./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/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_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/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 32bit --witnessprinter.graph.data.programhash e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:06:12,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:06:12,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:06:12,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:06:12,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:06:12,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:06:12,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:06:12,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:06:12,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:06:12,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:06:12,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:06:12,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:06:12,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:06:12,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:06:12,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:06:12,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:06:12,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:06:12,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:06:12,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:06:12,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:06:12,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:06:12,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:06:12,972 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:06:12,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:12,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:12,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:12,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:12,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:06:12,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:12,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:12,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:12,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:12,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:06:12,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:06:12,975 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_88c04296-4c40-454f-9826-c1004a9aad1e/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 [2024-11-24 00:06:13,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:06:13,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:06:13,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:06:13,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:06:13,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:06:13,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-24 00:06:16,659 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/data/c98ad93ab/908e6c60122a4bc28d408d1c75046aa0/FLAGd18be7392 [2024-11-24 00:06:17,307 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:06:17,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-24 00:06:17,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/data/c98ad93ab/908e6c60122a4bc28d408d1c75046aa0/FLAGd18be7392 [2024-11-24 00:06:17,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/data/c98ad93ab/908e6c60122a4bc28d408d1c75046aa0 [2024-11-24 00:06:17,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:06:17,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:06:17,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:17,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:06:17,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:06:17,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:17" (1/1) ... [2024-11-24 00:06:17,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:17, skipping insertion in model container [2024-11-24 00:06:17,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:17" (1/1) ... [2024-11-24 00:06:17,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:06:17,911 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_88c04296-4c40-454f-9826-c1004a9aad1e/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-11-24 00:06:17,972 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_88c04296-4c40-454f-9826-c1004a9aad1e/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-11-24 00:06:18,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:18,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:06:18,885 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_88c04296-4c40-454f-9826-c1004a9aad1e/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-11-24 00:06:18,891 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_88c04296-4c40-454f-9826-c1004a9aad1e/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-11-24 00:06:19,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:19,501 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:06:19,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19 WrapperNode [2024-11-24 00:06:19,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:19,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:19,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:06:19,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:06:19,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:19,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,014 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-11-24 00:06:20,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:20,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:06:20,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:06:20,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:06:20,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,371 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 00:06:20,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:06:20,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:06:20,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:06:20,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:06:20,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (1/1) ... [2024-11-24 00:06:20,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:20,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:06:20,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:06:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:06:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:06:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:06:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:06:21,018 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:06:21,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:06:28,014 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-24 00:06:28,015 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:06:28,070 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:06:28,074 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-24 00:06:28,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:28 BoogieIcfgContainer [2024-11-24 00:06:28,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:06:28,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:06:28,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:06:28,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:06:28,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:06:17" (1/3) ... [2024-11-24 00:06:28,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9b095b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:28, skipping insertion in model container [2024-11-24 00:06:28,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:19" (2/3) ... [2024-11-24 00:06:28,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9b095b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:28, skipping insertion in model container [2024-11-24 00:06:28,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:28" (3/3) ... [2024-11-24 00:06:28,090 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-24 00:06:28,110 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:06:28,115 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 00:06:28,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:28,257 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;@70248b98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:28,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:06:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 00:06:28,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:28,279 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:28,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:28,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1849265899, now seen corresponding path program 1 times [2024-11-24 00:06:28,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:28,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106599495] [2024-11-24 00:06:28,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:28,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:28,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:28,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106599495] [2024-11-24 00:06:28,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106599495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:28,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:28,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:06:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557944933] [2024-11-24 00:06:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:28,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:28,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:28,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:28,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:28,776 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:34,212 INFO L93 Difference]: Finished difference Result 2518 states and 4848 transitions. [2024-11-24 00:06:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:34,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-24 00:06:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:34,246 INFO L225 Difference]: With dead ends: 2518 [2024-11-24 00:06:34,246 INFO L226 Difference]: Without dead ends: 1585 [2024-11-24 00:06:34,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:34,258 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 1013 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:34,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 297 Invalid, 3208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 00:06:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-24 00:06:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-11-24 00:06:34,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.8408085912823753) internal successors, (2914), 1584 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2914 transitions. [2024-11-24 00:06:34,380 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2914 transitions. Word has length 24 [2024-11-24 00:06:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:34,381 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2914 transitions. [2024-11-24 00:06:34,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2914 transitions. [2024-11-24 00:06:34,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 00:06:34,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:34,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:34,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:06:34,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-11-24 00:06:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:34,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250741853] [2024-11-24 00:06:34,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:34,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:34,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:34,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250741853] [2024-11-24 00:06:34,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250741853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:34,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:34,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:34,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976552385] [2024-11-24 00:06:34,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:34,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:34,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:34,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:34,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:34,767 INFO L87 Difference]: Start difference. First operand 1585 states and 2914 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:34,896 INFO L93 Difference]: Finished difference Result 1632 states and 2986 transitions. [2024-11-24 00:06:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:06:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-24 00:06:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:34,904 INFO L225 Difference]: With dead ends: 1632 [2024-11-24 00:06:34,905 INFO L226 Difference]: Without dead ends: 1585 [2024-11-24 00:06:34,906 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 00:06:34,909 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:34,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-24 00:06:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-11-24 00:06:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.82122552116235) internal successors, (2883), 1584 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2883 transitions. [2024-11-24 00:06:34,985 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2883 transitions. Word has length 25 [2024-11-24 00:06:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:34,985 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2883 transitions. [2024-11-24 00:06:34,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2883 transitions. [2024-11-24 00:06:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 00:06:34,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:34,987 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:34,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:06:34,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:34,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-11-24 00:06:34,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731177487] [2024-11-24 00:06:34,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:34,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:35,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:35,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731177487] [2024-11-24 00:06:35,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731177487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:35,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:35,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:35,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657370970] [2024-11-24 00:06:35,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:35,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:35,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:35,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:35,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:35,327 INFO L87 Difference]: Start difference. First operand 1585 states and 2883 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:35,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:35,674 INFO L93 Difference]: Finished difference Result 2015 states and 3563 transitions. [2024-11-24 00:06:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:06:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-24 00:06:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:35,685 INFO L225 Difference]: With dead ends: 2015 [2024-11-24 00:06:35,685 INFO L226 Difference]: Without dead ends: 1972 [2024-11-24 00:06:35,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:06:35,688 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:35,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:06:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-11-24 00:06:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1626. [2024-11-24 00:06:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1624 states have (on average 1.8152709359605912) internal successors, (2948), 1625 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:35,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2948 transitions. [2024-11-24 00:06:35,748 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2948 transitions. Word has length 55 [2024-11-24 00:06:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:35,749 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2948 transitions. [2024-11-24 00:06:35,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2948 transitions. [2024-11-24 00:06:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:06:35,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:35,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:35,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:06:35,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:35,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-11-24 00:06:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721821524] [2024-11-24 00:06:35,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:35,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:35,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721821524] [2024-11-24 00:06:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721821524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:35,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:35,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42818892] [2024-11-24 00:06:35,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:35,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:35,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:35,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:35,927 INFO L87 Difference]: Start difference. First operand 1626 states and 2948 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:35,976 INFO L93 Difference]: Finished difference Result 1783 states and 3195 transitions. [2024-11-24 00:06:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-24 00:06:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:35,984 INFO L225 Difference]: With dead ends: 1783 [2024-11-24 00:06:35,984 INFO L226 Difference]: Without dead ends: 1699 [2024-11-24 00:06:35,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:35,990 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:35,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:35,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-11-24 00:06:36,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-11-24 00:06:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.8041297935103244) internal successors, (3058), 1696 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:36,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 3058 transitions. [2024-11-24 00:06:36,052 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 3058 transitions. Word has length 57 [2024-11-24 00:06:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:36,054 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 3058 transitions. [2024-11-24 00:06:36,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 3058 transitions. [2024-11-24 00:06:36,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:06:36,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:36,058 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:36,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:06:36,058 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:36,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-11-24 00:06:36,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:36,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420644651] [2024-11-24 00:06:36,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:36,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420644651] [2024-11-24 00:06:36,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420644651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:36,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:36,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:36,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316943421] [2024-11-24 00:06:36,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:36,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:36,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:36,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:36,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:36,566 INFO L87 Difference]: Start difference. First operand 1697 states and 3058 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:36,837 INFO L93 Difference]: Finished difference Result 1854 states and 3302 transitions. [2024-11-24 00:06:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-24 00:06:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:36,846 INFO L225 Difference]: With dead ends: 1854 [2024-11-24 00:06:36,846 INFO L226 Difference]: Without dead ends: 1699 [2024-11-24 00:06:36,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:06:36,849 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 2994 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:36,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1800 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-11-24 00:06:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-11-24 00:06:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.8029498525073746) internal successors, (3056), 1696 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 3056 transitions. [2024-11-24 00:06:36,901 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 3056 transitions. Word has length 57 [2024-11-24 00:06:36,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:36,902 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 3056 transitions. [2024-11-24 00:06:36,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 3056 transitions. [2024-11-24 00:06:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 00:06:36,904 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:36,904 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:36,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:06:36,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-11-24 00:06:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102792288] [2024-11-24 00:06:36,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:37,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102792288] [2024-11-24 00:06:37,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102792288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:37,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:37,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:06:37,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861478706] [2024-11-24 00:06:37,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:37,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:06:37,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:37,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:06:37,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:37,373 INFO L87 Difference]: Start difference. First operand 1697 states and 3056 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:37,475 INFO L93 Difference]: Finished difference Result 1705 states and 3065 transitions. [2024-11-24 00:06:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:06:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-24 00:06:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:37,486 INFO L225 Difference]: With dead ends: 1705 [2024-11-24 00:06:37,487 INFO L226 Difference]: Without dead ends: 1703 [2024-11-24 00:06:37,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:06:37,489 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:37,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:37,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-24 00:06:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2024-11-24 00:06:37,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1701 states have (on average 1.7995296884185774) internal successors, (3061), 1702 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 3061 transitions. [2024-11-24 00:06:37,540 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 3061 transitions. Word has length 58 [2024-11-24 00:06:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:37,540 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 3061 transitions. [2024-11-24 00:06:37,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 3061 transitions. [2024-11-24 00:06:37,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:06:37,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:37,542 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:37,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:06:37,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:37,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-11-24 00:06:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269902072] [2024-11-24 00:06:37,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:37,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:37,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269902072] [2024-11-24 00:06:37,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269902072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:37,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919310374] [2024-11-24 00:06:37,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:37,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:37,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:37,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:37,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:37,647 INFO L87 Difference]: Start difference. First operand 1703 states and 3061 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:37,696 INFO L93 Difference]: Finished difference Result 1878 states and 3327 transitions. [2024-11-24 00:06:37,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:37,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-24 00:06:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:37,707 INFO L225 Difference]: With dead ends: 1878 [2024-11-24 00:06:37,707 INFO L226 Difference]: Without dead ends: 1788 [2024-11-24 00:06:37,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:37,710 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:37,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-11-24 00:06:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1786. [2024-11-24 00:06:37,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1784 states have (on average 1.7853139013452914) internal successors, (3185), 1785 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 3185 transitions. [2024-11-24 00:06:37,767 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 3185 transitions. Word has length 59 [2024-11-24 00:06:37,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:37,768 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 3185 transitions. [2024-11-24 00:06:37,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 3185 transitions. [2024-11-24 00:06:37,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:06:37,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:37,770 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:37,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:06:37,770 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:37,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:37,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-11-24 00:06:37,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:37,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98570566] [2024-11-24 00:06:37,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:37,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:37,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:37,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98570566] [2024-11-24 00:06:37,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98570566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:37,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:37,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:37,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228597625] [2024-11-24 00:06:37,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:37,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:37,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:37,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:37,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:37,893 INFO L87 Difference]: Start difference. First operand 1786 states and 3185 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:37,950 INFO L93 Difference]: Finished difference Result 2244 states and 3877 transitions. [2024-11-24 00:06:37,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-24 00:06:37,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:37,960 INFO L225 Difference]: With dead ends: 2244 [2024-11-24 00:06:37,960 INFO L226 Difference]: Without dead ends: 2003 [2024-11-24 00:06:37,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:37,962 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:37,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2024-11-24 00:06:38,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2001. [2024-11-24 00:06:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1999 states have (on average 1.752376188094047) internal successors, (3503), 2000 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 3503 transitions. [2024-11-24 00:06:38,029 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 3503 transitions. Word has length 59 [2024-11-24 00:06:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:38,030 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 3503 transitions. [2024-11-24 00:06:38,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 3503 transitions. [2024-11-24 00:06:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:06:38,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:38,031 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:38,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:06:38,031 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:38,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:38,032 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-11-24 00:06:38,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:38,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877478678] [2024-11-24 00:06:38,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:38,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:38,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:38,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877478678] [2024-11-24 00:06:38,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877478678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:38,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:38,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:38,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042756983] [2024-11-24 00:06:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:38,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:38,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:38,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:38,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,129 INFO L87 Difference]: Start difference. First operand 2001 states and 3503 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:38,199 INFO L93 Difference]: Finished difference Result 2865 states and 4789 transitions. [2024-11-24 00:06:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-24 00:06:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:38,211 INFO L225 Difference]: With dead ends: 2865 [2024-11-24 00:06:38,211 INFO L226 Difference]: Without dead ends: 2409 [2024-11-24 00:06:38,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,215 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:38,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2024-11-24 00:06:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2407. [2024-11-24 00:06:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2405 states have (on average 1.701039501039501) internal successors, (4091), 2406 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4091 transitions. [2024-11-24 00:06:38,290 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4091 transitions. Word has length 59 [2024-11-24 00:06:38,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:38,290 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4091 transitions. [2024-11-24 00:06:38,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4091 transitions. [2024-11-24 00:06:38,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:06:38,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:38,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:38,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:06:38,292 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:38,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-11-24 00:06:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281194237] [2024-11-24 00:06:38,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:38,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281194237] [2024-11-24 00:06:38,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281194237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:38,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:38,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095750513] [2024-11-24 00:06:38,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:38,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:38,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:38,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:38,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,386 INFO L87 Difference]: Start difference. First operand 2407 states and 4091 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:38,461 INFO L93 Difference]: Finished difference Result 4035 states and 6469 transitions. [2024-11-24 00:06:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:38,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-24 00:06:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:38,474 INFO L225 Difference]: With dead ends: 4035 [2024-11-24 00:06:38,474 INFO L226 Difference]: Without dead ends: 3173 [2024-11-24 00:06:38,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,478 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:38,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-24 00:06:38,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3171. [2024-11-24 00:06:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3169 states have (on average 1.631745029977911) internal successors, (5171), 3170 states have internal predecessors, (5171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 5171 transitions. [2024-11-24 00:06:38,645 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 5171 transitions. Word has length 59 [2024-11-24 00:06:38,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:38,645 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 5171 transitions. [2024-11-24 00:06:38,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 5171 transitions. [2024-11-24 00:06:38,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:06:38,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:38,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:38,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:06:38,647 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:38,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:38,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-11-24 00:06:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:38,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398346485] [2024-11-24 00:06:38,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:38,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:38,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:38,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398346485] [2024-11-24 00:06:38,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398346485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:38,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:38,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:38,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950049579] [2024-11-24 00:06:38,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:38,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:38,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:38,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:38,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,738 INFO L87 Difference]: Start difference. First operand 3171 states and 5171 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:38,856 INFO L93 Difference]: Finished difference Result 6231 states and 9541 transitions. [2024-11-24 00:06:38,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:38,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-24 00:06:38,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:38,888 INFO L225 Difference]: With dead ends: 6231 [2024-11-24 00:06:38,888 INFO L226 Difference]: Without dead ends: 4605 [2024-11-24 00:06:38,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:38,893 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:38,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2024-11-24 00:06:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4603. [2024-11-24 00:06:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4601 states have (on average 1.5516192132145186) internal successors, (7139), 4602 states have internal predecessors, (7139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 7139 transitions. [2024-11-24 00:06:39,069 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 7139 transitions. Word has length 59 [2024-11-24 00:06:39,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:39,069 INFO L471 AbstractCegarLoop]: Abstraction has 4603 states and 7139 transitions. [2024-11-24 00:06:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 7139 transitions. [2024-11-24 00:06:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:06:39,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:39,077 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:39,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:06:39,077 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:39,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-11-24 00:06:39,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:39,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490807628] [2024-11-24 00:06:39,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:06:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490807628] [2024-11-24 00:06:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490807628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:39,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:39,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583529979] [2024-11-24 00:06:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:39,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:39,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:39,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:39,318 INFO L87 Difference]: Start difference. First operand 4603 states and 7139 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:39,994 INFO L93 Difference]: Finished difference Result 19671 states and 28409 transitions. [2024-11-24 00:06:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:39,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-24 00:06:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:40,059 INFO L225 Difference]: With dead ends: 19671 [2024-11-24 00:06:40,059 INFO L226 Difference]: Without dead ends: 17493 [2024-11-24 00:06:40,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:06:40,068 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6312 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 3729 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:40,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 3729 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17493 states. [2024-11-24 00:06:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17493 to 7227. [2024-11-24 00:06:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7225 states have (on average 1.4952249134948097) internal successors, (10803), 7226 states have internal predecessors, (10803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 10803 transitions. [2024-11-24 00:06:40,461 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 10803 transitions. Word has length 79 [2024-11-24 00:06:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:40,462 INFO L471 AbstractCegarLoop]: Abstraction has 7227 states and 10803 transitions. [2024-11-24 00:06:40,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 10803 transitions. [2024-11-24 00:06:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:06:40,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:40,467 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:40,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:06:40,468 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:40,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-11-24 00:06:40,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:40,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384091168] [2024-11-24 00:06:40,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:40,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:06:40,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:40,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384091168] [2024-11-24 00:06:40,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384091168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:40,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:40,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:40,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285057855] [2024-11-24 00:06:40,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:40,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:40,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:40,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:40,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:40,702 INFO L87 Difference]: Start difference. First operand 7227 states and 10803 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:41,402 INFO L93 Difference]: Finished difference Result 22727 states and 32697 transitions. [2024-11-24 00:06:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-24 00:06:41,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:41,457 INFO L225 Difference]: With dead ends: 22727 [2024-11-24 00:06:41,457 INFO L226 Difference]: Without dead ends: 19669 [2024-11-24 00:06:41,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:06:41,466 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6316 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:41,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6316 Valid, 3675 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2024-11-24 00:06:41,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 11371. [2024-11-24 00:06:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11371 states, 11369 states have (on average 1.45826369953382) internal successors, (16579), 11370 states have internal predecessors, (16579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 16579 transitions. [2024-11-24 00:06:42,013 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 16579 transitions. Word has length 79 [2024-11-24 00:06:42,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:42,014 INFO L471 AbstractCegarLoop]: Abstraction has 11371 states and 16579 transitions. [2024-11-24 00:06:42,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:42,014 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 16579 transitions. [2024-11-24 00:06:42,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:06:42,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:42,018 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:42,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:06:42,018 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:42,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-11-24 00:06:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63892709] [2024-11-24 00:06:42,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:06:42,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:42,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63892709] [2024-11-24 00:06:42,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63892709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:42,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:42,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:42,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730687845] [2024-11-24 00:06:42,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:42,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:42,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:42,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:42,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:42,256 INFO L87 Difference]: Start difference. First operand 11371 states and 16579 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:42,960 INFO L93 Difference]: Finished difference Result 25783 states and 36969 transitions. [2024-11-24 00:06:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:42,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-24 00:06:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:43,024 INFO L225 Difference]: With dead ends: 25783 [2024-11-24 00:06:43,024 INFO L226 Difference]: Without dead ends: 22725 [2024-11-24 00:06:43,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:06:43,036 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:43,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22725 states. [2024-11-24 00:06:43,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22725 to 14427. [2024-11-24 00:06:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.445476603119584) internal successors, (20851), 14426 states have internal predecessors, (20851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 20851 transitions. [2024-11-24 00:06:43,720 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 20851 transitions. Word has length 79 [2024-11-24 00:06:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:43,721 INFO L471 AbstractCegarLoop]: Abstraction has 14427 states and 20851 transitions. [2024-11-24 00:06:43,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 20851 transitions. [2024-11-24 00:06:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:06:43,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:43,725 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:43,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:06:43,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:43,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:43,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-11-24 00:06:43,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:43,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633352471] [2024-11-24 00:06:43,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:43,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:06:43,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:43,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633352471] [2024-11-24 00:06:43,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633352471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:43,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:43,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:43,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177721579] [2024-11-24 00:06:43,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:43,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:43,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:43,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:43,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:43,981 INFO L87 Difference]: Start difference. First operand 14427 states and 20851 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:44,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:44,699 INFO L93 Difference]: Finished difference Result 28839 states and 41241 transitions. [2024-11-24 00:06:44,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:44,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-24 00:06:44,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:44,767 INFO L225 Difference]: With dead ends: 28839 [2024-11-24 00:06:44,767 INFO L226 Difference]: Without dead ends: 25781 [2024-11-24 00:06:44,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:06:44,887 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:44,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25781 states. [2024-11-24 00:06:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25781 to 17483. [2024-11-24 00:06:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 17481 states have (on average 1.4371603455179909) internal successors, (25123), 17482 states have internal predecessors, (25123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 25123 transitions. [2024-11-24 00:06:45,769 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 25123 transitions. Word has length 79 [2024-11-24 00:06:45,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:45,770 INFO L471 AbstractCegarLoop]: Abstraction has 17483 states and 25123 transitions. [2024-11-24 00:06:45,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:45,770 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 25123 transitions. [2024-11-24 00:06:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:06:45,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:45,775 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:45,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:06:45,775 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:45,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:45,776 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-11-24 00:06:45,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:45,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795495206] [2024-11-24 00:06:45,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:06:46,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:46,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795495206] [2024-11-24 00:06:46,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795495206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:46,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:46,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:06:46,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170161527] [2024-11-24 00:06:46,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:46,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:06:46,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:46,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:06:46,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:46,077 INFO L87 Difference]: Start difference. First operand 17483 states and 25123 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:46,941 INFO L93 Difference]: Finished difference Result 31895 states and 45513 transitions. [2024-11-24 00:06:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:06:46,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-24 00:06:46,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:47,014 INFO L225 Difference]: With dead ends: 31895 [2024-11-24 00:06:47,014 INFO L226 Difference]: Without dead ends: 28837 [2024-11-24 00:06:47,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:06:47,027 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6334 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6334 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:47,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6334 Valid, 3688 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:06:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28837 states. [2024-11-24 00:06:47,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28837 to 20539. [2024-11-24 00:06:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.4313190826313482) internal successors, (29395), 20538 states have internal predecessors, (29395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29395 transitions. [2024-11-24 00:06:47,761 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29395 transitions. Word has length 79 [2024-11-24 00:06:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:47,762 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29395 transitions. [2024-11-24 00:06:47,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29395 transitions. [2024-11-24 00:06:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 00:06:47,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:47,769 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:47,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:06:47,769 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:47,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-11-24 00:06:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:47,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423816845] [2024-11-24 00:06:47,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:47,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:47,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:47,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423816845] [2024-11-24 00:06:47,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423816845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:47,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:47,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:47,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055803687] [2024-11-24 00:06:47,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:47,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:47,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:47,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:47,936 INFO L87 Difference]: Start difference. First operand 20539 states and 29395 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:48,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:48,447 INFO L93 Difference]: Finished difference Result 39535 states and 55973 transitions. [2024-11-24 00:06:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:48,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-24 00:06:48,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:48,487 INFO L225 Difference]: With dead ends: 39535 [2024-11-24 00:06:48,487 INFO L226 Difference]: Without dead ends: 20541 [2024-11-24 00:06:48,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:48,506 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:48,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2024-11-24 00:06:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 20539. [2024-11-24 00:06:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.416906071967668) internal successors, (29099), 20538 states have internal predecessors, (29099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:49,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29099 transitions. [2024-11-24 00:06:49,226 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29099 transitions. Word has length 80 [2024-11-24 00:06:49,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:49,227 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29099 transitions. [2024-11-24 00:06:49,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29099 transitions. [2024-11-24 00:06:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 00:06:49,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:49,230 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:06:49,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:06:49,230 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:49,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-11-24 00:06:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:49,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407776397] [2024-11-24 00:06:49,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:49,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:49,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:49,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:49,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407776397] [2024-11-24 00:06:49,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407776397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:49,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:49,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861831394] [2024-11-24 00:06:49,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:49,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:49,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:49,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:49,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:49,374 INFO L87 Difference]: Start difference. First operand 20539 states and 29099 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:49,608 INFO L93 Difference]: Finished difference Result 27635 states and 39002 transitions. [2024-11-24 00:06:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:49,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-24 00:06:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:49,629 INFO L225 Difference]: With dead ends: 27635 [2024-11-24 00:06:49,629 INFO L226 Difference]: Without dead ends: 8641 [2024-11-24 00:06:49,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:49,646 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:49,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:49,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2024-11-24 00:06:49,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 8632. [2024-11-24 00:06:49,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8630 states have (on average 1.4609501738122828) internal successors, (12608), 8631 states have internal predecessors, (12608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 12608 transitions. [2024-11-24 00:06:49,907 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 12608 transitions. Word has length 81 [2024-11-24 00:06:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:49,909 INFO L471 AbstractCegarLoop]: Abstraction has 8632 states and 12608 transitions. [2024-11-24 00:06:49,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 12608 transitions. [2024-11-24 00:06:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 00:06:49,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:49,912 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:49,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:06:49,912 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:49,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:49,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-11-24 00:06:49,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:49,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702533102] [2024-11-24 00:06:49,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:49,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:50,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702533102] [2024-11-24 00:06:50,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702533102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:50,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:50,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:50,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863591315] [2024-11-24 00:06:50,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:50,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:50,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:50,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:50,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,052 INFO L87 Difference]: Start difference. First operand 8632 states and 12608 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:50,176 INFO L93 Difference]: Finished difference Result 12172 states and 17498 transitions. [2024-11-24 00:06:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-24 00:06:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:50,189 INFO L225 Difference]: With dead ends: 12172 [2024-11-24 00:06:50,189 INFO L226 Difference]: Without dead ends: 5098 [2024-11-24 00:06:50,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,198 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:50,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5098 states. [2024-11-24 00:06:50,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5098 to 5096. [2024-11-24 00:06:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5096 states, 5094 states have (on average 1.5053003533568905) internal successors, (7668), 5095 states have internal predecessors, (7668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 7668 transitions. [2024-11-24 00:06:50,337 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 7668 transitions. Word has length 82 [2024-11-24 00:06:50,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:50,337 INFO L471 AbstractCegarLoop]: Abstraction has 5096 states and 7668 transitions. [2024-11-24 00:06:50,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 7668 transitions. [2024-11-24 00:06:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 00:06:50,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:50,339 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:50,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:06:50,340 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:50,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-11-24 00:06:50,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:50,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089953999] [2024-11-24 00:06:50,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:50,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:50,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:50,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089953999] [2024-11-24 00:06:50,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089953999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:50,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:50,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289945250] [2024-11-24 00:06:50,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:50,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:50,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:50,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:50,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,475 INFO L87 Difference]: Start difference. First operand 5096 states and 7668 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:50,544 INFO L93 Difference]: Finished difference Result 6868 states and 10088 transitions. [2024-11-24 00:06:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-24 00:06:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:50,554 INFO L225 Difference]: With dead ends: 6868 [2024-11-24 00:06:50,555 INFO L226 Difference]: Without dead ends: 3330 [2024-11-24 00:06:50,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,558 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:50,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-11-24 00:06:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3328. [2024-11-24 00:06:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3326 states have (on average 1.570655441972339) internal successors, (5224), 3327 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 5224 transitions. [2024-11-24 00:06:50,692 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 5224 transitions. Word has length 84 [2024-11-24 00:06:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:50,693 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 5224 transitions. [2024-11-24 00:06:50,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 5224 transitions. [2024-11-24 00:06:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 00:06:50,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:50,694 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:50,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:06:50,694 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-11-24 00:06:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751114731] [2024-11-24 00:06:50,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:50,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:50,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751114731] [2024-11-24 00:06:50,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751114731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793436269] [2024-11-24 00:06:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:50,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:50,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:50,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:50,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,803 INFO L87 Difference]: Start difference. First operand 3328 states and 5224 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:50,851 INFO L93 Difference]: Finished difference Result 4216 states and 6422 transitions. [2024-11-24 00:06:50,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:50,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-24 00:06:50,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:50,858 INFO L225 Difference]: With dead ends: 4216 [2024-11-24 00:06:50,858 INFO L226 Difference]: Without dead ends: 2446 [2024-11-24 00:06:50,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:50,861 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:50,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:06:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-11-24 00:06:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2444. [2024-11-24 00:06:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2442 states have (on average 1.6441441441441442) internal successors, (4015), 2443 states have internal predecessors, (4015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 4015 transitions. [2024-11-24 00:06:50,918 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 4015 transitions. Word has length 86 [2024-11-24 00:06:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:50,919 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 4015 transitions. [2024-11-24 00:06:50,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 4015 transitions. [2024-11-24 00:06:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:06:50,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:50,921 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:50,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:06:50,921 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:50,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-11-24 00:06:50,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:50,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56595987] [2024-11-24 00:06:50,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:50,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56595987] [2024-11-24 00:06:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56595987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:51,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482206617] [2024-11-24 00:06:51,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:51,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:51,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:51,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:51,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:06:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:51,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:06:51,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:52,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482206617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:06:52,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:06:52,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 19 [2024-11-24 00:06:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014367088] [2024-11-24 00:06:52,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:52,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:06:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:52,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:06:52,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:06:52,810 INFO L87 Difference]: Start difference. First operand 2444 states and 4015 transitions. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:55,700 INFO L93 Difference]: Finished difference Result 8642 states and 12099 transitions. [2024-11-24 00:06:55,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-24 00:06:55,700 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-24 00:06:55,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:55,715 INFO L225 Difference]: With dead ends: 8642 [2024-11-24 00:06:55,715 INFO L226 Difference]: Without dead ends: 7678 [2024-11-24 00:06:55,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=781, Invalid=3251, Unknown=0, NotChecked=0, Total=4032 [2024-11-24 00:06:55,721 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 10968 mSDsluCounter, 8074 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10968 SdHoareTripleChecker+Valid, 9625 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:55,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10968 Valid, 9625 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:06:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2024-11-24 00:06:56,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 7045. [2024-11-24 00:06:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7043 states have (on average 1.4076387902882295) internal successors, (9914), 7044 states have internal predecessors, (9914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9914 transitions. [2024-11-24 00:06:56,028 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9914 transitions. Word has length 88 [2024-11-24 00:06:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:56,029 INFO L471 AbstractCegarLoop]: Abstraction has 7045 states and 9914 transitions. [2024-11-24 00:06:56,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:06:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9914 transitions. [2024-11-24 00:06:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 00:06:56,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:56,032 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:56,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:06:56,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 00:06:56,236 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:56,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -976563003, now seen corresponding path program 1 times [2024-11-24 00:06:56,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:56,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116088711] [2024-11-24 00:06:56,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:58,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116088711] [2024-11-24 00:06:58,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116088711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708997833] [2024-11-24 00:06:58,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:58,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:58,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:58,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:58,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:06:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:58,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:06:58,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:59,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708997833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:00,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:07:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-24 00:07:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303350788] [2024-11-24 00:07:00,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:00,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:07:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:00,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:07:00,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:07:00,526 INFO L87 Difference]: Start difference. First operand 7045 states and 9914 transitions. Second operand has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:01,782 INFO L93 Difference]: Finished difference Result 17933 states and 24037 transitions. [2024-11-24 00:07:01,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:07:01,782 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-24 00:07:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:01,809 INFO L225 Difference]: With dead ends: 17933 [2024-11-24 00:07:01,809 INFO L226 Difference]: Without dead ends: 12730 [2024-11-24 00:07:01,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:07:01,816 INFO L435 NwaCegarLoop]: 1512 mSDtfsCounter, 21248 mSDsluCounter, 4899 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21248 SdHoareTripleChecker+Valid, 6411 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:01,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21248 Valid, 6411 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:07:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12730 states. [2024-11-24 00:07:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12730 to 12582. [2024-11-24 00:07:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12582 states, 12580 states have (on average 1.3422098569157392) internal successors, (16885), 12581 states have internal predecessors, (16885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12582 states to 12582 states and 16885 transitions. [2024-11-24 00:07:02,354 INFO L78 Accepts]: Start accepts. Automaton has 12582 states and 16885 transitions. Word has length 89 [2024-11-24 00:07:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:02,354 INFO L471 AbstractCegarLoop]: Abstraction has 12582 states and 16885 transitions. [2024-11-24 00:07:02,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 12582 states and 16885 transitions. [2024-11-24 00:07:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 00:07:02,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:02,357 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:02,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:07:02,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-24 00:07:02,558 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:02,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1535524411, now seen corresponding path program 1 times [2024-11-24 00:07:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635548254] [2024-11-24 00:07:02,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:04,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635548254] [2024-11-24 00:07:04,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635548254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427193888] [2024-11-24 00:07:04,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:04,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:04,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:04,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:07:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:04,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:07:04,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:05,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:07,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427193888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:07,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:07:07,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-11-24 00:07:07,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756961399] [2024-11-24 00:07:07,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:07,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 00:07:07,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:07,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 00:07:07,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:07:07,250 INFO L87 Difference]: Start difference. First operand 12582 states and 16885 transitions. Second operand has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:11,699 INFO L93 Difference]: Finished difference Result 59307 states and 77033 transitions. [2024-11-24 00:07:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-24 00:07:11,700 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-24 00:07:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:11,767 INFO L225 Difference]: With dead ends: 59307 [2024-11-24 00:07:11,768 INFO L226 Difference]: Without dead ends: 48655 [2024-11-24 00:07:11,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=926, Invalid=3766, Unknown=0, NotChecked=0, Total=4692 [2024-11-24 00:07:11,779 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 23309 mSDsluCounter, 9725 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23309 SdHoareTripleChecker+Valid, 11265 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:11,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23309 Valid, 11265 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:07:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48655 states. [2024-11-24 00:07:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48655 to 48103. [2024-11-24 00:07:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48101 states have (on average 1.2784765389492943) internal successors, (61496), 48102 states have internal predecessors, (61496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 61496 transitions. [2024-11-24 00:07:13,987 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 61496 transitions. Word has length 89 [2024-11-24 00:07:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:13,987 INFO L471 AbstractCegarLoop]: Abstraction has 48103 states and 61496 transitions. [2024-11-24 00:07:13,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 61496 transitions. [2024-11-24 00:07:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 00:07:13,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:13,992 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:14,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:07:14,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-24 00:07:14,193 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:14,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash 154349394, now seen corresponding path program 1 times [2024-11-24 00:07:14,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:14,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510342688] [2024-11-24 00:07:14,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:14,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510342688] [2024-11-24 00:07:14,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510342688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380132275] [2024-11-24 00:07:14,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:14,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:14,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:14,813 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:14,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:07:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:15,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:07:15,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:15,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:16,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380132275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:16,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:07:16,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-24 00:07:16,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386878630] [2024-11-24 00:07:16,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:16,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:07:16,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:16,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:07:16,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:07:16,791 INFO L87 Difference]: Start difference. First operand 48103 states and 61496 transitions. Second operand has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:22,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:22,139 INFO L93 Difference]: Finished difference Result 141946 states and 180521 transitions. [2024-11-24 00:07:22,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-24 00:07:22,140 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-24 00:07:22,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:22,260 INFO L225 Difference]: With dead ends: 141946 [2024-11-24 00:07:22,260 INFO L226 Difference]: Without dead ends: 98142 [2024-11-24 00:07:22,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=622, Invalid=2458, Unknown=0, NotChecked=0, Total=3080 [2024-11-24 00:07:22,419 INFO L435 NwaCegarLoop]: 1544 mSDtfsCounter, 21780 mSDsluCounter, 6915 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21780 SdHoareTripleChecker+Valid, 8459 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:22,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21780 Valid, 8459 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:07:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98142 states. [2024-11-24 00:07:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98142 to 90990. [2024-11-24 00:07:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90990 states, 90988 states have (on average 1.2440981228293841) internal successors, (113198), 90989 states have internal predecessors, (113198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90990 states to 90990 states and 113198 transitions. [2024-11-24 00:07:25,908 INFO L78 Accepts]: Start accepts. Automaton has 90990 states and 113198 transitions. Word has length 90 [2024-11-24 00:07:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:25,909 INFO L471 AbstractCegarLoop]: Abstraction has 90990 states and 113198 transitions. [2024-11-24 00:07:25,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:07:25,909 INFO L276 IsEmpty]: Start isEmpty. Operand 90990 states and 113198 transitions. [2024-11-24 00:07:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:07:25,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:25,914 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:25,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:07:26,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 00:07:26,115 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:07:26,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1858200354, now seen corresponding path program 1 times [2024-11-24 00:07:26,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:26,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720813226] [2024-11-24 00:07:26,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:28,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:28,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720813226] [2024-11-24 00:07:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720813226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:07:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148759794] [2024-11-24 00:07:28,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:28,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:28,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:28,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:28,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:07:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:28,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 00:07:28,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:35,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:41,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148759794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:41,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:07:41,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 20] total 60 [2024-11-24 00:07:41,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27340703] [2024-11-24 00:07:41,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:41,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-24 00:07:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:41,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-24 00:07:41,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=3275, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 00:07:41,038 INFO L87 Difference]: Start difference. First operand 90990 states and 113198 transitions. Second operand has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:14:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:17,293 INFO L93 Difference]: Finished difference Result 355295 states and 440379 transitions. [2024-11-24 00:14:17,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 814 states. [2024-11-24 00:14:17,298 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-24 00:14:17,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:18,212 INFO L225 Difference]: With dead ends: 355295 [2024-11-24 00:14:18,212 INFO L226 Difference]: Without dead ends: 321134 [2024-11-24 00:14:18,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355959 ImplicationChecksByTransitivity, 367.2s TimeCoverageRelationStatistics Valid=71648, Invalid=686122, Unknown=0, NotChecked=0, Total=757770 [2024-11-24 00:14:18,437 INFO L435 NwaCegarLoop]: 1765 mSDtfsCounter, 42491 mSDsluCounter, 40985 mSDsCounter, 0 mSdLazyCounter, 15481 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42491 SdHoareTripleChecker+Valid, 42750 SdHoareTripleChecker+Invalid, 15815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 15481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:18,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42491 Valid, 42750 Invalid, 15815 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [334 Valid, 15481 Invalid, 0 Unknown, 0 Unchecked, 19.8s Time] [2024-11-24 00:14:18,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321134 states. [2024-11-24 00:14:27,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321134 to 127419. [2024-11-24 00:14:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127419 states, 127417 states have (on average 1.2487109255436872) internal successors, (159107), 127418 states have internal predecessors, (159107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:14:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127419 states to 127419 states and 159107 transitions. [2024-11-24 00:14:27,982 INFO L78 Accepts]: Start accepts. Automaton has 127419 states and 159107 transitions. Word has length 92 [2024-11-24 00:14:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:27,983 INFO L471 AbstractCegarLoop]: Abstraction has 127419 states and 159107 transitions. [2024-11-24 00:14:27,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:14:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 127419 states and 159107 transitions. [2024-11-24 00:14:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:14:27,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:27,993 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:28,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:14:28,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:14:28,198 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:28,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:28,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2026037978, now seen corresponding path program 1 times [2024-11-24 00:14:28,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:28,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659997905] [2024-11-24 00:14:28,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:28,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:34,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:34,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659997905] [2024-11-24 00:14:34,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659997905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:34,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37408783] [2024-11-24 00:14:34,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:14:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:34,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:14:34,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:14:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:34,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:14:34,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:35,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:37,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37408783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:37,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:14:37,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 51 [2024-11-24 00:14:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414501276] [2024-11-24 00:14:37,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:37,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-24 00:14:37,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:37,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-24 00:14:37,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2402, Unknown=0, NotChecked=0, Total=2550 [2024-11-24 00:14:37,640 INFO L87 Difference]: Start difference. First operand 127419 states and 159107 transitions. Second operand has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:15:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:37,682 INFO L93 Difference]: Finished difference Result 237721 states and 295036 transitions. [2024-11-24 00:15:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2024-11-24 00:15:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-24 00:15:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:37,935 INFO L225 Difference]: With dead ends: 237721 [2024-11-24 00:15:37,936 INFO L226 Difference]: Without dead ends: 197430 [2024-11-24 00:15:37,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16701 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=9549, Invalid=43121, Unknown=0, NotChecked=0, Total=52670 [2024-11-24 00:15:37,978 INFO L435 NwaCegarLoop]: 1690 mSDtfsCounter, 28542 mSDsluCounter, 32106 mSDsCounter, 0 mSdLazyCounter, 7663 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28542 SdHoareTripleChecker+Valid, 33796 SdHoareTripleChecker+Invalid, 7860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 7663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:37,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28542 Valid, 33796 Invalid, 7860 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [197 Valid, 7663 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-24 00:15:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197430 states. [2024-11-24 00:15:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197430 to 113734. [2024-11-24 00:15:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113734 states, 113732 states have (on average 1.2435726092920198) internal successors, (141434), 113733 states have internal predecessors, (141434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:15:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113734 states to 113734 states and 141434 transitions. [2024-11-24 00:15:45,532 INFO L78 Accepts]: Start accepts. Automaton has 113734 states and 141434 transitions. Word has length 92 [2024-11-24 00:15:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:45,532 INFO L471 AbstractCegarLoop]: Abstraction has 113734 states and 141434 transitions. [2024-11-24 00:15:45,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:15:45,533 INFO L276 IsEmpty]: Start isEmpty. Operand 113734 states and 141434 transitions. [2024-11-24 00:15:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:15:45,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:45,536 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:15:45,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:15:45,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:15:45,740 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:45,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1004211701, now seen corresponding path program 1 times [2024-11-24 00:15:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813022530] [2024-11-24 00:15:45,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:15:50,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813022530] [2024-11-24 00:15:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813022530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:15:50,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126361161] [2024-11-24 00:15:50,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:50,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:15:50,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:15:50,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:15:50,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:15:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:50,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:15:50,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:15:53,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:15:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:15:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126361161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:15:57,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:15:57,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 19] total 58 [2024-11-24 00:15:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531693476] [2024-11-24 00:15:57,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:15:57,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-24 00:15:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:57,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-24 00:15:57,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=3034, Unknown=0, NotChecked=0, Total=3306 [2024-11-24 00:15:57,018 INFO L87 Difference]: Start difference. First operand 113734 states and 141434 transitions. Second operand has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:17:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:14,846 INFO L93 Difference]: Finished difference Result 276299 states and 342483 transitions. [2024-11-24 00:17:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2024-11-24 00:17:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:17:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:15,348 INFO L225 Difference]: With dead ends: 276299 [2024-11-24 00:17:15,352 INFO L226 Difference]: Without dead ends: 237891 [2024-11-24 00:17:15,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39550 ImplicationChecksByTransitivity, 58.7s TimeCoverageRelationStatistics Valid=15447, Invalid=82209, Unknown=0, NotChecked=0, Total=97656 [2024-11-24 00:17:15,450 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 35773 mSDsluCounter, 31315 mSDsCounter, 0 mSdLazyCounter, 7819 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35773 SdHoareTripleChecker+Valid, 32960 SdHoareTripleChecker+Invalid, 8070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 7819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:15,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35773 Valid, 32960 Invalid, 8070 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [251 Valid, 7819 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-24 00:17:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237891 states. [2024-11-24 00:17:25,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237891 to 129163. [2024-11-24 00:17:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129163 states, 129161 states have (on average 1.240629911505795) internal successors, (160241), 129162 states have internal predecessors, (160241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:17:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129163 states to 129163 states and 160241 transitions. [2024-11-24 00:17:26,110 INFO L78 Accepts]: Start accepts. Automaton has 129163 states and 160241 transitions. Word has length 93 [2024-11-24 00:17:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:26,110 INFO L471 AbstractCegarLoop]: Abstraction has 129163 states and 160241 transitions. [2024-11-24 00:17:26,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:17:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 129163 states and 160241 transitions. [2024-11-24 00:17:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:17:26,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:26,114 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:17:26,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:17:26,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 00:17:26,318 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:26,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:26,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1461263243, now seen corresponding path program 1 times [2024-11-24 00:17:26,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:17:26,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291226427] [2024-11-24 00:17:26,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:26,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:17:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:17:27,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:17:27,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291226427] [2024-11-24 00:17:27,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291226427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:27,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870462479] [2024-11-24 00:17:27,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:27,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:17:27,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:17:27,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:17:27,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c04296-4c40-454f-9826-c1004a9aad1e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:17:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:27,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:17:27,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:17:28,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:17:29,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870462479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:17:29,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:17:29,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2024-11-24 00:17:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804839380] [2024-11-24 00:17:29,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:17:29,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 00:17:29,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:17:29,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 00:17:29,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:17:29,940 INFO L87 Difference]: Start difference. First operand 129163 states and 160241 transitions. Second operand has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:17:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:48,518 INFO L93 Difference]: Finished difference Result 227735 states and 280392 transitions. [2024-11-24 00:17:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-24 00:17:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:17:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:48,662 INFO L225 Difference]: With dead ends: 227735 [2024-11-24 00:17:48,662 INFO L226 Difference]: Without dead ends: 161273 [2024-11-24 00:17:48,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2176 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1632, Invalid=6378, Unknown=0, NotChecked=0, Total=8010 [2024-11-24 00:17:48,693 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 15560 mSDsluCounter, 21865 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15560 SdHoareTripleChecker+Valid, 23424 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:48,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15560 Valid, 23424 Invalid, 1854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 00:17:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161273 states.