-24 01:08:57,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:57,469 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1724 transitions. [2024-11-24 01:08:57,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:57,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1724 transitions. [2024-11-24 01:08:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-24 01:08:57,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:57,474 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:57,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:08:57,475 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:57,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1220110811, now seen corresponding path program 1 times [2024-11-24 01:08:57,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:57,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11588119] [2024-11-24 01:08:57,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:57,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:08:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11588119] [2024-11-24 01:08:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11588119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:59,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:59,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:08:59,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449876125] [2024-11-24 01:08:59,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:59,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:08:59,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:59,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:08:59,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:08:59,622 INFO L87 Difference]: Start difference. First operand 1160 states and 1724 transitions. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:59,814 INFO L93 Difference]: Finished difference Result 2202 states and 3272 transitions. [2024-11-24 01:08:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:08:59,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 464 [2024-11-24 01:08:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:59,821 INFO L225 Difference]: With dead ends: 2202 [2024-11-24 01:08:59,821 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 01:08:59,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:08:59,824 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 1421 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:59,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 3348 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:59,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 01:08:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2024-11-24 01:08:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1151 states have (on average 1.4847958297132928) internal successors, (1709), 1151 states have internal predecessors, (1709), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 01:08:59,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1723 transitions. [2024-11-24 01:08:59,859 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1723 transitions. Word has length 464 [2024-11-24 01:08:59,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:59,860 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1723 transitions. [2024-11-24 01:08:59,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:08:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1723 transitions. [2024-11-24 01:08:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-24 01:08:59,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:59,865 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:59,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:08:59,865 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:59,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash 237489440, now seen corresponding path program 1 times [2024-11-24 01:08:59,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:59,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799786785] [2024-11-24 01:08:59,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:59,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:02,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:02,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799786785] [2024-11-24 01:09:02,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799786785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:02,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:02,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:09:02,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772298163] [2024-11-24 01:09:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:02,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:09:02,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:02,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:09:02,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:02,274 INFO L87 Difference]: Start difference. First operand 1160 states and 1723 transitions. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:02,967 INFO L93 Difference]: Finished difference Result 3329 states and 4946 transitions. [2024-11-24 01:09:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:02,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 465 [2024-11-24 01:09:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:02,977 INFO L225 Difference]: With dead ends: 3329 [2024-11-24 01:09:02,977 INFO L226 Difference]: Without dead ends: 2187 [2024-11-24 01:09:02,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:02,981 INFO L435 NwaCegarLoop]: 1787 mSDtfsCounter, 1596 mSDsluCounter, 6703 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 8490 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:02,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 8490 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:09:02,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-11-24 01:09:03,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1219. [2024-11-24 01:09:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1208 states have (on average 1.4834437086092715) internal successors, (1792), 1208 states have internal predecessors, (1792), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1810 transitions. [2024-11-24 01:09:03,027 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1810 transitions. Word has length 465 [2024-11-24 01:09:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:03,028 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1810 transitions. [2024-11-24 01:09:03,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1810 transitions. [2024-11-24 01:09:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-24 01:09:03,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:03,033 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:03,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:09:03,034 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:03,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1901928148, now seen corresponding path program 1 times [2024-11-24 01:09:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:03,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681520915] [2024-11-24 01:09:03,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:06,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681520915] [2024-11-24 01:09:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681520915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:06,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:06,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:09:06,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448578955] [2024-11-24 01:09:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:06,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:09:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:06,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:09:06,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:06,169 INFO L87 Difference]: Start difference. First operand 1219 states and 1810 transitions. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:07,690 INFO L93 Difference]: Finished difference Result 3229 states and 4796 transitions. [2024-11-24 01:09:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:07,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 466 [2024-11-24 01:09:07,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:07,699 INFO L225 Difference]: With dead ends: 3229 [2024-11-24 01:09:07,700 INFO L226 Difference]: Without dead ends: 2187 [2024-11-24 01:09:07,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:07,703 INFO L435 NwaCegarLoop]: 1418 mSDtfsCounter, 4605 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:07,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 5621 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:09:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-11-24 01:09:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1220. [2024-11-24 01:09:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1209 states have (on average 1.4830438378825475) internal successors, (1793), 1209 states have internal predecessors, (1793), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1811 transitions. [2024-11-24 01:09:07,758 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1811 transitions. Word has length 466 [2024-11-24 01:09:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:07,758 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1811 transitions. [2024-11-24 01:09:07,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1811 transitions. [2024-11-24 01:09:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-24 01:09:07,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:07,764 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:07,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:09:07,765 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:07,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash 694888460, now seen corresponding path program 1 times [2024-11-24 01:09:07,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:07,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527556712] [2024-11-24 01:09:07,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:07,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:09,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:09,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527556712] [2024-11-24 01:09:09,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527556712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:09,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:09,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:09,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275652516] [2024-11-24 01:09:09,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:09,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:09,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:09,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:09,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:09,451 INFO L87 Difference]: Start difference. First operand 1220 states and 1811 transitions. Second operand has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:09,932 INFO L93 Difference]: Finished difference Result 2362 states and 3507 transitions. [2024-11-24 01:09:09,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 466 [2024-11-24 01:09:09,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:09,937 INFO L225 Difference]: With dead ends: 2362 [2024-11-24 01:09:09,938 INFO L226 Difference]: Without dead ends: 1220 [2024-11-24 01:09:09,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:09,940 INFO L435 NwaCegarLoop]: 1842 mSDtfsCounter, 70 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:09,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 5106 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:09:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-24 01:09:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2024-11-24 01:09:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1209 states have (on average 1.4822167080231596) internal successors, (1792), 1209 states have internal predecessors, (1792), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1810 transitions. [2024-11-24 01:09:09,969 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1810 transitions. Word has length 466 [2024-11-24 01:09:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:09,969 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1810 transitions. [2024-11-24 01:09:09,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:09,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1810 transitions. [2024-11-24 01:09:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-24 01:09:09,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:09,973 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:09,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:09:09,974 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:09,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1696187005, now seen corresponding path program 1 times [2024-11-24 01:09:09,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:09,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585167030] [2024-11-24 01:09:09,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:12,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:12,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585167030] [2024-11-24 01:09:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585167030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:12,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:12,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:09:12,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761583006] [2024-11-24 01:09:12,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:12,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:09:12,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:12,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:09:12,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:12,609 INFO L87 Difference]: Start difference. First operand 1220 states and 1810 transitions. Second operand has 7 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:12,854 INFO L93 Difference]: Finished difference Result 2270 states and 3368 transitions. [2024-11-24 01:09:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:09:12,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 467 [2024-11-24 01:09:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:12,861 INFO L225 Difference]: With dead ends: 2270 [2024-11-24 01:09:12,861 INFO L226 Difference]: Without dead ends: 1228 [2024-11-24 01:09:12,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:12,864 INFO L435 NwaCegarLoop]: 1695 mSDtfsCounter, 1614 mSDsluCounter, 6736 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:12,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 8431 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:09:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-24 01:09:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1225. [2024-11-24 01:09:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1214 states have (on average 1.4810543657331137) internal successors, (1798), 1214 states have internal predecessors, (1798), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1816 transitions. [2024-11-24 01:09:12,898 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1816 transitions. Word has length 467 [2024-11-24 01:09:12,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:12,899 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1816 transitions. [2024-11-24 01:09:12,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1816 transitions. [2024-11-24 01:09:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-24 01:09:12,904 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:12,904 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:12,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:09:12,904 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:12,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1582757270, now seen corresponding path program 1 times [2024-11-24 01:09:12,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:12,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384210283] [2024-11-24 01:09:12,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:13,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:13,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384210283] [2024-11-24 01:09:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384210283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:13,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:13,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:09:13,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023219873] [2024-11-24 01:09:13,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:13,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:09:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:13,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:09:13,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:13,855 INFO L87 Difference]: Start difference. First operand 1225 states and 1816 transitions. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:15,003 INFO L93 Difference]: Finished difference Result 2276 states and 3374 transitions. [2024-11-24 01:09:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:15,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 468 [2024-11-24 01:09:15,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:15,009 INFO L225 Difference]: With dead ends: 2276 [2024-11-24 01:09:15,009 INFO L226 Difference]: Without dead ends: 1229 [2024-11-24 01:09:15,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:15,011 INFO L435 NwaCegarLoop]: 1418 mSDtfsCounter, 1680 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 5652 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:15,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 5652 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:09:15,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-24 01:09:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2024-11-24 01:09:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1216 states have (on average 1.480263157894737) internal successors, (1800), 1216 states have internal predecessors, (1800), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1818 transitions. [2024-11-24 01:09:15,039 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1818 transitions. Word has length 468 [2024-11-24 01:09:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:15,040 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1818 transitions. [2024-11-24 01:09:15,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1818 transitions. [2024-11-24 01:09:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-24 01:09:15,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:15,044 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:15,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:09:15,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:15,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash 273775204, now seen corresponding path program 1 times [2024-11-24 01:09:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590790156] [2024-11-24 01:09:15,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:15,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:15,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:15,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590790156] [2024-11-24 01:09:15,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590790156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:15,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:15,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:15,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718985687] [2024-11-24 01:09:15,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:15,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:15,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:15,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:15,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:15,948 INFO L87 Difference]: Start difference. First operand 1227 states and 1818 transitions. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:16,048 INFO L93 Difference]: Finished difference Result 2278 states and 3375 transitions. [2024-11-24 01:09:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:16,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 468 [2024-11-24 01:09:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:16,053 INFO L225 Difference]: With dead ends: 2278 [2024-11-24 01:09:16,053 INFO L226 Difference]: Without dead ends: 1229 [2024-11-24 01:09:16,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:16,055 INFO L435 NwaCegarLoop]: 1716 mSDtfsCounter, 0 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:16,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5101 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-24 01:09:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2024-11-24 01:09:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1218 states have (on average 1.4794745484400658) internal successors, (1802), 1218 states have internal predecessors, (1802), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1820 transitions. [2024-11-24 01:09:16,083 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1820 transitions. Word has length 468 [2024-11-24 01:09:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:16,083 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1820 transitions. [2024-11-24 01:09:16,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1820 transitions. [2024-11-24 01:09:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-24 01:09:16,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:16,088 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:16,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:09:16,089 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:16,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:16,090 INFO L85 PathProgramCache]: Analyzing trace with hash -369286506, now seen corresponding path program 1 times [2024-11-24 01:09:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:16,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656728879] [2024-11-24 01:09:16,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:17,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656728879] [2024-11-24 01:09:17,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656728879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:17,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:17,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:17,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106884629] [2024-11-24 01:09:17,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:17,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:17,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:17,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:17,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:17,538 INFO L87 Difference]: Start difference. First operand 1229 states and 1820 transitions. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:17,617 INFO L93 Difference]: Finished difference Result 2278 states and 3374 transitions. [2024-11-24 01:09:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 469 [2024-11-24 01:09:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:17,622 INFO L225 Difference]: With dead ends: 2278 [2024-11-24 01:09:17,622 INFO L226 Difference]: Without dead ends: 1227 [2024-11-24 01:09:17,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:17,624 INFO L435 NwaCegarLoop]: 1699 mSDtfsCounter, 1600 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:17,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 3407 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2024-11-24 01:09:17,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2024-11-24 01:09:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1216 states have (on average 1.4794407894736843) internal successors, (1799), 1216 states have internal predecessors, (1799), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1817 transitions. [2024-11-24 01:09:17,651 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1817 transitions. Word has length 469 [2024-11-24 01:09:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:17,652 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1817 transitions. [2024-11-24 01:09:17,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1817 transitions. [2024-11-24 01:09:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-24 01:09:17,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:17,656 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:17,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:09:17,656 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:17,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1768628346, now seen corresponding path program 1 times [2024-11-24 01:09:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:17,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84221299] [2024-11-24 01:09:17,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:19,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:19,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84221299] [2024-11-24 01:09:19,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84221299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:19,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:09:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010453252] [2024-11-24 01:09:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:19,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:09:19,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:19,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:09:19,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:19,762 INFO L87 Difference]: Start difference. First operand 1227 states and 1817 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:20,698 INFO L93 Difference]: Finished difference Result 2280 states and 3376 transitions. [2024-11-24 01:09:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:20,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 469 [2024-11-24 01:09:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:20,704 INFO L225 Difference]: With dead ends: 2280 [2024-11-24 01:09:20,704 INFO L226 Difference]: Without dead ends: 1231 [2024-11-24 01:09:20,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:20,706 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 1502 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:20,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 4235 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:09:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-24 01:09:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1229. [2024-11-24 01:09:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1218 states have (on average 1.4786535303776682) internal successors, (1801), 1218 states have internal predecessors, (1801), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1819 transitions. [2024-11-24 01:09:20,756 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1819 transitions. Word has length 469 [2024-11-24 01:09:20,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:20,757 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1819 transitions. [2024-11-24 01:09:20,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1819 transitions. [2024-11-24 01:09:20,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-24 01:09:20,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:20,766 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:20,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:09:20,767 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:20,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 448543477, now seen corresponding path program 1 times [2024-11-24 01:09:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:20,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353545023] [2024-11-24 01:09:20,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:22,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:22,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353545023] [2024-11-24 01:09:22,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353545023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:22,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:22,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:09:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718209908] [2024-11-24 01:09:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:22,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:09:22,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:22,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:09:22,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:22,767 INFO L87 Difference]: Start difference. First operand 1229 states and 1819 transitions. Second operand has 7 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:22,931 INFO L93 Difference]: Finished difference Result 2288 states and 3386 transitions. [2024-11-24 01:09:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:09:22,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 470 [2024-11-24 01:09:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:22,936 INFO L225 Difference]: With dead ends: 2288 [2024-11-24 01:09:22,936 INFO L226 Difference]: Without dead ends: 1237 [2024-11-24 01:09:22,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:22,938 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 1624 mSDsluCounter, 6732 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 8426 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:22,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 8426 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-11-24 01:09:22,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1234. [2024-11-24 01:09:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1223 states have (on average 1.4775143090760425) internal successors, (1807), 1223 states have internal predecessors, (1807), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:22,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1825 transitions. [2024-11-24 01:09:22,968 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1825 transitions. Word has length 470 [2024-11-24 01:09:22,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:22,969 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1825 transitions. [2024-11-24 01:09:22,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1825 transitions. [2024-11-24 01:09:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:09:22,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:22,974 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:22,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:09:22,974 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:22,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:22,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1951955167, now seen corresponding path program 1 times [2024-11-24 01:09:22,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:22,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788160510] [2024-11-24 01:09:22,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:22,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788160510] [2024-11-24 01:09:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788160510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:24,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:09:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405914405] [2024-11-24 01:09:24,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:09:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:24,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:09:24,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:24,088 INFO L87 Difference]: Start difference. First operand 1234 states and 1825 transitions. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:25,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:25,097 INFO L93 Difference]: Finished difference Result 2294 states and 3392 transitions. [2024-11-24 01:09:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:25,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 471 [2024-11-24 01:09:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:25,104 INFO L225 Difference]: With dead ends: 2294 [2024-11-24 01:09:25,105 INFO L226 Difference]: Without dead ends: 1238 [2024-11-24 01:09:25,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:25,110 INFO L435 NwaCegarLoop]: 1417 mSDtfsCounter, 1693 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:25,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 5615 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:09:25,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-24 01:09:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1236. [2024-11-24 01:09:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1225 states have (on average 1.476734693877551) internal successors, (1809), 1225 states have internal predecessors, (1809), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1827 transitions. [2024-11-24 01:09:25,169 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1827 transitions. Word has length 471 [2024-11-24 01:09:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:25,170 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1827 transitions. [2024-11-24 01:09:25,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1827 transitions. [2024-11-24 01:09:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-24 01:09:25,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:25,174 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:25,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:09:25,174 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:25,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:25,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1390540113, now seen corresponding path program 1 times [2024-11-24 01:09:25,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:25,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070608937] [2024-11-24 01:09:25,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:25,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070608937] [2024-11-24 01:09:25,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070608937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:25,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:25,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636225439] [2024-11-24 01:09:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:25,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:25,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:25,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:25,976 INFO L87 Difference]: Start difference. First operand 1236 states and 1827 transitions. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:26,074 INFO L93 Difference]: Finished difference Result 2296 states and 3393 transitions. [2024-11-24 01:09:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 471 [2024-11-24 01:09:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:26,097 INFO L225 Difference]: With dead ends: 2296 [2024-11-24 01:09:26,098 INFO L226 Difference]: Without dead ends: 1238 [2024-11-24 01:09:26,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:26,100 INFO L435 NwaCegarLoop]: 1715 mSDtfsCounter, 0 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5096 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:26,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5096 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-24 01:09:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1238. [2024-11-24 01:09:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1227 states have (on average 1.475957620211899) internal successors, (1811), 1227 states have internal predecessors, (1811), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1829 transitions. [2024-11-24 01:09:26,123 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1829 transitions. Word has length 471 [2024-11-24 01:09:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:26,124 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1829 transitions. [2024-11-24 01:09:26,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:26,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1829 transitions. [2024-11-24 01:09:26,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-24 01:09:26,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:26,130 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:26,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:09:26,130 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:26,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:26,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1426653540, now seen corresponding path program 1 times [2024-11-24 01:09:26,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:26,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858882211] [2024-11-24 01:09:26,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:27,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:27,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858882211] [2024-11-24 01:09:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858882211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:27,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:27,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447255363] [2024-11-24 01:09:27,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:27,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:27,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:27,260 INFO L87 Difference]: Start difference. First operand 1238 states and 1829 transitions. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:27,333 INFO L93 Difference]: Finished difference Result 2296 states and 3392 transitions. [2024-11-24 01:09:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:27,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 472 [2024-11-24 01:09:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:27,337 INFO L225 Difference]: With dead ends: 2296 [2024-11-24 01:09:27,337 INFO L226 Difference]: Without dead ends: 1236 [2024-11-24 01:09:27,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:27,339 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 1610 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:27,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 3405 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-11-24 01:09:27,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1236. [2024-11-24 01:09:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1225 states have (on average 1.4759183673469387) internal successors, (1808), 1225 states have internal predecessors, (1808), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:09:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1826 transitions. [2024-11-24 01:09:27,358 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1826 transitions. Word has length 472 [2024-11-24 01:09:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:27,358 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1826 transitions. [2024-11-24 01:09:27,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1826 transitions. [2024-11-24 01:09:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-24 01:09:27,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:27,363 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:27,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:09:27,363 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:27,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1332268600, now seen corresponding path program 1 times [2024-11-24 01:09:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:27,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22036074] [2024-11-24 01:09:27,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:27,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:30,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:30,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22036074] [2024-11-24 01:09:30,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22036074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:30,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:30,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:09:30,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459227709] [2024-11-24 01:09:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:30,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:09:30,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:30,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:09:30,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:09:30,005 INFO L87 Difference]: Start difference. First operand 1236 states and 1826 transitions. Second operand has 11 states, 11 states have (on average 40.0) internal successors, (440), 11 states have internal predecessors, (440), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:31,996 INFO L93 Difference]: Finished difference Result 3477 states and 5135 transitions. [2024-11-24 01:09:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:09:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 40.0) internal successors, (440), 11 states have internal predecessors, (440), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 472 [2024-11-24 01:09:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:32,001 INFO L225 Difference]: With dead ends: 3477 [2024-11-24 01:09:32,001 INFO L226 Difference]: Without dead ends: 2419 [2024-11-24 01:09:32,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:09:32,003 INFO L435 NwaCegarLoop]: 1507 mSDtfsCounter, 3161 mSDsluCounter, 11800 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 13307 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:32,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 13307 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:09:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-11-24 01:09:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 1454. [2024-11-24 01:09:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1435 states have (on average 1.4689895470383276) internal successors, (2108), 1435 states have internal predecessors, (2108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 01:09:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2142 transitions. [2024-11-24 01:09:32,036 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2142 transitions. Word has length 472 [2024-11-24 01:09:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:32,037 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 2142 transitions. [2024-11-24 01:09:32,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 40.0) internal successors, (440), 11 states have internal predecessors, (440), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2142 transitions. [2024-11-24 01:09:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:09:32,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:32,042 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:32,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:09:32,042 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:32,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1392193212, now seen corresponding path program 1 times [2024-11-24 01:09:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:32,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875310200] [2024-11-24 01:09:32,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:34,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:34,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875310200] [2024-11-24 01:09:34,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875310200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:34,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:34,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:09:34,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192206619] [2024-11-24 01:09:34,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:34,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:09:34,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:34,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:09:34,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:34,278 INFO L87 Difference]: Start difference. First operand 1454 states and 2142 transitions. Second operand has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:34,618 INFO L93 Difference]: Finished difference Result 4853 states and 7155 transitions. [2024-11-24 01:09:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:09:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 473 [2024-11-24 01:09:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:34,627 INFO L225 Difference]: With dead ends: 4853 [2024-11-24 01:09:34,627 INFO L226 Difference]: Without dead ends: 3774 [2024-11-24 01:09:34,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:09:34,631 INFO L435 NwaCegarLoop]: 2991 mSDtfsCounter, 5875 mSDsluCounter, 12307 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 15298 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:34,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5889 Valid, 15298 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:09:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2024-11-24 01:09:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 1840. [2024-11-24 01:09:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1807 states have (on average 1.4576646375207527) internal successors, (2634), 1807 states have internal predecessors, (2634), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 01:09:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2696 transitions. [2024-11-24 01:09:34,676 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2696 transitions. Word has length 473 [2024-11-24 01:09:34,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:34,676 INFO L471 AbstractCegarLoop]: Abstraction has 1840 states and 2696 transitions. [2024-11-24 01:09:34,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2696 transitions. [2024-11-24 01:09:34,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-24 01:09:34,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:34,682 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:34,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:09:34,682 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:34,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:34,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1568968384, now seen corresponding path program 1 times [2024-11-24 01:09:34,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:34,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521625387] [2024-11-24 01:09:34,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:34,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521625387] [2024-11-24 01:09:35,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521625387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:35,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:35,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:09:35,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258756993] [2024-11-24 01:09:35,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:35,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:09:35,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:35,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:09:35,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:35,721 INFO L87 Difference]: Start difference. First operand 1840 states and 2696 transitions. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:37,085 INFO L93 Difference]: Finished difference Result 3943 states and 5802 transitions. [2024-11-24 01:09:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:09:37,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 473 [2024-11-24 01:09:37,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:37,095 INFO L225 Difference]: With dead ends: 3943 [2024-11-24 01:09:37,095 INFO L226 Difference]: Without dead ends: 2885 [2024-11-24 01:09:37,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:37,097 INFO L435 NwaCegarLoop]: 2537 mSDtfsCounter, 4406 mSDsluCounter, 6424 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4413 SdHoareTripleChecker+Valid, 8961 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:37,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4413 Valid, 8961 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:09:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2024-11-24 01:09:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2017. [2024-11-24 01:09:37,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1975 states have (on average 1.4536708860759493) internal successors, (2871), 1975 states have internal predecessors, (2871), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:09:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2951 transitions. [2024-11-24 01:09:37,153 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2951 transitions. Word has length 473 [2024-11-24 01:09:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:37,154 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2951 transitions. [2024-11-24 01:09:37,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2951 transitions. [2024-11-24 01:09:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-24 01:09:37,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:37,161 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:37,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:09:37,163 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:37,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash -162699845, now seen corresponding path program 1 times [2024-11-24 01:09:37,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332307637] [2024-11-24 01:09:37,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:38,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:38,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332307637] [2024-11-24 01:09:38,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332307637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:38,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:38,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:09:38,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654297950] [2024-11-24 01:09:38,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:38,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:09:38,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:38,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:09:38,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:09:38,422 INFO L87 Difference]: Start difference. First operand 2017 states and 2951 transitions. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:39,850 INFO L93 Difference]: Finished difference Result 4042 states and 5944 transitions. [2024-11-24 01:09:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:39,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 474 [2024-11-24 01:09:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:39,857 INFO L225 Difference]: With dead ends: 4042 [2024-11-24 01:09:39,857 INFO L226 Difference]: Without dead ends: 2885 [2024-11-24 01:09:39,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:39,860 INFO L435 NwaCegarLoop]: 2544 mSDtfsCounter, 2825 mSDsluCounter, 6445 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2832 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:39,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2832 Valid, 8989 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:09:39,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2024-11-24 01:09:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2442. [2024-11-24 01:09:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2400 states have (on average 1.4575) internal successors, (3498), 2400 states have internal predecessors, (3498), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:09:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3578 transitions. [2024-11-24 01:09:39,910 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3578 transitions. Word has length 474 [2024-11-24 01:09:39,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:39,910 INFO L471 AbstractCegarLoop]: Abstraction has 2442 states and 3578 transitions. [2024-11-24 01:09:39,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3578 transitions. [2024-11-24 01:09:39,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-24 01:09:39,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:39,916 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:39,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:09:39,917 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:39,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:39,917 INFO L85 PathProgramCache]: Analyzing trace with hash -713937105, now seen corresponding path program 1 times [2024-11-24 01:09:39,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:39,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054565343] [2024-11-24 01:09:39,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:39,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:41,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:41,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054565343] [2024-11-24 01:09:41,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054565343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:41,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:41,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:09:41,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651484892] [2024-11-24 01:09:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:41,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:09:41,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:41,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:09:41,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:41,971 INFO L87 Difference]: Start difference. First operand 2442 states and 3578 transitions. Second operand has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:42,461 INFO L93 Difference]: Finished difference Result 4457 states and 6512 transitions. [2024-11-24 01:09:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:09:42,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 474 [2024-11-24 01:09:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:42,467 INFO L225 Difference]: With dead ends: 4457 [2024-11-24 01:09:42,468 INFO L226 Difference]: Without dead ends: 2474 [2024-11-24 01:09:42,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:09:42,471 INFO L435 NwaCegarLoop]: 1691 mSDtfsCounter, 1635 mSDsluCounter, 6477 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 8168 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:42,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 8168 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:09:42,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2024-11-24 01:09:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2458. [2024-11-24 01:09:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2416 states have (on average 1.451158940397351) internal successors, (3506), 2416 states have internal predecessors, (3506), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:09:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3586 transitions. [2024-11-24 01:09:42,519 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3586 transitions. Word has length 474 [2024-11-24 01:09:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:42,519 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3586 transitions. [2024-11-24 01:09:42,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3586 transitions. [2024-11-24 01:09:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-24 01:09:42,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:42,525 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:42,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:09:42,525 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:42,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:42,526 INFO L85 PathProgramCache]: Analyzing trace with hash -152792710, now seen corresponding path program 1 times [2024-11-24 01:09:42,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:42,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602343686] [2024-11-24 01:09:42,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:42,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:45,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602343686] [2024-11-24 01:09:45,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602343686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:45,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:45,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:09:45,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925797901] [2024-11-24 01:09:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:45,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:09:45,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:45,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:09:45,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:09:45,021 INFO L87 Difference]: Start difference. First operand 2458 states and 3586 transitions. Second operand has 8 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:46,596 INFO L93 Difference]: Finished difference Result 5711 states and 8377 transitions. [2024-11-24 01:09:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:09:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 475 [2024-11-24 01:09:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:46,603 INFO L225 Difference]: With dead ends: 5711 [2024-11-24 01:09:46,604 INFO L226 Difference]: Without dead ends: 4085 [2024-11-24 01:09:46,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:09:46,611 INFO L435 NwaCegarLoop]: 1373 mSDtfsCounter, 3062 mSDsluCounter, 6685 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 8058 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:46,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3071 Valid, 8058 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:09:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2024-11-24 01:09:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 2580. [2024-11-24 01:09:46,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2532 states have (on average 1.447867298578199) internal successors, (3666), 2532 states have internal predecessors, (3666), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-24 01:09:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 3758 transitions. [2024-11-24 01:09:46,675 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 3758 transitions. Word has length 475 [2024-11-24 01:09:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:46,676 INFO L471 AbstractCegarLoop]: Abstraction has 2580 states and 3758 transitions. [2024-11-24 01:09:46,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 3758 transitions. [2024-11-24 01:09:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-24 01:09:46,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:46,682 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:46,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:09:46,682 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:46,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:46,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1663669115, now seen corresponding path program 1 times [2024-11-24 01:09:46,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:46,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473881287] [2024-11-24 01:09:46,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:46,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:48,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:48,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473881287] [2024-11-24 01:09:48,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473881287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:48,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:48,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:09:48,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020341368] [2024-11-24 01:09:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:48,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:09:48,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:48,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:09:48,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:48,826 INFO L87 Difference]: Start difference. First operand 2580 states and 3758 transitions. Second operand has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:49,805 INFO L93 Difference]: Finished difference Result 4294 states and 6279 transitions. [2024-11-24 01:09:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:09:49,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 475 [2024-11-24 01:09:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:49,810 INFO L225 Difference]: With dead ends: 4294 [2024-11-24 01:09:49,810 INFO L226 Difference]: Without dead ends: 2612 [2024-11-24 01:09:49,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:09:49,812 INFO L435 NwaCegarLoop]: 1398 mSDtfsCounter, 3261 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 5577 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:49,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3265 Valid, 5577 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:09:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2024-11-24 01:09:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2596. [2024-11-24 01:09:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2548 states have (on average 1.4419152276295133) internal successors, (3674), 2548 states have internal predecessors, (3674), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-24 01:09:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 3766 transitions. [2024-11-24 01:09:49,862 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 3766 transitions. Word has length 475 [2024-11-24 01:09:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:49,862 INFO L471 AbstractCegarLoop]: Abstraction has 2596 states and 3766 transitions. [2024-11-24 01:09:49,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:09:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 3766 transitions. [2024-11-24 01:09:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-24 01:09:49,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:49,868 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:49,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:09:49,868 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:49,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:49,869 INFO L85 PathProgramCache]: Analyzing trace with hash -43249979, now seen corresponding path program 1 times [2024-11-24 01:09:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:49,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926690210] [2024-11-24 01:09:49,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:49,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:51,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:51,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926690210] [2024-11-24 01:09:51,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926690210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:51,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:51,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:09:51,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265761624] [2024-11-24 01:09:51,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:51,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:09:51,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:51,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:09:51,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:09:51,895 INFO L87 Difference]: Start difference. First operand 2596 states and 3766 transitions. Second operand has 10 states, 10 states have (on average 44.4) internal successors, (444), 10 states have internal predecessors, (444), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 01:09:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:53,761 INFO L93 Difference]: Finished difference Result 5374 states and 7840 transitions. [2024-11-24 01:09:53,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:09:53,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 44.4) internal successors, (444), 10 states have internal predecessors, (444), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 476 [2024-11-24 01:09:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:53,767 INFO L225 Difference]: With dead ends: 5374 [2024-11-24 01:09:53,767 INFO L226 Difference]: Without dead ends: 3765 [2024-11-24 01:09:53,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:09:53,771 INFO L435 NwaCegarLoop]: 1449 mSDtfsCounter, 3067 mSDsluCounter, 9888 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 11337 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:53,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 11337 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:09:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2024-11-24 01:09:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 2714. [2024-11-24 01:09:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2660 states have (on average 1.437593984962406) internal successors, (3824), 2660 states have internal predecessors, (3824), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:09:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3928 transitions. [2024-11-24 01:09:53,827 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3928 transitions. Word has length 476 [2024-11-24 01:09:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:53,828 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 3928 transitions. [2024-11-24 01:09:53,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 44.4) internal successors, (444), 10 states have internal predecessors, (444), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 01:09:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3928 transitions. [2024-11-24 01:09:53,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-24 01:09:53,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:53,833 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:53,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 01:09:53,834 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:53,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash 326593764, now seen corresponding path program 1 times [2024-11-24 01:09:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860560174] [2024-11-24 01:09:53,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:53,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:54,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:54,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860560174] [2024-11-24 01:09:54,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860560174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:54,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:54,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:54,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956607577] [2024-11-24 01:09:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:54,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:54,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:54,862 INFO L87 Difference]: Start difference. First operand 2714 states and 3928 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:55,373 INFO L93 Difference]: Finished difference Result 4362 states and 6345 transitions. [2024-11-24 01:09:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 477 [2024-11-24 01:09:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:55,378 INFO L225 Difference]: With dead ends: 4362 [2024-11-24 01:09:55,378 INFO L226 Difference]: Without dead ends: 2714 [2024-11-24 01:09:55,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:55,381 INFO L435 NwaCegarLoop]: 1417 mSDtfsCounter, 1484 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:55,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 2822 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:09:55,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2024-11-24 01:09:55,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2710. [2024-11-24 01:09:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2656 states have (on average 1.4375) internal successors, (3818), 2656 states have internal predecessors, (3818), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:09:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3922 transitions. [2024-11-24 01:09:55,437 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3922 transitions. Word has length 477 [2024-11-24 01:09:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:55,438 INFO L471 AbstractCegarLoop]: Abstraction has 2710 states and 3922 transitions. [2024-11-24 01:09:55,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3922 transitions. [2024-11-24 01:09:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-24 01:09:55,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:55,444 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:55,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 01:09:55,444 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:55,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1790748253, now seen corresponding path program 1 times [2024-11-24 01:09:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:55,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398664375] [2024-11-24 01:09:55,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:55,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:58,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:58,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398664375] [2024-11-24 01:09:58,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398664375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:58,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:58,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:09:58,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024476761] [2024-11-24 01:09:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:58,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:09:58,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:58,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:09:58,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:58,026 INFO L87 Difference]: Start difference. First operand 2710 states and 3922 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:09:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:58,120 INFO L93 Difference]: Finished difference Result 5318 states and 7759 transitions. [2024-11-24 01:09:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:58,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 477 [2024-11-24 01:09:58,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:58,126 INFO L225 Difference]: With dead ends: 5318 [2024-11-24 01:09:58,126 INFO L226 Difference]: Without dead ends: 3674 [2024-11-24 01:09:58,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:58,129 INFO L435 NwaCegarLoop]: 1707 mSDtfsCounter, 530 mSDsluCounter, 5112 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:58,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 6819 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-11-24 01:09:58,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3672. [2024-11-24 01:09:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3618 states have (on average 1.4483139856274185) internal successors, (5240), 3618 states have internal predecessors, (5240), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:09:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5344 transitions. [2024-11-24 01:09:58,191 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5344 transitions. Word has length 477 [2024-11-24 01:09:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:58,192 INFO L471 AbstractCegarLoop]: Abstraction has 3672 states and 5344 transitions. [2024-11-24 01:09:58,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:09:58,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5344 transitions. [2024-11-24 01:09:58,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-24 01:09:58,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:58,198 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:58,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:09:58,199 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:58,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:58,199 INFO L85 PathProgramCache]: Analyzing trace with hash 587510462, now seen corresponding path program 1 times [2024-11-24 01:09:58,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:58,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098757286] [2024-11-24 01:09:58,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:09:59,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098757286] [2024-11-24 01:09:59,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098757286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:59,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:59,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:09:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130640818] [2024-11-24 01:09:59,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:59,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:09:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:59,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:09:59,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:59,850 INFO L87 Difference]: Start difference. First operand 3672 states and 5344 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:10:00,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:00,473 INFO L93 Difference]: Finished difference Result 6294 states and 9201 transitions. [2024-11-24 01:10:00,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:10:00,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 478 [2024-11-24 01:10:00,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:00,476 INFO L225 Difference]: With dead ends: 6294 [2024-11-24 01:10:00,477 INFO L226 Difference]: Without dead ends: 3688 [2024-11-24 01:10:00,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:00,480 INFO L435 NwaCegarLoop]: 1416 mSDtfsCounter, 1628 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:00,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 4215 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:10:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-24 01:10:00,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3680. [2024-11-24 01:10:00,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3626 states have (on average 1.4473248758963044) internal successors, (5248), 3626 states have internal predecessors, (5248), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:10:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5352 transitions. [2024-11-24 01:10:00,545 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5352 transitions. Word has length 478 [2024-11-24 01:10:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:00,545 INFO L471 AbstractCegarLoop]: Abstraction has 3680 states and 5352 transitions. [2024-11-24 01:10:00,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:10:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5352 transitions. [2024-11-24 01:10:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-24 01:10:00,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:00,552 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:00,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 01:10:00,553 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:00,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1213855281, now seen corresponding path program 1 times [2024-11-24 01:10:00,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:00,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330962927] [2024-11-24 01:10:00,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:10:03,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:03,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330962927] [2024-11-24 01:10:03,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330962927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:03,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:03,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:10:03,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988458078] [2024-11-24 01:10:03,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:03,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:10:03,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:03,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:10:03,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:03,140 INFO L87 Difference]: Start difference. First operand 3680 states and 5352 transitions. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:10:03,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:03,395 INFO L93 Difference]: Finished difference Result 8573 states and 12539 transitions. [2024-11-24 01:10:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:10:03,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 479 [2024-11-24 01:10:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:03,403 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:03,403 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:03,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:10:03,407 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 4181 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 6766 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:03,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4188 Valid, 6766 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:03,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4538200339558573) internal successors, (8563), 5890 states have internal predecessors, (8563), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8697 transitions. [2024-11-24 01:10:03,502 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8697 transitions. Word has length 479 [2024-11-24 01:10:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:03,502 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8697 transitions. [2024-11-24 01:10:03,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:10:03,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8697 transitions. [2024-11-24 01:10:03,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2024-11-24 01:10:03,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:03,517 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:03,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 01:10:03,518 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:03,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1836306189, now seen corresponding path program 1 times [2024-11-24 01:10:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570714066] [2024-11-24 01:10:03,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:05,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:05,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570714066] [2024-11-24 01:10:05,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570714066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:05,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:05,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:05,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405246219] [2024-11-24 01:10:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:05,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:05,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:05,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:05,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:05,877 INFO L87 Difference]: Start difference. First operand 5959 states and 8697 transitions. Second operand has 5 states, 5 states have (on average 196.8) internal successors, (984), 5 states have internal predecessors, (984), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:06,060 INFO L93 Difference]: Finished difference Result 8573 states and 12538 transitions. [2024-11-24 01:10:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 196.8) internal successors, (984), 5 states have internal predecessors, (984), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1051 [2024-11-24 01:10:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:06,067 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:06,068 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:06,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:06,072 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 2605 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:06,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2612 Valid, 3336 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4536502546689305) internal successors, (8562), 5890 states have internal predecessors, (8562), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8696 transitions. [2024-11-24 01:10:06,163 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8696 transitions. Word has length 1051 [2024-11-24 01:10:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:06,164 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8696 transitions. [2024-11-24 01:10:06,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.8) internal successors, (984), 5 states have internal predecessors, (984), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8696 transitions. [2024-11-24 01:10:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-11-24 01:10:06,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:06,181 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:06,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 01:10:06,182 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:06,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash -698914158, now seen corresponding path program 1 times [2024-11-24 01:10:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355972068] [2024-11-24 01:10:06,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:08,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:08,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355972068] [2024-11-24 01:10:08,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355972068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:08,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:08,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937117970] [2024-11-24 01:10:08,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:08,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:08,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:08,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:08,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:08,066 INFO L87 Difference]: Start difference. First operand 5959 states and 8696 transitions. Second operand has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:08,205 INFO L93 Difference]: Finished difference Result 8573 states and 12536 transitions. [2024-11-24 01:10:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:08,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1052 [2024-11-24 01:10:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:08,213 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:08,213 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:08,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:08,218 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 1373 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:08,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 3347 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:08,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:08,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:08,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4534804753820034) internal successors, (8561), 5890 states have internal predecessors, (8561), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8695 transitions. [2024-11-24 01:10:08,307 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8695 transitions. Word has length 1052 [2024-11-24 01:10:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:08,307 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8695 transitions. [2024-11-24 01:10:08,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8695 transitions. [2024-11-24 01:10:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2024-11-24 01:10:08,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:08,321 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:08,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 01:10:08,322 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:08,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1680424600, now seen corresponding path program 1 times [2024-11-24 01:10:08,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:08,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146261027] [2024-11-24 01:10:08,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:08,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:10,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:10,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146261027] [2024-11-24 01:10:10,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146261027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:10,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899231735] [2024-11-24 01:10:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:10,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:10,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:10,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:10,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:10,125 INFO L87 Difference]: Start difference. First operand 5959 states and 8695 transitions. Second operand has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:10,708 INFO L93 Difference]: Finished difference Result 8573 states and 12534 transitions. [2024-11-24 01:10:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1053 [2024-11-24 01:10:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:10,714 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:10,714 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:10,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:10,718 INFO L435 NwaCegarLoop]: 1401 mSDtfsCounter, 1286 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:10,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 2815 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:10:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4533106960950763) internal successors, (8560), 5890 states have internal predecessors, (8560), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8694 transitions. [2024-11-24 01:10:10,807 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8694 transitions. Word has length 1053 [2024-11-24 01:10:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8694 transitions. [2024-11-24 01:10:10,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8694 transitions. [2024-11-24 01:10:10,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1055 [2024-11-24 01:10:10,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:10,822 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:10,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 01:10:10,822 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:10,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1212954237, now seen corresponding path program 1 times [2024-11-24 01:10:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806271406] [2024-11-24 01:10:10,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:10,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:12,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:12,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806271406] [2024-11-24 01:10:12,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806271406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:12,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:12,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657000033] [2024-11-24 01:10:12,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:12,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:12,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:12,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:12,718 INFO L87 Difference]: Start difference. First operand 5959 states and 8694 transitions. Second operand has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:12,857 INFO L93 Difference]: Finished difference Result 8573 states and 12532 transitions. [2024-11-24 01:10:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:12,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1054 [2024-11-24 01:10:12,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:12,862 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:12,863 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:12,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:12,866 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 2489 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:12,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2496 Valid, 3334 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4531409168081495) internal successors, (8559), 5890 states have internal predecessors, (8559), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8693 transitions. [2024-11-24 01:10:12,955 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8693 transitions. Word has length 1054 [2024-11-24 01:10:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:12,956 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8693 transitions. [2024-11-24 01:10:12,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8693 transitions. [2024-11-24 01:10:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2024-11-24 01:10:12,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:12,970 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:12,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 01:10:12,971 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:12,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash 284597036, now seen corresponding path program 1 times [2024-11-24 01:10:12,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:12,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57238814] [2024-11-24 01:10:12,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:12,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:15,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:15,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57238814] [2024-11-24 01:10:15,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57238814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:15,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:15,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:15,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064098865] [2024-11-24 01:10:15,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:15,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:15,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:15,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:15,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:15,374 INFO L87 Difference]: Start difference. First operand 5959 states and 8693 transitions. Second operand has 5 states, 5 states have (on average 197.6) internal successors, (988), 5 states have internal predecessors, (988), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:15,512 INFO L93 Difference]: Finished difference Result 8573 states and 12530 transitions. [2024-11-24 01:10:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.6) internal successors, (988), 5 states have internal predecessors, (988), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1055 [2024-11-24 01:10:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:15,517 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:15,517 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:15,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:15,521 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 2473 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:15,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2480 Valid, 3334 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:15,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:15,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4529711375212224) internal successors, (8558), 5890 states have internal predecessors, (8558), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8692 transitions. [2024-11-24 01:10:15,589 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8692 transitions. Word has length 1055 [2024-11-24 01:10:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:15,590 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8692 transitions. [2024-11-24 01:10:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.6) internal successors, (988), 5 states have internal predecessors, (988), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8692 transitions. [2024-11-24 01:10:15,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-11-24 01:10:15,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:15,599 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:15,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 01:10:15,599 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:15,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:15,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1602067144, now seen corresponding path program 1 times [2024-11-24 01:10:15,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:15,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37844519] [2024-11-24 01:10:15,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:15,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:17,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:17,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37844519] [2024-11-24 01:10:17,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37844519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:17,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732426719] [2024-11-24 01:10:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:17,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:17,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:17,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:17,299 INFO L87 Difference]: Start difference. First operand 5959 states and 8692 transitions. Second operand has 5 states, 5 states have (on average 197.8) internal successors, (989), 5 states have internal predecessors, (989), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:17,841 INFO L93 Difference]: Finished difference Result 8573 states and 12528 transitions. [2024-11-24 01:10:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.8) internal successors, (989), 5 states have internal predecessors, (989), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1056 [2024-11-24 01:10:17,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:17,847 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:17,847 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:17,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:17,850 INFO L435 NwaCegarLoop]: 1399 mSDtfsCounter, 1228 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:17,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2811 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:10:17,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4528013582342953) internal successors, (8557), 5890 states have internal predecessors, (8557), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8691 transitions. [2024-11-24 01:10:17,928 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8691 transitions. Word has length 1056 [2024-11-24 01:10:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:17,929 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8691 transitions. [2024-11-24 01:10:17,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.8) internal successors, (989), 5 states have internal predecessors, (989), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8691 transitions. [2024-11-24 01:10:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2024-11-24 01:10:17,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:17,938 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:17,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 01:10:17,939 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:17,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1452979881, now seen corresponding path program 1 times [2024-11-24 01:10:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:17,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837806127] [2024-11-24 01:10:17,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:17,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:21,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:21,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837806127] [2024-11-24 01:10:21,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837806127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:21,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:21,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:10:21,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140840265] [2024-11-24 01:10:21,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:21,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:10:21,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:21,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:10:21,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:10:21,349 INFO L87 Difference]: Start difference. First operand 5959 states and 8691 transitions. Second operand has 4 states, 4 states have (on average 247.5) internal successors, (990), 4 states have internal predecessors, (990), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:21,533 INFO L93 Difference]: Finished difference Result 8573 states and 12526 transitions. [2024-11-24 01:10:21,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:21,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 247.5) internal successors, (990), 4 states have internal predecessors, (990), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1057 [2024-11-24 01:10:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:21,541 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:21,541 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:21,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:21,545 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1212 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:21,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 3332 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4526315789473685) internal successors, (8556), 5890 states have internal predecessors, (8556), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8690 transitions. [2024-11-24 01:10:21,640 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8690 transitions. Word has length 1057 [2024-11-24 01:10:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:21,641 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8690 transitions. [2024-11-24 01:10:21,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 247.5) internal successors, (990), 4 states have internal predecessors, (990), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8690 transitions. [2024-11-24 01:10:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2024-11-24 01:10:21,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:21,652 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:21,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 01:10:21,652 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:21,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1162884114, now seen corresponding path program 1 times [2024-11-24 01:10:21,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:21,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809835759] [2024-11-24 01:10:21,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:21,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:25,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:25,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809835759] [2024-11-24 01:10:25,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809835759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:25,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:25,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:10:25,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037433065] [2024-11-24 01:10:25,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:25,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:10:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:25,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:10:25,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:10:25,789 INFO L87 Difference]: Start difference. First operand 5959 states and 8690 transitions. Second operand has 4 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:25,918 INFO L93 Difference]: Finished difference Result 8573 states and 12524 transitions. [2024-11-24 01:10:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1058 [2024-11-24 01:10:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:25,923 INFO L225 Difference]: With dead ends: 8573 [2024-11-24 01:10:25,923 INFO L226 Difference]: Without dead ends: 5959 [2024-11-24 01:10:25,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:25,926 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1155 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:25,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 3332 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2024-11-24 01:10:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5959. [2024-11-24 01:10:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5890 states have (on average 1.4524617996604414) internal successors, (8555), 5890 states have internal predecessors, (8555), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8689 transitions. [2024-11-24 01:10:25,985 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8689 transitions. Word has length 1058 [2024-11-24 01:10:25,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:25,985 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8689 transitions. [2024-11-24 01:10:25,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8689 transitions. [2024-11-24 01:10:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-11-24 01:10:25,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:25,999 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:25,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 01:10:26,000 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:26,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash -414818305, now seen corresponding path program 1 times [2024-11-24 01:10:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:26,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306426096] [2024-11-24 01:10:26,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:26,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-24 01:10:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:32,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306426096] [2024-11-24 01:10:32,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306426096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:32,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:32,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:10:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424439437] [2024-11-24 01:10:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:32,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:10:32,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:32,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:10:32,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:32,399 INFO L87 Difference]: Start difference. First operand 5959 states and 8689 transitions. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:10:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:33,275 INFO L93 Difference]: Finished difference Result 11363 states and 16566 transitions. [2024-11-24 01:10:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:10:33,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 1059 [2024-11-24 01:10:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:33,281 INFO L225 Difference]: With dead ends: 11363 [2024-11-24 01:10:33,281 INFO L226 Difference]: Without dead ends: 5977 [2024-11-24 01:10:33,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:10:33,286 INFO L435 NwaCegarLoop]: 1392 mSDtfsCounter, 1620 mSDsluCounter, 4161 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:33,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 5553 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:10:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2024-11-24 01:10:33,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5968. [2024-11-24 01:10:33,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5968 states, 5899 states have (on average 1.4517714866926599) internal successors, (8564), 5899 states have internal predecessors, (8564), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:10:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5968 states to 5968 states and 8698 transitions. [2024-11-24 01:10:33,366 INFO L78 Accepts]: Start accepts. Automaton has 5968 states and 8698 transitions. Word has length 1059 [2024-11-24 01:10:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:33,367 INFO L471 AbstractCegarLoop]: Abstraction has 5968 states and 8698 transitions. [2024-11-24 01:10:33,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:10:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5968 states and 8698 transitions. [2024-11-24 01:10:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1062 [2024-11-24 01:10:33,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:33,381 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:33,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 01:10:33,381 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:33,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1854507837, now seen corresponding path program 1 times [2024-11-24 01:10:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027113915] [2024-11-24 01:10:33,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:10:39,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:39,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027113915] [2024-11-24 01:10:39,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027113915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:39,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:39,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:10:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341091715] [2024-11-24 01:10:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:39,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:10:39,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:39,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:10:39,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:10:39,484 INFO L87 Difference]: Start difference. First operand 5968 states and 8698 transitions. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:40,196 INFO L93 Difference]: Finished difference Result 12528 states and 18246 transitions. [2024-11-24 01:10:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:10:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1061 [2024-11-24 01:10:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:40,205 INFO L225 Difference]: With dead ends: 12528 [2024-11-24 01:10:40,205 INFO L226 Difference]: Without dead ends: 9913 [2024-11-24 01:10:40,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:10:40,209 INFO L435 NwaCegarLoop]: 1677 mSDtfsCounter, 1889 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 6691 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:40,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 6691 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:10:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2024-11-24 01:10:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 9458. [2024-11-24 01:10:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9458 states, 9337 states have (on average 1.4478954696369284) internal successors, (13519), 9337 states have internal predecessors, (13519), 119 states have call successors, (119), 1 states have call predecessors, (119), 1 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-24 01:10:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9458 states to 9458 states and 13757 transitions. [2024-11-24 01:10:40,320 INFO L78 Accepts]: Start accepts. Automaton has 9458 states and 13757 transitions. Word has length 1061 [2024-11-24 01:10:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:40,321 INFO L471 AbstractCegarLoop]: Abstraction has 9458 states and 13757 transitions. [2024-11-24 01:10:40,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:10:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9458 states and 13757 transitions. [2024-11-24 01:10:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1063 [2024-11-24 01:10:40,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:40,339 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 01:10:40,340 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:40,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash -134605569, now seen corresponding path program 1 times [2024-11-24 01:10:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632528487] [2024-11-24 01:10:40,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-11-24 01:10:48,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:48,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632528487] [2024-11-24 01:10:48,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632528487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:48,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:48,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:10:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058430413] [2024-11-24 01:10:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:48,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:10:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:48,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:10:48,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:10:48,286 INFO L87 Difference]: Start difference. First operand 9458 states and 13757 transitions. Second operand has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:48,572 INFO L93 Difference]: Finished difference Result 21079 states and 30702 transitions. [2024-11-24 01:10:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:10:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1062 [2024-11-24 01:10:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:48,586 INFO L225 Difference]: With dead ends: 21079 [2024-11-24 01:10:48,586 INFO L226 Difference]: Without dead ends: 16480 [2024-11-24 01:10:48,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:10:48,593 INFO L435 NwaCegarLoop]: 3060 mSDtfsCounter, 2773 mSDsluCounter, 17017 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 20077 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:48,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 20077 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:10:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16480 states. [2024-11-24 01:10:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16480 to 10744. [2024-11-24 01:10:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10744 states, 10571 states have (on average 1.4401664932362124) internal successors, (15224), 10571 states have internal predecessors, (15224), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-24 01:10:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10744 states to 10744 states and 15566 transitions. [2024-11-24 01:10:48,746 INFO L78 Accepts]: Start accepts. Automaton has 10744 states and 15566 transitions. Word has length 1062 [2024-11-24 01:10:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:48,746 INFO L471 AbstractCegarLoop]: Abstraction has 10744 states and 15566 transitions. [2024-11-24 01:10:48,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.625) internal successors, (693), 8 states have internal predecessors, (693), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:10:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 10744 states and 15566 transitions. [2024-11-24 01:10:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1063 [2024-11-24 01:10:48,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:48,759 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:48,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 01:10:48,759 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:48,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash -223786673, now seen corresponding path program 1 times [2024-11-24 01:10:48,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:48,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353564911] [2024-11-24 01:10:48,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:48,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-24 01:10:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:56,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353564911] [2024-11-24 01:10:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353564911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:10:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5772821] [2024-11-24 01:10:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:56,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:10:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:56,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:10:56,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:10:56,433 INFO L87 Difference]: Start difference. First operand 10744 states and 15566 transitions. Second operand has 7 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:10:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:56,969 INFO L93 Difference]: Finished difference Result 21101 states and 30489 transitions. [2024-11-24 01:10:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:10:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 1062 [2024-11-24 01:10:56,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:56,980 INFO L225 Difference]: With dead ends: 21101 [2024-11-24 01:10:56,980 INFO L226 Difference]: Without dead ends: 10844 [2024-11-24 01:10:56,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:10:56,991 INFO L435 NwaCegarLoop]: 1678 mSDtfsCounter, 1654 mSDsluCounter, 6430 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 8108 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:56,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 8108 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:10:56,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2024-11-24 01:10:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 10794. [2024-11-24 01:10:57,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 10621 states have (on average 1.4357405140758874) internal successors, (15249), 10621 states have internal predecessors, (15249), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-24 01:10:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 15591 transitions. [2024-11-24 01:10:57,138 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 15591 transitions. Word has length 1062 [2024-11-24 01:10:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:57,139 INFO L471 AbstractCegarLoop]: Abstraction has 10794 states and 15591 transitions. [2024-11-24 01:10:57,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:10:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 15591 transitions. [2024-11-24 01:10:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2024-11-24 01:10:57,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:57,150 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:10:57,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-24 01:10:57,150 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:57,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:57,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1683479349, now seen corresponding path program 1 times [2024-11-24 01:10:57,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:57,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546047410] [2024-11-24 01:10:57,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 383 proven. 3 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:11:07,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:07,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546047410] [2024-11-24 01:11:07,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546047410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:11:07,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356265570] [2024-11-24 01:11:07,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:07,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:07,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:11:07,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:11:07,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:11:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:10,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 5297 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 01:11:10,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:11:10,818 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-24 01:11:10,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:11:10,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356265570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:10,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:11:10,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-24 01:11:10,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873858570] [2024-11-24 01:11:10,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:10,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:11:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:10,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:11:10,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:11:10,822 INFO L87 Difference]: Start difference. First operand 10794 states and 15591 transitions. Second operand has 9 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 01:11:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:12,367 INFO L93 Difference]: Finished difference Result 20563 states and 29705 transitions. [2024-11-24 01:11:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:11:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 1064 [2024-11-24 01:11:12,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:12,376 INFO L225 Difference]: With dead ends: 20563 [2024-11-24 01:11:12,376 INFO L226 Difference]: Without dead ends: 10900 [2024-11-24 01:11:12,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1058 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:11:12,384 INFO L435 NwaCegarLoop]: 1385 mSDtfsCounter, 1576 mSDsluCounter, 8203 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 9588 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:12,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 9588 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:11:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2024-11-24 01:11:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 10826. [2024-11-24 01:11:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10826 states, 10653 states have (on average 1.4318032479113865) internal successors, (15253), 10653 states have internal predecessors, (15253), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-24 01:11:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10826 states to 10826 states and 15595 transitions. [2024-11-24 01:11:12,511 INFO L78 Accepts]: Start accepts. Automaton has 10826 states and 15595 transitions. Word has length 1064 [2024-11-24 01:11:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:12,511 INFO L471 AbstractCegarLoop]: Abstraction has 10826 states and 15595 transitions. [2024-11-24 01:11:12,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 01:11:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10826 states and 15595 transitions. [2024-11-24 01:11:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2024-11-24 01:11:12,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:12,523 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:11:12,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:11:12,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:12,724 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:12,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash 849670013, now seen corresponding path program 1 times [2024-11-24 01:11:12,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:12,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488400047] [2024-11-24 01:11:12,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:12,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-24 01:11:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488400047] [2024-11-24 01:11:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488400047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:21,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:21,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:11:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437897633] [2024-11-24 01:11:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:21,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:11:21,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:21,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:11:21,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:21,441 INFO L87 Difference]: Start difference. First operand 10826 states and 15595 transitions. Second operand has 5 states, 5 states have (on average 182.6) internal successors, (913), 5 states have internal predecessors, (913), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:11:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:22,167 INFO L93 Difference]: Finished difference Result 17475 states and 25378 transitions. [2024-11-24 01:11:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:22,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 182.6) internal successors, (913), 5 states have internal predecessors, (913), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 1068 [2024-11-24 01:11:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:22,178 INFO L225 Difference]: With dead ends: 17475 [2024-11-24 01:11:22,178 INFO L226 Difference]: Without dead ends: 10850 [2024-11-24 01:11:22,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:22,185 INFO L435 NwaCegarLoop]: 1408 mSDtfsCounter, 1073 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:22,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 4213 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:11:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2024-11-24 01:11:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 10838. [2024-11-24 01:11:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10838 states, 10665 states have (on average 1.43131739334271) internal successors, (15265), 10665 states have internal predecessors, (15265), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-24 01:11:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10838 states to 10838 states and 15607 transitions. [2024-11-24 01:11:22,327 INFO L78 Accepts]: Start accepts. Automaton has 10838 states and 15607 transitions. Word has length 1068 [2024-11-24 01:11:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:22,327 INFO L471 AbstractCegarLoop]: Abstraction has 10838 states and 15607 transitions. [2024-11-24 01:11:22,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 182.6) internal successors, (913), 5 states have internal predecessors, (913), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:11:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 10838 states and 15607 transitions. [2024-11-24 01:11:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2024-11-24 01:11:22,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:22,346 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:11:22,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-24 01:11:22,347 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:22,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1050804387, now seen corresponding path program 1 times [2024-11-24 01:11:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:22,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052863640] [2024-11-24 01:11:22,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-11-24 01:11:28,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:28,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052863640] [2024-11-24 01:11:28,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052863640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:28,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:28,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:11:28,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252353339] [2024-11-24 01:11:28,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:28,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:11:28,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:28,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:11:28,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:11:28,418 INFO L87 Difference]: Start difference. First operand 10838 states and 15607 transitions. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:11:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:28,959 INFO L93 Difference]: Finished difference Result 17467 states and 25358 transitions. [2024-11-24 01:11:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:11:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1068 [2024-11-24 01:11:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:28,968 INFO L225 Difference]: With dead ends: 17467 [2024-11-24 01:11:28,968 INFO L226 Difference]: Without dead ends: 10838 [2024-11-24 01:11:28,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:11:28,975 INFO L435 NwaCegarLoop]: 1409 mSDtfsCounter, 1599 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:28,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 2806 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:11:28,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2024-11-24 01:11:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 10838. [2024-11-24 01:11:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10838 states, 10665 states have (on average 1.4301922175339896) internal successors, (15253), 10665 states have internal predecessors, (15253), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-24 01:11:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10838 states to 10838 states and 15595 transitions. [2024-11-24 01:11:29,108 INFO L78 Accepts]: Start accepts. Automaton has 10838 states and 15595 transitions. Word has length 1068 [2024-11-24 01:11:29,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:29,108 INFO L471 AbstractCegarLoop]: Abstraction has 10838 states and 15595 transitions. [2024-11-24 01:11:29,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:11:29,109 INFO L276 IsEmpty]: Start isEmpty. Operand 10838 states and 15595 transitions. [2024-11-24 01:11:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2024-11-24 01:11:29,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:29,121 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:11:29,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-24 01:11:29,121 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:29,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1295844063, now seen corresponding path program 1 times [2024-11-24 01:11:29,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:29,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808353558] [2024-11-24 01:11:29,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:29,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 385 proven. 5 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:11:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808353558] [2024-11-24 01:11:39,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808353558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:11:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79296111] [2024-11-24 01:11:39,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:39,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:39,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:11:39,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:11:39,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:11:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:41,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 5305 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:11:41,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:11:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 362 proven. 6 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-24 01:11:44,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:11:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 320 proven. 3 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-24 01:11:47,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79296111] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:11:47,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:11:47,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 24 [2024-11-24 01:11:47,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071933835] [2024-11-24 01:11:47,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:11:47,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 01:11:47,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:47,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 01:11:47,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:11:47,778 INFO L87 Difference]: Start difference. First operand 10838 states and 15595 transitions. Second operand has 24 states, 24 states have (on average 93.91666666666667) internal successors, (2254), 24 states have internal predecessors, (2254), 5 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-24 01:11:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:52,769 INFO L93 Difference]: Finished difference Result 20405 states and 29607 transitions. [2024-11-24 01:11:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:11:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 93.91666666666667) internal successors, (2254), 24 states have internal predecessors, (2254), 5 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 1070 [2024-11-24 01:11:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:52,781 INFO L225 Difference]: With dead ends: 20405 [2024-11-24 01:11:52,782 INFO L226 Difference]: Without dead ends: 13524 [2024-11-24 01:11:52,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2173 GetRequests, 2128 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 01:11:52,789 INFO L435 NwaCegarLoop]: 2568 mSDtfsCounter, 9255 mSDsluCounter, 34518 mSDsCounter, 0 mSdLazyCounter, 8837 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9255 SdHoareTripleChecker+Valid, 37086 SdHoareTripleChecker+Invalid, 8845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:52,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9255 Valid, 37086 Invalid, 8845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 8837 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-24 01:11:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13524 states. [2024-11-24 01:11:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13524 to 8942. [2024-11-24 01:11:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8844 states have (on average 1.4428991406603346) internal successors, (12761), 8844 states have internal predecessors, (12761), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 01:11:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 12953 transitions. [2024-11-24 01:11:52,914 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 12953 transitions. Word has length 1070 [2024-11-24 01:11:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:52,915 INFO L471 AbstractCegarLoop]: Abstraction has 8942 states and 12953 transitions. [2024-11-24 01:11:52,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 93.91666666666667) internal successors, (2254), 24 states have internal predecessors, (2254), 5 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-11-24 01:11:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 12953 transitions. [2024-11-24 01:11:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2024-11-24 01:11:52,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:52,926 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:11:52,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:11:53,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:53,126 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:53,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash 14670463, now seen corresponding path program 1 times [2024-11-24 01:11:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:53,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102605255] [2024-11-24 01:11:53,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:53,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:11:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:59,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102605255] [2024-11-24 01:11:59,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102605255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:59,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:59,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:11:59,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786062359] [2024-11-24 01:11:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:59,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:11:59,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:59,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:11:59,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:59,116 INFO L87 Difference]: Start difference. First operand 8942 states and 12953 transitions. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:00,152 INFO L93 Difference]: Finished difference Result 11598 states and 16830 transitions. [2024-11-24 01:12:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:12:00,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1073 [2024-11-24 01:12:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:00,159 INFO L225 Difference]: With dead ends: 11598 [2024-11-24 01:12:00,159 INFO L226 Difference]: Without dead ends: 8969 [2024-11-24 01:12:00,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:00,163 INFO L435 NwaCegarLoop]: 1477 mSDtfsCounter, 3415 mSDsluCounter, 4294 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 5771 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:00,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 5771 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:12:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2024-11-24 01:12:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 8943. [2024-11-24 01:12:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8845 states have (on average 1.442849067269644) internal successors, (12762), 8845 states have internal predecessors, (12762), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 01:12:00,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 12954 transitions. [2024-11-24 01:12:00,251 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 12954 transitions. Word has length 1073 [2024-11-24 01:12:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:00,251 INFO L471 AbstractCegarLoop]: Abstraction has 8943 states and 12954 transitions. [2024-11-24 01:12:00,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 12954 transitions. [2024-11-24 01:12:00,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2024-11-24 01:12:00,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:00,262 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:00,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-24 01:12:00,262 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:00,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash -423848802, now seen corresponding path program 1 times [2024-11-24 01:12:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:00,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963377152] [2024-11-24 01:12:00,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:12:08,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:08,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963377152] [2024-11-24 01:12:08,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963377152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:08,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:08,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:12:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514100835] [2024-11-24 01:12:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:08,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:12:08,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:08,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:12:08,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:12:08,038 INFO L87 Difference]: Start difference. First operand 8943 states and 12954 transitions. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:09,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:09,037 INFO L93 Difference]: Finished difference Result 11813 states and 17142 transitions. [2024-11-24 01:12:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:12:09,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1074 [2024-11-24 01:12:09,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:09,044 INFO L225 Difference]: With dead ends: 11813 [2024-11-24 01:12:09,044 INFO L226 Difference]: Without dead ends: 9184 [2024-11-24 01:12:09,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:09,048 INFO L435 NwaCegarLoop]: 1401 mSDtfsCounter, 2499 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:09,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2506 Valid, 5537 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:12:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9184 states. [2024-11-24 01:12:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9184 to 6271. [2024-11-24 01:12:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 6200 states have (on average 1.4417741935483872) internal successors, (8939), 6200 states have internal predecessors, (8939), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-24 01:12:09,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 9077 transitions. [2024-11-24 01:12:09,159 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 9077 transitions. Word has length 1074 [2024-11-24 01:12:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:09,160 INFO L471 AbstractCegarLoop]: Abstraction has 6271 states and 9077 transitions. [2024-11-24 01:12:09,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 9077 transitions. [2024-11-24 01:12:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2024-11-24 01:12:09,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:09,168 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:09,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-24 01:12:09,168 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:09,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:09,169 INFO L85 PathProgramCache]: Analyzing trace with hash 819607740, now seen corresponding path program 1 times [2024-11-24 01:12:09,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:09,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068116926] [2024-11-24 01:12:09,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:09,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-24 01:12:16,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:16,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068116926] [2024-11-24 01:12:16,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068116926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:16,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:16,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:12:16,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793324916] [2024-11-24 01:12:16,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:16,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:12:16,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:16,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:12:16,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:12:16,970 INFO L87 Difference]: Start difference. First operand 6271 states and 9077 transitions. Second operand has 5 states, 5 states have (on average 172.2) internal successors, (861), 5 states have internal predecessors, (861), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:17,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:17,632 INFO L93 Difference]: Finished difference Result 9971 states and 14479 transitions. [2024-11-24 01:12:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:12:17,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 172.2) internal successors, (861), 5 states have internal predecessors, (861), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1074 [2024-11-24 01:12:17,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:17,637 INFO L225 Difference]: With dead ends: 9971 [2024-11-24 01:12:17,637 INFO L226 Difference]: Without dead ends: 6303 [2024-11-24 01:12:17,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:12:17,641 INFO L435 NwaCegarLoop]: 1407 mSDtfsCounter, 1391 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:17,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 4210 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:12:17,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-24 01:12:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6295. [2024-11-24 01:12:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 6224 states have (on average 1.4400706940874035) internal successors, (8963), 6224 states have internal predecessors, (8963), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-24 01:12:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 9101 transitions. [2024-11-24 01:12:17,719 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 9101 transitions. Word has length 1074 [2024-11-24 01:12:17,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:17,719 INFO L471 AbstractCegarLoop]: Abstraction has 6295 states and 9101 transitions. [2024-11-24 01:12:17,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.2) internal successors, (861), 5 states have internal predecessors, (861), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:12:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 9101 transitions. [2024-11-24 01:12:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2024-11-24 01:12:17,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:17,728 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:17,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-24 01:12:17,728 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:17,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash -940205876, now seen corresponding path program 1 times [2024-11-24 01:12:17,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:17,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366436017] [2024-11-24 01:12:17,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2024-11-24 01:12:27,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:27,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366436017] [2024-11-24 01:12:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366436017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:12:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457244053] [2024-11-24 01:12:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:27,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:12:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:27,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:12:27,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:12:27,780 INFO L87 Difference]: Start difference. First operand 6295 states and 9101 transitions. Second operand has 8 states, 8 states have (on average 85.875) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:12:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:28,658 INFO L93 Difference]: Finished difference Result 14889 states and 21608 transitions. [2024-11-24 01:12:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:12:28,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 85.875) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1076 [2024-11-24 01:12:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:28,668 INFO L225 Difference]: With dead ends: 14889 [2024-11-24 01:12:28,668 INFO L226 Difference]: Without dead ends: 10829 [2024-11-24 01:12:28,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:12:28,673 INFO L435 NwaCegarLoop]: 3127 mSDtfsCounter, 4366 mSDsluCounter, 13922 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4373 SdHoareTripleChecker+Valid, 17049 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:28,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4373 Valid, 17049 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:12:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2024-11-24 01:12:28,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 6589. [2024-11-24 01:12:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 6510 states have (on average 1.437941628264209) internal successors, (9361), 6510 states have internal predecessors, (9361), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-24 01:12:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 9515 transitions. [2024-11-24 01:12:28,766 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 9515 transitions. Word has length 1076 [2024-11-24 01:12:28,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:28,766 INFO L471 AbstractCegarLoop]: Abstraction has 6589 states and 9515 transitions. [2024-11-24 01:12:28,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 85.875) internal successors, (687), 8 states have internal predecessors, (687), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:12:28,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 9515 transitions. [2024-11-24 01:12:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1078 [2024-11-24 01:12:28,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:28,775 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:28,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-24 01:12:28,776 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:28,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1465158353, now seen corresponding path program 1 times [2024-11-24 01:12:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697175939] [2024-11-24 01:12:28,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:12:36,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697175939] [2024-11-24 01:12:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697175939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:36,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:36,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:12:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979668800] [2024-11-24 01:12:36,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:12:36,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:36,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:12:36,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:36,499 INFO L87 Difference]: Start difference. First operand 6589 states and 9515 transitions. Second operand has 7 states, 7 states have (on average 144.28571428571428) internal successors, (1010), 7 states have internal predecessors, (1010), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:38,067 INFO L93 Difference]: Finished difference Result 11860 states and 17199 transitions. [2024-11-24 01:12:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:12:38,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 144.28571428571428) internal successors, (1010), 7 states have internal predecessors, (1010), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1077 [2024-11-24 01:12:38,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:38,075 INFO L225 Difference]: With dead ends: 11860 [2024-11-24 01:12:38,075 INFO L226 Difference]: Without dead ends: 9219 [2024-11-24 01:12:38,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:12:38,078 INFO L435 NwaCegarLoop]: 2631 mSDtfsCounter, 2538 mSDsluCounter, 9246 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 11877 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:38,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 11877 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:12:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2024-11-24 01:12:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 6659. [2024-11-24 01:12:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 6578 states have (on average 1.4373669808452416) internal successors, (9455), 6578 states have internal predecessors, (9455), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:12:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 9613 transitions. [2024-11-24 01:12:38,164 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 9613 transitions. Word has length 1077 [2024-11-24 01:12:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:38,164 INFO L471 AbstractCegarLoop]: Abstraction has 6659 states and 9613 transitions. [2024-11-24 01:12:38,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.28571428571428) internal successors, (1010), 7 states have internal predecessors, (1010), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:38,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 9613 transitions. [2024-11-24 01:12:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1079 [2024-11-24 01:12:38,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:38,174 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-24 01:12:38,174 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:38,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash -399816618, now seen corresponding path program 1 times [2024-11-24 01:12:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:38,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448126014] [2024-11-24 01:12:38,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-24 01:12:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448126014] [2024-11-24 01:12:48,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448126014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:48,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:48,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:12:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349993682] [2024-11-24 01:12:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:48,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:12:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:48,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:12:48,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:12:48,838 INFO L87 Difference]: Start difference. First operand 6659 states and 9613 transitions. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:12:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:49,206 INFO L93 Difference]: Finished difference Result 18207 states and 26342 transitions. [2024-11-24 01:12:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:12:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 1078 [2024-11-24 01:12:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:49,220 INFO L225 Difference]: With dead ends: 18207 [2024-11-24 01:12:49,220 INFO L226 Difference]: Without dead ends: 13217 [2024-11-24 01:12:49,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:12:49,225 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 5630 mSDsluCounter, 7953 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5642 SdHoareTripleChecker+Valid, 9651 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:49,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5642 Valid, 9651 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:12:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13217 states. [2024-11-24 01:12:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13217 to 8143. [2024-11-24 01:12:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8143 states, 8004 states have (on average 1.4219140429785107) internal successors, (11381), 8004 states have internal predecessors, (11381), 137 states have call successors, (137), 1 states have call predecessors, (137), 1 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-24 01:12:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8143 states to 8143 states and 11655 transitions. [2024-11-24 01:12:49,366 INFO L78 Accepts]: Start accepts. Automaton has 8143 states and 11655 transitions. Word has length 1078 [2024-11-24 01:12:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:49,367 INFO L471 AbstractCegarLoop]: Abstraction has 8143 states and 11655 transitions. [2024-11-24 01:12:49,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:12:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 8143 states and 11655 transitions. [2024-11-24 01:12:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1079 [2024-11-24 01:12:49,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:49,379 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:49,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-24 01:12:49,379 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:49,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1487197402, now seen corresponding path program 1 times [2024-11-24 01:12:49,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739588688] [2024-11-24 01:12:49,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:49,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:12:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739588688] [2024-11-24 01:12:51,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739588688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:51,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:12:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120835590] [2024-11-24 01:12:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:51,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:12:51,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:51,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:12:51,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:51,321 INFO L87 Difference]: Start difference. First operand 8143 states and 11655 transitions. Second operand has 7 states, 7 states have (on average 144.42857142857142) internal successors, (1011), 7 states have internal predecessors, (1011), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:52,812 INFO L93 Difference]: Finished difference Result 16145 states and 23310 transitions. [2024-11-24 01:12:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:12:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 144.42857142857142) internal successors, (1011), 7 states have internal predecessors, (1011), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1078 [2024-11-24 01:12:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:52,823 INFO L225 Difference]: With dead ends: 16145 [2024-11-24 01:12:52,823 INFO L226 Difference]: Without dead ends: 13259 [2024-11-24 01:12:52,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:12:52,827 INFO L435 NwaCegarLoop]: 2506 mSDtfsCounter, 3692 mSDsluCounter, 6337 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 8843 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:52,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 8843 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:12:52,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13259 states. [2024-11-24 01:12:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13259 to 12808. [2024-11-24 01:12:53,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12808 states, 12631 states have (on average 1.4331406856147573) internal successors, (18102), 12631 states have internal predecessors, (18102), 175 states have call successors, (175), 1 states have call predecessors, (175), 1 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2024-11-24 01:12:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12808 states to 12808 states and 18452 transitions. [2024-11-24 01:12:53,075 INFO L78 Accepts]: Start accepts. Automaton has 12808 states and 18452 transitions. Word has length 1078 [2024-11-24 01:12:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:53,075 INFO L471 AbstractCegarLoop]: Abstraction has 12808 states and 18452 transitions. [2024-11-24 01:12:53,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.42857142857142) internal successors, (1011), 7 states have internal predecessors, (1011), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 12808 states and 18452 transitions. [2024-11-24 01:12:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2024-11-24 01:12:53,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:53,095 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:53,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-24 01:12:53,095 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:53,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash -702484560, now seen corresponding path program 1 times [2024-11-24 01:12:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:53,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006692692] [2024-11-24 01:12:53,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:53,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:12:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:12:56,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:12:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006692692] [2024-11-24 01:12:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006692692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:56,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:56,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:12:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442901792] [2024-11-24 01:12:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:56,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:12:56,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:12:56,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:12:56,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:56,192 INFO L87 Difference]: Start difference. First operand 12808 states and 18452 transitions. Second operand has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:57,641 INFO L93 Difference]: Finished difference Result 18173 states and 26279 transitions. [2024-11-24 01:12:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:12:57,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1079 [2024-11-24 01:12:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:57,652 INFO L225 Difference]: With dead ends: 18173 [2024-11-24 01:12:57,652 INFO L226 Difference]: Without dead ends: 13259 [2024-11-24 01:12:57,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:12:57,657 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 2538 mSDsluCounter, 5991 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 7648 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:57,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2542 Valid, 7648 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:12:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13259 states. [2024-11-24 01:12:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13259 to 13225. [2024-11-24 01:12:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13225 states, 13048 states have (on average 1.433859595340282) internal successors, (18709), 13048 states have internal predecessors, (18709), 175 states have call successors, (175), 1 states have call predecessors, (175), 1 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2024-11-24 01:12:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13225 states to 13225 states and 19059 transitions. [2024-11-24 01:12:57,828 INFO L78 Accepts]: Start accepts. Automaton has 13225 states and 19059 transitions. Word has length 1079 [2024-11-24 01:12:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:57,828 INFO L471 AbstractCegarLoop]: Abstraction has 13225 states and 19059 transitions. [2024-11-24 01:12:57,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:12:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13225 states and 19059 transitions. [2024-11-24 01:12:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2024-11-24 01:12:57,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:57,906 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:12:57,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-24 01:12:57,906 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:57,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1510769014, now seen corresponding path program 1 times [2024-11-24 01:12:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:12:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384000666] [2024-11-24 01:12:57,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2024-11-24 01:13:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384000666] [2024-11-24 01:13:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384000666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:13:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592690534] [2024-11-24 01:13:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:06,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:13:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:06,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:13:06,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:13:06,905 INFO L87 Difference]: Start difference. First operand 13225 states and 19059 transitions. Second operand has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:13:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:07,482 INFO L93 Difference]: Finished difference Result 20457 states and 29630 transitions. [2024-11-24 01:13:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:13:07,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 1079 [2024-11-24 01:13:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:07,493 INFO L225 Difference]: With dead ends: 20457 [2024-11-24 01:13:07,493 INFO L226 Difference]: Without dead ends: 13225 [2024-11-24 01:13:07,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:13:07,499 INFO L435 NwaCegarLoop]: 1408 mSDtfsCounter, 1059 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:07,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2815 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:13:07,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13225 states. [2024-11-24 01:13:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13225 to 13177. [2024-11-24 01:13:07,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13177 states, 13000 states have (on average 1.4342307692307692) internal successors, (18645), 13000 states have internal predecessors, (18645), 175 states have call successors, (175), 1 states have call predecessors, (175), 1 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2024-11-24 01:13:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13177 states to 13177 states and 18995 transitions. [2024-11-24 01:13:07,676 INFO L78 Accepts]: Start accepts. Automaton has 13177 states and 18995 transitions. Word has length 1079 [2024-11-24 01:13:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:07,677 INFO L471 AbstractCegarLoop]: Abstraction has 13177 states and 18995 transitions. [2024-11-24 01:13:07,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:13:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 13177 states and 18995 transitions. [2024-11-24 01:13:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2024-11-24 01:13:07,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:07,691 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:13:07,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-24 01:13:07,691 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:07,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1160552950, now seen corresponding path program 1 times [2024-11-24 01:13:07,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:07,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840843714] [2024-11-24 01:13:07,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:07,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2024-11-24 01:13:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:16,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840843714] [2024-11-24 01:13:16,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840843714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:16,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:16,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:13:16,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168925939] [2024-11-24 01:13:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:16,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:13:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:16,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:13:16,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:13:16,394 INFO L87 Difference]: Start difference. First operand 13177 states and 18995 transitions. Second operand has 8 states, 8 states have (on average 91.125) internal successors, (729), 8 states have internal predecessors, (729), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:13:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:18,089 INFO L93 Difference]: Finished difference Result 32597 states and 47394 transitions. [2024-11-24 01:13:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:13:18,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 91.125) internal successors, (729), 8 states have internal predecessors, (729), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1079 [2024-11-24 01:13:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:18,106 INFO L225 Difference]: With dead ends: 32597 [2024-11-24 01:13:18,106 INFO L226 Difference]: Without dead ends: 23277 [2024-11-24 01:13:18,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:13:18,115 INFO L435 NwaCegarLoop]: 2864 mSDtfsCounter, 3056 mSDsluCounter, 12464 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 15328 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:18,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 15328 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:13:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23277 states. [2024-11-24 01:13:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23277 to 23227. [2024-11-24 01:13:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23227 states, 22973 states have (on average 1.443085361076046) internal successors, (33152), 22973 states have internal predecessors, (33152), 252 states have call successors, (252), 1 states have call predecessors, (252), 1 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-24 01:13:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23227 states to 23227 states and 33656 transitions. [2024-11-24 01:13:18,383 INFO L78 Accepts]: Start accepts. Automaton has 23227 states and 33656 transitions. Word has length 1079 [2024-11-24 01:13:18,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:18,384 INFO L471 AbstractCegarLoop]: Abstraction has 23227 states and 33656 transitions. [2024-11-24 01:13:18,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.125) internal successors, (729), 8 states have internal predecessors, (729), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:13:18,384 INFO L276 IsEmpty]: Start isEmpty. Operand 23227 states and 33656 transitions. [2024-11-24 01:13:18,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2024-11-24 01:13:18,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:18,415 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:13:18,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-24 01:13:18,415 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:18,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2127655620, now seen corresponding path program 1 times [2024-11-24 01:13:18,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:18,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274449507] [2024-11-24 01:13:18,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:18,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 392 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:13:28,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274449507] [2024-11-24 01:13:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274449507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688909046] [2024-11-24 01:13:28,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:28,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:28,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:28,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:28,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:13:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:31,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 01:13:31,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2024-11-24 01:13:31,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:31,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688909046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:31,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-24 01:13:31,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924209027] [2024-11-24 01:13:31,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:31,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:13:31,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:31,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:13:31,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:13:31,925 INFO L87 Difference]: Start difference. First operand 23227 states and 33656 transitions. Second operand has 9 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:13:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:33,314 INFO L93 Difference]: Finished difference Result 43853 states and 63686 transitions. [2024-11-24 01:13:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:13:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 1081 [2024-11-24 01:13:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:33,336 INFO L225 Difference]: With dead ends: 43853 [2024-11-24 01:13:33,337 INFO L226 Difference]: Without dead ends: 23423 [2024-11-24 01:13:33,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1089 GetRequests, 1075 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:13:33,354 INFO L435 NwaCegarLoop]: 1385 mSDtfsCounter, 1581 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:33,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 9619 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:13:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-11-24 01:13:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 23353. [2024-11-24 01:13:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23353 states, 23099 states have (on average 1.4406684272046408) internal successors, (33278), 23099 states have internal predecessors, (33278), 252 states have call successors, (252), 1 states have call predecessors, (252), 1 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-24 01:13:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23353 states to 23353 states and 33782 transitions. [2024-11-24 01:13:33,665 INFO L78 Accepts]: Start accepts. Automaton has 23353 states and 33782 transitions. Word has length 1081 [2024-11-24 01:13:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:33,665 INFO L471 AbstractCegarLoop]: Abstraction has 23353 states and 33782 transitions. [2024-11-24 01:13:33,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:13:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 23353 states and 33782 transitions. [2024-11-24 01:13:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2024-11-24 01:13:33,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:33,685 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:13:33,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:13:33,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:33,886 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:33,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash -578745865, now seen corresponding path program 1 times [2024-11-24 01:13:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:33,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686712402] [2024-11-24 01:13:33,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-24 01:13:42,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:42,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686712402] [2024-11-24 01:13:42,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686712402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:42,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:42,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:13:42,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934009272] [2024-11-24 01:13:42,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:42,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:13:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:42,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:13:42,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:13:42,832 INFO L87 Difference]: Start difference. First operand 23353 states and 33782 transitions. Second operand has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:13:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:43,811 INFO L93 Difference]: Finished difference Result 54883 states and 79632 transitions. [2024-11-24 01:13:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:13:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 1081 [2024-11-24 01:13:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:43,859 INFO L225 Difference]: With dead ends: 54883 [2024-11-24 01:13:43,860 INFO L226 Difference]: Without dead ends: 40053 [2024-11-24 01:13:43,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:13:43,883 INFO L435 NwaCegarLoop]: 3958 mSDtfsCounter, 4736 mSDsluCounter, 13223 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 17181 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:43,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 17181 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:13:43,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40053 states. [2024-11-24 01:13:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40053 to 23353. [2024-11-24 01:13:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23353 states, 23099 states have (on average 1.4406684272046408) internal successors, (33278), 23099 states have internal predecessors, (33278), 252 states have call successors, (252), 1 states have call predecessors, (252), 1 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-24 01:13:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23353 states to 23353 states and 33782 transitions. [2024-11-24 01:13:44,639 INFO L78 Accepts]: Start accepts. Automaton has 23353 states and 33782 transitions. Word has length 1081 [2024-11-24 01:13:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:44,639 INFO L471 AbstractCegarLoop]: Abstraction has 23353 states and 33782 transitions. [2024-11-24 01:13:44,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:13:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23353 states and 33782 transitions. [2024-11-24 01:13:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1083 [2024-11-24 01:13:44,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:44,671 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:13:44,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-24 01:13:44,672 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:44,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:44,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2092698465, now seen corresponding path program 1 times [2024-11-24 01:13:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:44,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795721298] [2024-11-24 01:13:44,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 392 proven. 3 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:13:56,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:56,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795721298] [2024-11-24 01:13:56,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795721298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:56,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373452912] [2024-11-24 01:13:56,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:56,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:56,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:56,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:14:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:02,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 5321 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-24 01:14:02,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2024-11-24 01:14:02,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:02,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373452912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:02,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:14:02,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-24 01:14:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866831788] [2024-11-24 01:14:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:02,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:14:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:02,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:14:02,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:14:02,997 INFO L87 Difference]: Start difference. First operand 23353 states and 33782 transitions. Second operand has 8 states, 8 states have (on average 86.375) internal successors, (691), 8 states have internal predecessors, (691), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 01:14:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:05,031 INFO L93 Difference]: Finished difference Result 50079 states and 72455 transitions. [2024-11-24 01:14:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:14:05,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 86.375) internal successors, (691), 8 states have internal predecessors, (691), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 1082 [2024-11-24 01:14:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:05,064 INFO L225 Difference]: With dead ends: 50079 [2024-11-24 01:14:05,064 INFO L226 Difference]: Without dead ends: 34713 [2024-11-24 01:14:05,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 1077 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:14:05,080 INFO L435 NwaCegarLoop]: 1390 mSDtfsCounter, 6653 mSDsluCounter, 5505 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6660 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:05,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6660 Valid, 6895 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:14:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34713 states. [2024-11-24 01:14:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34713 to 25677. [2024-11-24 01:14:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25677 states, 25325 states have (on average 1.4300493583415597) internal successors, (36216), 25325 states have internal predecessors, (36216), 350 states have call successors, (350), 1 states have call predecessors, (350), 1 states have return successors, (350), 350 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-24 01:14:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25677 states to 25677 states and 36916 transitions. [2024-11-24 01:14:05,796 INFO L78 Accepts]: Start accepts. Automaton has 25677 states and 36916 transitions. Word has length 1082 [2024-11-24 01:14:05,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:05,797 INFO L471 AbstractCegarLoop]: Abstraction has 25677 states and 36916 transitions. [2024-11-24 01:14:05,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.375) internal successors, (691), 8 states have internal predecessors, (691), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 01:14:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 25677 states and 36916 transitions. [2024-11-24 01:14:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1083 [2024-11-24 01:14:05,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:05,823 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:14:05,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:14:06,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:06,024 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:06,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1911303919, now seen corresponding path program 1 times [2024-11-24 01:14:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:06,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886595861] [2024-11-24 01:14:06,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:06,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-24 01:14:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886595861] [2024-11-24 01:14:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886595861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:14:15,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757866899] [2024-11-24 01:14:15,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:15,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:14:15,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:15,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:14:15,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:15,479 INFO L87 Difference]: Start difference. First operand 25677 states and 36916 transitions. Second operand has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:17,277 INFO L93 Difference]: Finished difference Result 32921 states and 47480 transitions. [2024-11-24 01:14:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:14:17,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1082 [2024-11-24 01:14:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:17,298 INFO L225 Difference]: With dead ends: 32921 [2024-11-24 01:14:17,298 INFO L226 Difference]: Without dead ends: 25727 [2024-11-24 01:14:17,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:14:17,307 INFO L435 NwaCegarLoop]: 2839 mSDtfsCounter, 2926 mSDsluCounter, 12388 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 15227 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:17,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2933 Valid, 15227 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:14:17,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25727 states. [2024-11-24 01:14:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25727 to 25677. [2024-11-24 01:14:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25677 states, 25325 states have (on average 1.4294175715695954) internal successors, (36200), 25325 states have internal predecessors, (36200), 350 states have call successors, (350), 1 states have call predecessors, (350), 1 states have return successors, (350), 350 states have call predecessors, (350), 350 states have call successors, (350) [2024-11-24 01:14:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25677 states to 25677 states and 36900 transitions. [2024-11-24 01:14:17,687 INFO L78 Accepts]: Start accepts. Automaton has 25677 states and 36900 transitions. Word has length 1082 [2024-11-24 01:14:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:17,688 INFO L471 AbstractCegarLoop]: Abstraction has 25677 states and 36900 transitions. [2024-11-24 01:14:17,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 25677 states and 36900 transitions. [2024-11-24 01:14:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1083 [2024-11-24 01:14:17,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:17,712 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:14:17,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-24 01:14:17,713 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:17,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash 110323263, now seen corresponding path program 1 times [2024-11-24 01:14:17,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:17,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721164194] [2024-11-24 01:14:17,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:17,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 392 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:27,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721164194] [2024-11-24 01:14:27,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721164194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739444729] [2024-11-24 01:14:27,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:27,755 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:14:27,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:14:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:33,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 5321 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-24 01:14:33,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 442 proven. 3 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 01:14:39,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 11 proven. 382 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739444729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:14:50,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:14:50,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 14] total 28 [2024-11-24 01:14:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151893302] [2024-11-24 01:14:50,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:14:50,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 01:14:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:50,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 01:14:50,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:14:50,533 INFO L87 Difference]: Start difference. First operand 25677 states and 36900 transitions. Second operand has 28 states, 28 states have (on average 97.0) internal successors, (2716), 28 states have internal predecessors, (2716), 9 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-24 01:15:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:05,228 INFO L93 Difference]: Finished difference Result 78401 states and 113857 transitions. [2024-11-24 01:15:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-24 01:15:05,229 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 97.0) internal successors, (2716), 28 states have internal predecessors, (2716), 9 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 1082 [2024-11-24 01:15:05,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:05,281 INFO L225 Difference]: With dead ends: 78401 [2024-11-24 01:15:05,281 INFO L226 Difference]: Without dead ends: 68105 [2024-11-24 01:15:05,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2206 GetRequests, 2145 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=521, Invalid=3385, Unknown=0, NotChecked=0, Total=3906 [2024-11-24 01:15:05,299 INFO L435 NwaCegarLoop]: 4836 mSDtfsCounter, 11816 mSDsluCounter, 79192 mSDsCounter, 0 mSdLazyCounter, 20188 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11817 SdHoareTripleChecker+Valid, 84028 SdHoareTripleChecker+Invalid, 20207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 20188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:05,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11817 Valid, 84028 Invalid, 20207 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [19 Valid, 20188 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-24 01:15:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68105 states. [2024-11-24 01:15:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68105 to 27771. [2024-11-24 01:15:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27771 states, 27337 states have (on average 1.4237846142590629) internal successors, (38922), 27337 states have internal predecessors, (38922), 432 states have call successors, (432), 1 states have call predecessors, (432), 1 states have return successors, (432), 432 states have call predecessors, (432), 432 states have call successors, (432) [2024-11-24 01:15:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27771 states to 27771 states and 39786 transitions. [2024-11-24 01:15:05,866 INFO L78 Accepts]: Start accepts. Automaton has 27771 states and 39786 transitions. Word has length 1082 [2024-11-24 01:15:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:05,867 INFO L471 AbstractCegarLoop]: Abstraction has 27771 states and 39786 transitions. [2024-11-24 01:15:05,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 97.0) internal successors, (2716), 28 states have internal predecessors, (2716), 9 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-24 01:15:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 27771 states and 39786 transitions. [2024-11-24 01:15:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2024-11-24 01:15:05,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:05,904 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:15:05,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:15:06,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-24 01:15:06,104 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:06,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:06,105 INFO L85 PathProgramCache]: Analyzing trace with hash -323044996, now seen corresponding path program 1 times [2024-11-24 01:15:06,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:15:06,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380017029] [2024-11-24 01:15:06,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:06,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:15:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 388 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:15:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:15:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380017029] [2024-11-24 01:15:17,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380017029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635645486] [2024-11-24 01:15:17,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:17,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:17,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:15:17,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:15:17,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:15:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:21,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 5324 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 01:15:21,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 532 proven. 3 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-24 01:15:23,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:15:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 359 proven. 3 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-11-24 01:15:27,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635645486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:15:27,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:15:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-24 01:15:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569544320] [2024-11-24 01:15:27,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:15:27,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:15:27,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:15:27,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:15:27,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:15:27,725 INFO L87 Difference]: Start difference. First operand 27771 states and 39786 transitions. Second operand has 23 states, 23 states have (on average 101.0) internal successors, (2323), 23 states have internal predecessors, (2323), 6 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-11-24 01:15:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:35,060 INFO L93 Difference]: Finished difference Result 66429 states and 95744 transitions. [2024-11-24 01:15:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:15:35,061 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 101.0) internal successors, (2323), 23 states have internal predecessors, (2323), 6 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 1083 [2024-11-24 01:15:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:35,114 INFO L225 Difference]: With dead ends: 66429 [2024-11-24 01:15:35,114 INFO L226 Difference]: Without dead ends: 42269 [2024-11-24 01:15:35,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2196 GetRequests, 2154 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 01:15:35,145 INFO L435 NwaCegarLoop]: 3651 mSDtfsCounter, 9285 mSDsluCounter, 44694 mSDsCounter, 0 mSdLazyCounter, 11318 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9285 SdHoareTripleChecker+Valid, 48345 SdHoareTripleChecker+Invalid, 11327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:35,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9285 Valid, 48345 Invalid, 11327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 11318 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-24 01:15:35,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42269 states. [2024-11-24 01:15:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42269 to 28237. [2024-11-24 01:15:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28237 states, 27783 states have (on average 1.4196451067199367) internal successors, (39442), 27783 states have internal predecessors, (39442), 452 states have call successors, (452), 1 states have call predecessors, (452), 1 states have return successors, (452), 452 states have call predecessors, (452), 452 states have call successors, (452) [2024-11-24 01:15:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 40346 transitions. [2024-11-24 01:15:36,027 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 40346 transitions. Word has length 1083 [2024-11-24 01:15:36,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:36,028 INFO L471 AbstractCegarLoop]: Abstraction has 28237 states and 40346 transitions. [2024-11-24 01:15:36,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 101.0) internal successors, (2323), 23 states have internal predecessors, (2323), 6 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-11-24 01:15:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 40346 transitions. [2024-11-24 01:15:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2024-11-24 01:15:36,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:36,056 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:15:36,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:15:36,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:36,257 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:36,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1004107490, now seen corresponding path program 1 times [2024-11-24 01:15:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:15:36,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526409024] [2024-11-24 01:15:36,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:15:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 326 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:15:46,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:15:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526409024] [2024-11-24 01:15:46,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526409024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445582738] [2024-11-24 01:15:46,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:46,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:46,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:15:46,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:15:46,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:15:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:53,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:15:53,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-24 01:15:53,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:15:53,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445582738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:15:53,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:15:53,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 01:15:53,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198048915] [2024-11-24 01:15:53,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:15:53,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:15:53,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:15:53,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:15:53,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:15:53,348 INFO L87 Difference]: Start difference. First operand 28237 states and 40346 transitions. Second operand has 5 states, 5 states have (on average 195.2) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 01:15:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:53,859 INFO L93 Difference]: Finished difference Result 55839 states and 80315 transitions. [2024-11-24 01:15:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:15:53,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 195.2) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 1084 [2024-11-24 01:15:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:53,891 INFO L225 Difference]: With dead ends: 55839 [2024-11-24 01:15:53,891 INFO L226 Difference]: Without dead ends: 38569 [2024-11-24 01:15:53,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1093 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:15:53,909 INFO L435 NwaCegarLoop]: 1680 mSDtfsCounter, 1355 mSDsluCounter, 5004 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:53,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 6684 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:15:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38569 states. [2024-11-24 01:15:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38569 to 29173. [2024-11-24 01:15:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29173 states, 28651 states have (on average 1.4149593382429932) internal successors, (40540), 28651 states have internal predecessors, (40540), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2024-11-24 01:15:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29173 states to 29173 states and 41580 transitions. [2024-11-24 01:15:54,613 INFO L78 Accepts]: Start accepts. Automaton has 29173 states and 41580 transitions. Word has length 1084 [2024-11-24 01:15:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:54,613 INFO L471 AbstractCegarLoop]: Abstraction has 29173 states and 41580 transitions. [2024-11-24 01:15:54,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 195.2) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 01:15:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 29173 states and 41580 transitions. [2024-11-24 01:15:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2024-11-24 01:15:54,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:54,642 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:15:54,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:15:54,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:54,842 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:54,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash 264583626, now seen corresponding path program 1 times [2024-11-24 01:15:54,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:15:54,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962964088] [2024-11-24 01:15:54,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:54,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 344 proven. 1 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-24 01:16:05,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962964088] [2024-11-24 01:16:05,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962964088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644821131] [2024-11-24 01:16:05,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:05,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:16:05,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:16:05,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:16:05,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:16:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:11,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:16:11,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:16:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-24 01:16:11,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:16:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644821131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:16:11,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:16:11,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-24 01:16:11,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664889703] [2024-11-24 01:16:11,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:16:11,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:16:11,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:11,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:16:11,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:16:11,712 INFO L87 Difference]: Start difference. First operand 29173 states and 41580 transitions. Second operand has 6 states, 5 states have (on average 196.8) internal successors, (984), 6 states have internal predecessors, (984), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:16:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:12,484 INFO L93 Difference]: Finished difference Result 54647 states and 78068 transitions. [2024-11-24 01:16:12,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:16:12,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 196.8) internal successors, (984), 6 states have internal predecessors, (984), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1084 [2024-11-24 01:16:12,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:12,524 INFO L225 Difference]: With dead ends: 54647 [2024-11-24 01:16:12,525 INFO L226 Difference]: Without dead ends: 29173 [2024-11-24 01:16:12,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1081 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:16:12,550 INFO L435 NwaCegarLoop]: 1691 mSDtfsCounter, 0 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8432 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:12,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8432 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:16:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29173 states. [2024-11-24 01:16:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29173 to 29173. [2024-11-24 01:16:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29173 states, 28651 states have (on average 1.413004781683013) internal successors, (40484), 28651 states have internal predecessors, (40484), 520 states have call successors, (520), 1 states have call predecessors, (520), 1 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2024-11-24 01:16:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29173 states to 29173 states and 41524 transitions. [2024-11-24 01:16:13,169 INFO L78 Accepts]: Start accepts. Automaton has 29173 states and 41524 transitions. Word has length 1084 [2024-11-24 01:16:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:13,169 INFO L471 AbstractCegarLoop]: Abstraction has 29173 states and 41524 transitions. [2024-11-24 01:16:13,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 196.8) internal successors, (984), 6 states have internal predecessors, (984), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:16:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 29173 states and 41524 transitions. [2024-11-24 01:16:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2024-11-24 01:16:13,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:13,198 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:16:13,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 01:16:13,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-24 01:16:13,399 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:13,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:13,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2077961816, now seen corresponding path program 1 times [2024-11-24 01:16:13,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:13,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593274168] [2024-11-24 01:16:13,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:13,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 327 proven. 67 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:16:25,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:25,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593274168] [2024-11-24 01:16:25,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593274168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:25,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614761578] [2024-11-24 01:16:25,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:25,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:16:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:16:25,026 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:16:25,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:16:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:32,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 5333 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:16:32,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:16:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 384 proven. 10 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:16:33,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:16:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:16:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614761578] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:34,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:16:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 8] total 20 [2024-11-24 01:16:34,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037261319] [2024-11-24 01:16:34,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:16:34,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:16:34,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:34,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:16:34,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:16:34,438 INFO L87 Difference]: Start difference. First operand 29173 states and 41524 transitions. Second operand has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:16:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:35,000 INFO L93 Difference]: Finished difference Result 55253 states and 78965 transitions. [2024-11-24 01:16:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:16:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1086 [2024-11-24 01:16:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:35,039 INFO L225 Difference]: With dead ends: 55253 [2024-11-24 01:16:35,039 INFO L226 Difference]: Without dead ends: 42215 [2024-11-24 01:16:35,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2182 GetRequests, 2162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:16:35,057 INFO L435 NwaCegarLoop]: 3108 mSDtfsCounter, 1094 mSDsluCounter, 14102 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 17210 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:35,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 17210 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:16:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42215 states. [2024-11-24 01:16:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42215 to 41089. [2024-11-24 01:16:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41089 states, 40391 states have (on average 1.4164541605803274) internal successors, (57212), 40391 states have internal predecessors, (57212), 696 states have call successors, (696), 1 states have call predecessors, (696), 1 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2024-11-24 01:16:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41089 states to 41089 states and 58604 transitions. [2024-11-24 01:16:35,862 INFO L78 Accepts]: Start accepts. Automaton has 41089 states and 58604 transitions. Word has length 1086 [2024-11-24 01:16:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:35,863 INFO L471 AbstractCegarLoop]: Abstraction has 41089 states and 58604 transitions. [2024-11-24 01:16:35,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:16:35,863 INFO L276 IsEmpty]: Start isEmpty. Operand 41089 states and 58604 transitions. [2024-11-24 01:16:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2024-11-24 01:16:35,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:35,899 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:16:35,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 01:16:36,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-24 01:16:36,100 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:36,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash 745139894, now seen corresponding path program 1 times [2024-11-24 01:16:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:36,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785450302] [2024-11-24 01:16:36,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2024-11-24 01:16:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785450302] [2024-11-24 01:16:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785450302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:16:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:16:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:16:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163313898] [2024-11-24 01:16:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:16:38,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:16:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:38,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:16:38,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:16:38,520 INFO L87 Difference]: Start difference. First operand 41089 states and 58604 transitions. Second operand has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:16:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:39,084 INFO L93 Difference]: Finished difference Result 71239 states and 102016 transitions. [2024-11-24 01:16:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:16:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 1086 [2024-11-24 01:16:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:39,124 INFO L225 Difference]: With dead ends: 71239 [2024-11-24 01:16:39,124 INFO L226 Difference]: Without dead ends: 41521 [2024-11-24 01:16:39,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:16:39,148 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 16 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8462 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:39,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8462 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:16:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41521 states. [2024-11-24 01:16:40,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41521 to 41521. [2024-11-24 01:16:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41521 states, 40823 states have (on average 1.4164564093770668) internal successors, (57824), 40823 states have internal predecessors, (57824), 696 states have call successors, (696), 1 states have call predecessors, (696), 1 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2024-11-24 01:16:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41521 states to 41521 states and 59216 transitions. [2024-11-24 01:16:40,353 INFO L78 Accepts]: Start accepts. Automaton has 41521 states and 59216 transitions. Word has length 1086 [2024-11-24 01:16:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:40,354 INFO L471 AbstractCegarLoop]: Abstraction has 41521 states and 59216 transitions. [2024-11-24 01:16:40,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:16:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 41521 states and 59216 transitions. [2024-11-24 01:16:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2024-11-24 01:16:40,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:40,423 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:16:40,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-24 01:16:40,423 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:40,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1121889004, now seen corresponding path program 1 times [2024-11-24 01:16:40,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:40,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478175319] [2024-11-24 01:16:40,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:40,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2024-11-24 01:16:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478175319] [2024-11-24 01:16:44,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478175319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:16:44,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:16:44,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:16:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863591384] [2024-11-24 01:16:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:16:44,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:16:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:16:44,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:16:44,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:16:44,558 INFO L87 Difference]: Start difference. First operand 41521 states and 59216 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:16:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:16:45,306 INFO L93 Difference]: Finished difference Result 67815 states and 96952 transitions. [2024-11-24 01:16:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:16:45,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 1087 [2024-11-24 01:16:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:16:45,344 INFO L225 Difference]: With dead ends: 67815 [2024-11-24 01:16:45,345 INFO L226 Difference]: Without dead ends: 41641 [2024-11-24 01:16:45,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:16:45,367 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 1 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10041 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:16:45,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10041 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:16:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41641 states. [2024-11-24 01:16:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41641 to 41641. [2024-11-24 01:16:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41641 states, 40943 states have (on average 1.4158219964340668) internal successors, (57968), 40943 states have internal predecessors, (57968), 696 states have call successors, (696), 1 states have call predecessors, (696), 1 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2024-11-24 01:16:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41641 states to 41641 states and 59360 transitions. [2024-11-24 01:16:46,028 INFO L78 Accepts]: Start accepts. Automaton has 41641 states and 59360 transitions. Word has length 1087 [2024-11-24 01:16:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:16:46,029 INFO L471 AbstractCegarLoop]: Abstraction has 41641 states and 59360 transitions. [2024-11-24 01:16:46,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-24 01:16:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 41641 states and 59360 transitions. [2024-11-24 01:16:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2024-11-24 01:16:46,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:16:46,066 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:16:46,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-24 01:16:46,066 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:16:46,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:16:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash 327042096, now seen corresponding path program 1 times [2024-11-24 01:16:46,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:16:46,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138435959] [2024-11-24 01:16:46,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:46,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:16:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:16:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 344 proven. 1 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2024-11-24 01:16:58,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:16:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138435959] [2024-11-24 01:16:58,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138435959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473673784] [2024-11-24 01:16:58,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:16:58,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:16:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:16:58,460 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:16:58,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:17:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:05,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 5334 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:17:05,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:17:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-24 01:17:06,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:17:06,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473673784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:06,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:17:06,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-24 01:17:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397987461] [2024-11-24 01:17:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:06,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:17:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:06,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:17:06,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:17:06,308 INFO L87 Difference]: Start difference. First operand 41641 states and 59360 transitions. Second operand has 8 states, 8 states have (on average 127.5) internal successors, (1020), 8 states have internal predecessors, (1020), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:17:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:08,093 INFO L93 Difference]: Finished difference Result 84259 states and 120126 transitions. [2024-11-24 01:17:08,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:17:08,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 127.5) internal successors, (1020), 8 states have internal predecessors, (1020), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 1087 [2024-11-24 01:17:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:08,148 INFO L225 Difference]: With dead ends: 84259 [2024-11-24 01:17:08,148 INFO L226 Difference]: Without dead ends: 58069 [2024-11-24 01:17:08,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:17:08,175 INFO L435 NwaCegarLoop]: 1403 mSDtfsCounter, 4118 mSDsluCounter, 5418 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4132 SdHoareTripleChecker+Valid, 6821 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:08,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4132 Valid, 6821 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:17:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58069 states. [2024-11-24 01:17:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58069 to 56973. [2024-11-24 01:17:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56973 states, 55931 states have (on average 1.4108097477248753) internal successors, (78908), 55931 states have internal predecessors, (78908), 1040 states have call successors, (1040), 1 states have call predecessors, (1040), 1 states have return successors, (1040), 1040 states have call predecessors, (1040), 1040 states have call successors, (1040) [2024-11-24 01:17:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56973 states to 56973 states and 80988 transitions. [2024-11-24 01:17:09,190 INFO L78 Accepts]: Start accepts. Automaton has 56973 states and 80988 transitions. Word has length 1087 [2024-11-24 01:17:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:09,190 INFO L471 AbstractCegarLoop]: Abstraction has 56973 states and 80988 transitions. [2024-11-24 01:17:09,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.5) internal successors, (1020), 8 states have internal predecessors, (1020), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:17:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 56973 states and 80988 transitions. [2024-11-24 01:17:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2024-11-24 01:17:09,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:09,244 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:17:09,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-24 01:17:09,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:17:09,445 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1216779060, now seen corresponding path program 1 times [2024-11-24 01:17:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961761475] [2024-11-24 01:17:09,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:17:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 387 proven. 8 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:17:22,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:17:22,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961761475] [2024-11-24 01:17:22,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961761475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:17:22,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429478957] [2024-11-24 01:17:22,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:22,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:17:22,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:17:22,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:17:22,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:17:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:30,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 5335 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 01:17:30,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:17:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 424 proven. 67 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-24 01:17:35,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:17:38,111 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 328 proven. 67 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:17:38,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429478957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:17:38,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:17:38,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 27 [2024-11-24 01:17:38,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398169152] [2024-11-24 01:17:38,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:17:38,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 01:17:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:17:38,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 01:17:38,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:17:38,118 INFO L87 Difference]: Start difference. First operand 56973 states and 80988 transitions. Second operand has 27 states, 27 states have (on average 88.88888888888889) internal successors, (2400), 27 states have internal predecessors, (2400), 8 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 8 states have call predecessors, (40), 8 states have call successors, (40) [2024-11-24 01:17:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:48,633 INFO L93 Difference]: Finished difference Result 136849 states and 196243 transitions. [2024-11-24 01:17:48,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:17:48,634 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 88.88888888888889) internal successors, (2400), 27 states have internal predecessors, (2400), 8 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 8 states have call predecessors, (40), 8 states have call successors, (40) Word has length 1088 [2024-11-24 01:17:48,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:48,732 INFO L225 Difference]: With dead ends: 136849 [2024-11-24 01:17:48,732 INFO L226 Difference]: Without dead ends: 111527 [2024-11-24 01:17:48,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2204 GetRequests, 2159 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=346, Invalid=1816, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 01:17:48,767 INFO L435 NwaCegarLoop]: 3581 mSDtfsCounter, 10938 mSDsluCounter, 42020 mSDsCounter, 0 mSdLazyCounter, 13549 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10945 SdHoareTripleChecker+Valid, 45601 SdHoareTripleChecker+Invalid, 13577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 13549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:48,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10945 Valid, 45601 Invalid, 13577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 13549 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-24 01:17:48,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111527 states. [2024-11-24 01:17:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111527 to 59629. [2024-11-24 01:17:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59629 states, 58475 states have (on average 1.4073022659256091) internal successors, (82292), 58475 states have internal predecessors, (82292), 1152 states have call successors, (1152), 1 states have call predecessors, (1152), 1 states have return successors, (1152), 1152 states have call predecessors, (1152), 1152 states have call successors, (1152) [2024-11-24 01:17:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59629 states to 59629 states and 84596 transitions. [2024-11-24 01:17:50,195 INFO L78 Accepts]: Start accepts. Automaton has 59629 states and 84596 transitions. Word has length 1088 [2024-11-24 01:17:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:50,195 INFO L471 AbstractCegarLoop]: Abstraction has 59629 states and 84596 transitions. [2024-11-24 01:17:50,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 88.88888888888889) internal successors, (2400), 27 states have internal predecessors, (2400), 8 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 8 states have call predecessors, (40), 8 states have call successors, (40) [2024-11-24 01:17:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 59629 states and 84596 transitions. [2024-11-24 01:17:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2024-11-24 01:17:50,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:50,451 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:17:50,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:17:50,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-11-24 01:17:50,652 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:50,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1312870990, now seen corresponding path program 1 times [2024-11-24 01:17:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:17:50,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192824390] [2024-11-24 01:17:50,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:18:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 318 proven. 79 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:18:03,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:18:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192824390] [2024-11-24 01:18:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192824390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:18:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032614383] [2024-11-24 01:18:03,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:03,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:18:03,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:18:03,531 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:18:03,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:18:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:11,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 5336 conjuncts, 213 conjuncts are in the unsatisfiable core [2024-11-24 01:18:11,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:18:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-24 01:18:21,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:18:21,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032614383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:18:21,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:18:21,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [9] total 29 [2024-11-24 01:18:21,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167548756] [2024-11-24 01:18:21,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:18:21,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:18:21,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:18:21,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:18:21,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:18:21,476 INFO L87 Difference]: Start difference. First operand 59629 states and 84596 transitions. Second operand has 22 states, 22 states have (on average 46.59090909090909) internal successors, (1025), 22 states have internal predecessors, (1025), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:18:28,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:18:28,800 INFO L93 Difference]: Finished difference Result 155465 states and 221239 transitions. [2024-11-24 01:18:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:18:28,801 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 46.59090909090909) internal successors, (1025), 22 states have internal predecessors, (1025), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 1089 [2024-11-24 01:18:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:18:28,908 INFO L225 Difference]: With dead ends: 155465 [2024-11-24 01:18:28,908 INFO L226 Difference]: Without dead ends: 119671 [2024-11-24 01:18:28,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1070 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:18:28,947 INFO L435 NwaCegarLoop]: 1487 mSDtfsCounter, 6884 mSDsluCounter, 24676 mSDsCounter, 0 mSdLazyCounter, 8075 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 26163 SdHoareTripleChecker+Invalid, 8080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:18:28,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6902 Valid, 26163 Invalid, 8080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 8075 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-24 01:18:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119671 states. [2024-11-24 01:18:30,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119671 to 92789. [2024-11-24 01:18:30,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92789 states, 90995 states have (on average 1.4052860047255344) internal successors, (127874), 90995 states have internal predecessors, (127874), 1792 states have call successors, (1792), 1 states have call predecessors, (1792), 1 states have return successors, (1792), 1792 states have call predecessors, (1792), 1792 states have call successors, (1792) [2024-11-24 01:18:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92789 states to 92789 states and 131458 transitions. [2024-11-24 01:18:30,899 INFO L78 Accepts]: Start accepts. Automaton has 92789 states and 131458 transitions. Word has length 1089 [2024-11-24 01:18:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:18:30,900 INFO L471 AbstractCegarLoop]: Abstraction has 92789 states and 131458 transitions. [2024-11-24 01:18:30,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 46.59090909090909) internal successors, (1025), 22 states have internal predecessors, (1025), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:18:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 92789 states and 131458 transitions. [2024-11-24 01:18:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2024-11-24 01:18:30,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:18:30,981 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:18:31,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 01:18:31,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:18:31,181 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:18:31,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:18:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 661424110, now seen corresponding path program 1 times [2024-11-24 01:18:31,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:18:31,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267285743] [2024-11-24 01:18:31,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:18:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 318 proven. 77 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:18:41,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:18:41,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267285743] [2024-11-24 01:18:41,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267285743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:18:41,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736955883] [2024-11-24 01:18:41,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:41,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:18:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:18:41,089 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:18:41,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 01:18:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:48,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 5336 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-24 01:18:48,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:18:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 395 proven. 88 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-24 01:18:55,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:19:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 71 proven. 363 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:19:07,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736955883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:19:07,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:19:07,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 27, 29] total 60 [2024-11-24 01:19:07,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459226615] [2024-11-24 01:19:07,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:19:07,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-24 01:19:07,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:19:07,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-24 01:19:07,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=3182, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 01:19:07,200 INFO L87 Difference]: Start difference. First operand 92789 states and 131458 transitions. Second operand has 60 states, 58 states have (on average 46.56896551724138) internal successors, (2701), 60 states have internal predecessors, (2701), 15 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 13 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-24 01:19:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:19:52,728 INFO L93 Difference]: Finished difference Result 271683 states and 391352 transitions. [2024-11-24 01:19:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-11-24 01:19:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 58 states have (on average 46.56896551724138) internal successors, (2701), 60 states have internal predecessors, (2701), 15 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 13 states have call predecessors, (42), 15 states have call successors, (42) Word has length 1089 [2024-11-24 01:19:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:19:52,919 INFO L225 Difference]: With dead ends: 271683 [2024-11-24 01:19:52,919 INFO L226 Difference]: Without dead ends: 238161 [2024-11-24 01:19:52,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2301 GetRequests, 2127 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8728 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=3664, Invalid=27136, Unknown=0, NotChecked=0, Total=30800 [2024-11-24 01:19:52,954 INFO L435 NwaCegarLoop]: 5722 mSDtfsCounter, 62762 mSDsluCounter, 174574 mSDsCounter, 0 mSdLazyCounter, 54370 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62769 SdHoareTripleChecker+Valid, 180296 SdHoareTripleChecker+Invalid, 54536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 54370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:19:52,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62769 Valid, 180296 Invalid, 54536 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [166 Valid, 54370 Invalid, 0 Unknown, 0 Unchecked, 33.1s Time] [2024-11-24 01:19:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238161 states. [2024-11-24 01:19:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238161 to 128089. [2024-11-24 01:19:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128089 states, 126155 states have (on average 1.4190955570528319) internal successors, (179026), 126155 states have internal predecessors, (179026), 1932 states have call successors, (1932), 1 states have call predecessors, (1932), 1 states have return successors, (1932), 1932 states have call predecessors, (1932), 1932 states have call successors, (1932) [2024-11-24 01:19:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128089 states to 128089 states and 182890 transitions. [2024-11-24 01:19:55,992 INFO L78 Accepts]: Start accepts. Automaton has 128089 states and 182890 transitions. Word has length 1089 [2024-11-24 01:19:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:19:55,992 INFO L471 AbstractCegarLoop]: Abstraction has 128089 states and 182890 transitions. [2024-11-24 01:19:55,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 58 states have (on average 46.56896551724138) internal successors, (2701), 60 states have internal predecessors, (2701), 15 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 13 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-24 01:19:55,993 INFO L276 IsEmpty]: Start isEmpty. Operand 128089 states and 182890 transitions. [2024-11-24 01:19:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2024-11-24 01:19:56,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:19:56,121 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:19:56,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-24 01:19:56,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-24 01:19:56,322 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:19:56,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:19:56,323 INFO L85 PathProgramCache]: Analyzing trace with hash -317484933, now seen corresponding path program 1 times [2024-11-24 01:19:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:19:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358249961] [2024-11-24 01:19:56,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:19:56,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:20:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:20:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 304 proven. 93 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:20:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:20:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358249961] [2024-11-24 01:20:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358249961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:20:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681849250] [2024-11-24 01:20:21,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:20:21,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:20:21,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:20:21,037 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:20:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 01:20:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:20:29,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 5337 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:20:29,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:20:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-24 01:20:29,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:20:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681849250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:20:29,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:20:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2024-11-24 01:20:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008168458] [2024-11-24 01:20:29,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:20:29,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:20:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:20:29,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:20:29,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:20:29,276 INFO L87 Difference]: Start difference. First operand 128089 states and 182890 transitions. Second operand has 6 states, 5 states have (on average 195.2) internal successors, (976), 6 states have internal predecessors, (976), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:20:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:20:31,100 INFO L93 Difference]: Finished difference Result 204947 states and 293896 transitions. [2024-11-24 01:20:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:20:31,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 195.2) internal successors, (976), 6 states have internal predecessors, (976), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 1090 [2024-11-24 01:20:31,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:20:31,227 INFO L225 Difference]: With dead ends: 204947 [2024-11-24 01:20:31,227 INFO L226 Difference]: Without dead ends: 128089 [2024-11-24 01:20:31,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:20:31,292 INFO L435 NwaCegarLoop]: 1692 mSDtfsCounter, 0 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8433 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:20:31,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8433 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:20:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128089 states. [2024-11-24 01:20:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128089 to 127929. [2024-11-24 01:20:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127929 states, 125995 states have (on average 1.4170879796817335) internal successors, (178546), 125995 states have internal predecessors, (178546), 1932 states have call successors, (1932), 1 states have call predecessors, (1932), 1 states have return successors, (1932), 1932 states have call predecessors, (1932), 1932 states have call successors, (1932) [2024-11-24 01:20:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127929 states to 127929 states and 182410 transitions. [2024-11-24 01:20:35,237 INFO L78 Accepts]: Start accepts. Automaton has 127929 states and 182410 transitions. Word has length 1090 [2024-11-24 01:20:35,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:20:35,238 INFO L471 AbstractCegarLoop]: Abstraction has 127929 states and 182410 transitions. [2024-11-24 01:20:35,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 195.2) internal successors, (976), 6 states have internal predecessors, (976), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:20:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 127929 states and 182410 transitions. [2024-11-24 01:20:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2024-11-24 01:20:35,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:20:35,360 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:20:35,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-24 01:20:35,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-24 01:20:35,561 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:20:35,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:20:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2036460837, now seen corresponding path program 1 times [2024-11-24 01:20:35,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:20:35,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829733272] [2024-11-24 01:20:35,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:20:35,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:20:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:20:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 2 proven. 397 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:20:55,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:20:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829733272] [2024-11-24 01:20:55,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829733272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:20:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000425332] [2024-11-24 01:20:55,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:20:55,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:20:55,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:20:55,951 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:20:55,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 01:21:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:04,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 5337 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:21:04,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2024-11-24 01:21:04,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:04,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000425332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:04,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:04,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-11-24 01:21:04,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830215213] [2024-11-24 01:21:04,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:04,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:21:04,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:04,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:21:04,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:21:04,300 INFO L87 Difference]: Start difference. First operand 127929 states and 182410 transitions. Second operand has 6 states, 5 states have (on average 132.4) internal successors, (662), 6 states have internal predecessors, (662), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:21:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:06,984 INFO L93 Difference]: Finished difference Result 246655 states and 351988 transitions. [2024-11-24 01:21:06,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:21:06,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 132.4) internal successors, (662), 6 states have internal predecessors, (662), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 1090 [2024-11-24 01:21:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:07,127 INFO L225 Difference]: With dead ends: 246655 [2024-11-24 01:21:07,127 INFO L226 Difference]: Without dead ends: 127929 [2024-11-24 01:21:07,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1090 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:21:07,182 INFO L435 NwaCegarLoop]: 1689 mSDtfsCounter, 0 mSDsluCounter, 6733 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8422 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:07,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8422 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:21:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127929 states. [2024-11-24 01:21:10,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127929 to 127929. [2024-11-24 01:21:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127929 states, 125995 states have (on average 1.415183142188182) internal successors, (178306), 125995 states have internal predecessors, (178306), 1932 states have call successors, (1932), 1 states have call predecessors, (1932), 1 states have return successors, (1932), 1932 states have call predecessors, (1932), 1932 states have call successors, (1932) [2024-11-24 01:21:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127929 states to 127929 states and 182170 transitions. [2024-11-24 01:21:10,716 INFO L78 Accepts]: Start accepts. Automaton has 127929 states and 182170 transitions. Word has length 1090 [2024-11-24 01:21:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:10,716 INFO L471 AbstractCegarLoop]: Abstraction has 127929 states and 182170 transitions. [2024-11-24 01:21:10,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 132.4) internal successors, (662), 6 states have internal predecessors, (662), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:21:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 127929 states and 182170 transitions. [2024-11-24 01:21:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2024-11-24 01:21:10,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:10,872 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 01:21:10,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:11,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2122921d-cd43-4174-b546-9d095fd3f6b8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-24 01:21:11,072 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:11,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1877176805, now seen corresponding path program 1 times [2024-11-24 01:21:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120449432] [2024-11-24 01:21:11,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:11,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat