./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/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 65b8d16e4fb153ef37dd57c64863e1dd20ac9a55503c1fdc63aa83fadd0f6c16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:54:55,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:54:55,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:54:55,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:54:55,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:54:55,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:54:55,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:54:55,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:54:55,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:54:55,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:54:55,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:54:55,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:54:55,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:54:55,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:54:55,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:54:55,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:54:55,737 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:54:55,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:55,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:55,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:55,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:54:55,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:54:55,740 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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/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 -> 65b8d16e4fb153ef37dd57c64863e1dd20ac9a55503c1fdc63aa83fadd0f6c16 [2024-11-23 23:54:56,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:54:56,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:54:56,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:54:56,109 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:54:56,110 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:54:56,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-23 23:54:59,083 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/data/a7b480a48/2d5081d9997d41b29f73cac49993da81/FLAGd5dbca512 [2024-11-23 23:54:59,424 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:54:59,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-23 23:54:59,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/data/a7b480a48/2d5081d9997d41b29f73cac49993da81/FLAGd5dbca512 [2024-11-23 23:54:59,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/data/a7b480a48/2d5081d9997d41b29f73cac49993da81 [2024-11-23 23:54:59,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:54:59,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:54:59,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:59,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:54:59,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:54:59,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:54:59,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449fb934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59, skipping insertion in model container [2024-11-23 23:54:59,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:54:59,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:54:59,768 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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7182,7195] [2024-11-23 23:54:59,786 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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9513,9526] [2024-11-23 23:54:59,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:59,815 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:54:59,929 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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7182,7195] [2024-11-23 23:54:59,947 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_45edd4bd-b557-40db-9e56-0fb8a8892fc6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9513,9526] [2024-11-23 23:54:59,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:59,984 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:54:59,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59 WrapperNode [2024-11-23 23:54:59,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:59,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:59,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:54:59,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:54:59,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,067 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 507 [2024-11-23 23:55:00,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:55:00,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:55:00,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:55:00,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:55:00,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,106 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]. [2024-11-23 23:55:00,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:55:00,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:55:00,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:55:00,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:55:00,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (1/1) ... [2024-11-23 23:55:00,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:55:00,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:55:00,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:55:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:55:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:55:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:55:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:55:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:55:00,430 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:55:00,433 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:55:01,132 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-23 23:55:01,132 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:55:01,148 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:55:01,148 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:55:01,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:55:01 BoogieIcfgContainer [2024-11-23 23:55:01,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:55:01,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:55:01,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:55:01,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:55:01,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:54:59" (1/3) ... [2024-11-23 23:55:01,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7a37db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:55:01, skipping insertion in model container [2024-11-23 23:55:01,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:59" (2/3) ... [2024-11-23 23:55:01,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7a37db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:55:01, skipping insertion in model container [2024-11-23 23:55:01,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:55:01" (3/3) ... [2024-11-23 23:55:01,166 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-23 23:55:01,191 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:55:01,193 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c that has 1 procedures, 106 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 23:55:01,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:55:01,300 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;@711c1b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:55:01,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:55:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-23 23:55:01,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:01,317 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] [2024-11-23 23:55:01,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:01,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1038847250, now seen corresponding path program 1 times [2024-11-23 23:55:01,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:01,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451209403] [2024-11-23 23:55:01,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:01,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451209403] [2024-11-23 23:55:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451209403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:55:02,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905810700] [2024-11-23 23:55:02,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:02,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:02,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:02,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:02,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:02,157 INFO L87 Difference]: Start difference. First operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:02,571 INFO L93 Difference]: Finished difference Result 416 states and 663 transitions. [2024-11-23 23:55:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:55:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-23 23:55:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:02,594 INFO L225 Difference]: With dead ends: 416 [2024-11-23 23:55:02,594 INFO L226 Difference]: Without dead ends: 353 [2024-11-23 23:55:02,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:55:02,608 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 596 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:02,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 768 Invalid, 118 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:55:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-23 23:55:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 155. [2024-11-23 23:55:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2024-11-23 23:55:02,687 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 48 [2024-11-23 23:55:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:02,688 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2024-11-23 23:55:02,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2024-11-23 23:55:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-23 23:55:02,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:02,690 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] [2024-11-23 23:55:02,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:55:02,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:02,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1964840261, now seen corresponding path program 1 times [2024-11-23 23:55:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:02,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28111803] [2024-11-23 23:55:02,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:02,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:02,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28111803] [2024-11-23 23:55:02,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28111803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:02,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:02,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:02,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112435518] [2024-11-23 23:55:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:02,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:02,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:02,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:02,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:02,935 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:03,018 INFO L93 Difference]: Finished difference Result 244 states and 352 transitions. [2024-11-23 23:55:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-23 23:55:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:03,021 INFO L225 Difference]: With dead ends: 244 [2024-11-23 23:55:03,024 INFO L226 Difference]: Without dead ends: 159 [2024-11-23 23:55:03,025 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 [2024-11-23 23:55:03,026 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:03,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 301 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:03,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-23 23:55:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2024-11-23 23:55:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 156 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2024-11-23 23:55:03,050 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 49 [2024-11-23 23:55:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:03,050 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2024-11-23 23:55:03,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,051 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2024-11-23 23:55:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:55:03,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:03,054 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] [2024-11-23 23:55:03,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:55:03,054 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:03,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:03,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1398279763, now seen corresponding path program 1 times [2024-11-23 23:55:03,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:03,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567086001] [2024-11-23 23:55:03,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:03,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:03,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567086001] [2024-11-23 23:55:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567086001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:03,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:03,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:55:03,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006335507] [2024-11-23 23:55:03,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:03,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:03,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:03,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:03,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:03,447 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:03,605 INFO L93 Difference]: Finished difference Result 470 states and 690 transitions. [2024-11-23 23:55:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:03,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-23 23:55:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:03,608 INFO L225 Difference]: With dead ends: 470 [2024-11-23 23:55:03,608 INFO L226 Difference]: Without dead ends: 388 [2024-11-23 23:55:03,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:03,610 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 298 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:03,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 532 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-23 23:55:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 248. [2024-11-23 23:55:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 247 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2024-11-23 23:55:03,637 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 50 [2024-11-23 23:55:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:03,638 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2024-11-23 23:55:03,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2024-11-23 23:55:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:55:03,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:03,640 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] [2024-11-23 23:55:03,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:55:03,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:03,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:03,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1526101883, now seen corresponding path program 1 times [2024-11-23 23:55:03,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:03,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59030620] [2024-11-23 23:55:03,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:03,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:03,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59030620] [2024-11-23 23:55:03,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59030620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:03,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:03,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:55:03,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732468515] [2024-11-23 23:55:03,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:03,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:03,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:03,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:03,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:03,983 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:04,143 INFO L93 Difference]: Finished difference Result 556 states and 821 transitions. [2024-11-23 23:55:04,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:04,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-23 23:55:04,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:04,147 INFO L225 Difference]: With dead ends: 556 [2024-11-23 23:55:04,148 INFO L226 Difference]: Without dead ends: 474 [2024-11-23 23:55:04,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:04,152 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 356 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:04,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 537 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-23 23:55:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 376. [2024-11-23 23:55:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.4786096256684491) internal successors, (553), 375 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 553 transitions. [2024-11-23 23:55:04,190 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 553 transitions. Word has length 50 [2024-11-23 23:55:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:04,190 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 553 transitions. [2024-11-23 23:55:04,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 553 transitions. [2024-11-23 23:55:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:55:04,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:04,192 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] [2024-11-23 23:55:04,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:55:04,192 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:04,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2031133031, now seen corresponding path program 1 times [2024-11-23 23:55:04,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:04,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675126179] [2024-11-23 23:55:04,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:04,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:04,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675126179] [2024-11-23 23:55:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675126179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:04,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:55:04,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464504429] [2024-11-23 23:55:04,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:04,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:04,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:04,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:04,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:04,481 INFO L87 Difference]: Start difference. First operand 376 states and 553 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:04,642 INFO L93 Difference]: Finished difference Result 647 states and 960 transitions. [2024-11-23 23:55:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-23 23:55:04,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:04,647 INFO L225 Difference]: With dead ends: 647 [2024-11-23 23:55:04,647 INFO L226 Difference]: Without dead ends: 565 [2024-11-23 23:55:04,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:04,651 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 361 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:04,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 550 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-23 23:55:04,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2024-11-23 23:55:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4881720430107528) internal successors, (692), 466 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 692 transitions. [2024-11-23 23:55:04,683 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 692 transitions. Word has length 50 [2024-11-23 23:55:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:04,684 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 692 transitions. [2024-11-23 23:55:04,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 692 transitions. [2024-11-23 23:55:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:55:04,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:04,688 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] [2024-11-23 23:55:04,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:55:04,689 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:04,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash 222346276, now seen corresponding path program 1 times [2024-11-23 23:55:04,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:04,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923390021] [2024-11-23 23:55:04,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:04,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:04,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:04,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923390021] [2024-11-23 23:55:04,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923390021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:04,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:04,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:55:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601050937] [2024-11-23 23:55:04,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:04,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:04,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:04,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:04,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:04,880 INFO L87 Difference]: Start difference. First operand 467 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:05,129 INFO L93 Difference]: Finished difference Result 1315 states and 1973 transitions. [2024-11-23 23:55:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-23 23:55:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:05,136 INFO L225 Difference]: With dead ends: 1315 [2024-11-23 23:55:05,137 INFO L226 Difference]: Without dead ends: 871 [2024-11-23 23:55:05,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:05,141 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 560 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:05,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 133 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:55:05,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-23 23:55:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 866. [2024-11-23 23:55:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4953703703703705) internal successors, (1292), 865 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1292 transitions. [2024-11-23 23:55:05,202 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1292 transitions. Word has length 51 [2024-11-23 23:55:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:05,203 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1292 transitions. [2024-11-23 23:55:05,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1292 transitions. [2024-11-23 23:55:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-23 23:55:05,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:05,204 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] [2024-11-23 23:55:05,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:55:05,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:05,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 323435980, now seen corresponding path program 1 times [2024-11-23 23:55:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:05,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723390000] [2024-11-23 23:55:05,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:05,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:05,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:05,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723390000] [2024-11-23 23:55:05,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723390000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:05,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:05,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:55:05,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605852861] [2024-11-23 23:55:05,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:05,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:05,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:05,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:05,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:05,424 INFO L87 Difference]: Start difference. First operand 866 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:05,575 INFO L93 Difference]: Finished difference Result 1705 states and 2556 transitions. [2024-11-23 23:55:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-23 23:55:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:05,579 INFO L225 Difference]: With dead ends: 1705 [2024-11-23 23:55:05,580 INFO L226 Difference]: Without dead ends: 866 [2024-11-23 23:55:05,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:05,583 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 365 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:05,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 88 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-23 23:55:05,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-23 23:55:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4733796296296295) internal successors, (1273), 865 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1273 transitions. [2024-11-23 23:55:05,624 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1273 transitions. Word has length 52 [2024-11-23 23:55:05,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:05,625 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1273 transitions. [2024-11-23 23:55:05,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:05,625 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1273 transitions. [2024-11-23 23:55:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 23:55:05,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:05,627 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] [2024-11-23 23:55:05,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:55:05,628 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:05,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:05,629 INFO L85 PathProgramCache]: Analyzing trace with hash 549255064, now seen corresponding path program 1 times [2024-11-23 23:55:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:05,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942390665] [2024-11-23 23:55:05,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:05,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:05,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942390665] [2024-11-23 23:55:05,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942390665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:05,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:05,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:55:05,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124976154] [2024-11-23 23:55:05,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:05,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:55:05,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:05,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:55:05,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:55:05,838 INFO L87 Difference]: Start difference. First operand 866 states and 1273 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:06,001 INFO L93 Difference]: Finished difference Result 1701 states and 2514 transitions. [2024-11-23 23:55:06,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:55:06,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-23 23:55:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:06,005 INFO L225 Difference]: With dead ends: 1701 [2024-11-23 23:55:06,005 INFO L226 Difference]: Without dead ends: 866 [2024-11-23 23:55:06,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:55:06,008 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 347 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:06,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 96 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:55:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-23 23:55:06,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-23 23:55:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4513888888888888) internal successors, (1254), 865 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1254 transitions. [2024-11-23 23:55:06,039 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1254 transitions. Word has length 53 [2024-11-23 23:55:06,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:06,040 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1254 transitions. [2024-11-23 23:55:06,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1254 transitions. [2024-11-23 23:55:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 23:55:06,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:06,041 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] [2024-11-23 23:55:06,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:55:06,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:06,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:06,042 INFO L85 PathProgramCache]: Analyzing trace with hash -680909608, now seen corresponding path program 1 times [2024-11-23 23:55:06,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:06,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087283426] [2024-11-23 23:55:06,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:06,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:06,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:06,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087283426] [2024-11-23 23:55:06,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087283426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:06,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:06,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:55:06,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254926487] [2024-11-23 23:55:06,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:06,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:55:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:06,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:55:06,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:55:06,576 INFO L87 Difference]: Start difference. First operand 866 states and 1254 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:06,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:06,983 INFO L93 Difference]: Finished difference Result 2391 states and 3495 transitions. [2024-11-23 23:55:06,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:55:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-23 23:55:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:06,990 INFO L225 Difference]: With dead ends: 2391 [2024-11-23 23:55:06,990 INFO L226 Difference]: Without dead ends: 1627 [2024-11-23 23:55:06,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:55:06,992 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 313 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:06,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 324 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:55:06,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-23 23:55:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 866. [2024-11-23 23:55:07,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4502314814814814) internal successors, (1253), 865 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1253 transitions. [2024-11-23 23:55:07,030 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1253 transitions. Word has length 54 [2024-11-23 23:55:07,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:07,030 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1253 transitions. [2024-11-23 23:55:07,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1253 transitions. [2024-11-23 23:55:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 23:55:07,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:07,031 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] [2024-11-23 23:55:07,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:55:07,031 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:07,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1757672516, now seen corresponding path program 1 times [2024-11-23 23:55:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:07,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660141157] [2024-11-23 23:55:07,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:07,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660141157] [2024-11-23 23:55:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660141157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:55:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809462791] [2024-11-23 23:55:07,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:07,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:55:07,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:07,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:55:07,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:55:07,681 INFO L87 Difference]: Start difference. First operand 866 states and 1253 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:08,448 INFO L93 Difference]: Finished difference Result 2484 states and 3587 transitions. [2024-11-23 23:55:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:55:08,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-23 23:55:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:08,455 INFO L225 Difference]: With dead ends: 2484 [2024-11-23 23:55:08,455 INFO L226 Difference]: Without dead ends: 1741 [2024-11-23 23:55:08,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:55:08,457 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 461 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:08,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 592 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:55:08,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-11-23 23:55:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 875. [2024-11-23 23:55:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 873 states have (on average 1.445589919816724) internal successors, (1262), 874 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1262 transitions. [2024-11-23 23:55:08,493 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1262 transitions. Word has length 54 [2024-11-23 23:55:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:08,494 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1262 transitions. [2024-11-23 23:55:08,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1262 transitions. [2024-11-23 23:55:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:55:08,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:08,495 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] [2024-11-23 23:55:08,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:55:08,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:08,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash -728953036, now seen corresponding path program 1 times [2024-11-23 23:55:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903072170] [2024-11-23 23:55:08,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:08,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903072170] [2024-11-23 23:55:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903072170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:08,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:08,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:55:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222637980] [2024-11-23 23:55:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:08,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:55:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:08,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:55:08,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:55:08,931 INFO L87 Difference]: Start difference. First operand 875 states and 1262 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2024-11-23 23:55:09,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:09,503 INFO L93 Difference]: Finished difference Result 2448 states and 3552 transitions. [2024-11-23 23:55:09,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:55:09,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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 [2024-11-23 23:55:09,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:09,510 INFO L225 Difference]: With dead ends: 2448 [2024-11-23 23:55:09,510 INFO L226 Difference]: Without dead ends: 1687 [2024-11-23 23:55:09,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:55:09,513 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 768 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:09,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 366 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:55:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2024-11-23 23:55:09,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 866. [2024-11-23 23:55:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.443287037037037) internal successors, (1247), 865 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1247 transitions. [2024-11-23 23:55:09,544 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1247 transitions. Word has length 55 [2024-11-23 23:55:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:09,544 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1247 transitions. [2024-11-23 23:55:09,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2024-11-23 23:55:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1247 transitions. [2024-11-23 23:55:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:55:09,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:09,545 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] [2024-11-23 23:55:09,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:55:09,546 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:09,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2026548830, now seen corresponding path program 1 times [2024-11-23 23:55:09,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:09,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854313416] [2024-11-23 23:55:09,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:09,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854313416] [2024-11-23 23:55:09,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854313416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:09,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:09,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:55:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611029893] [2024-11-23 23:55:09,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:09,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:55:09,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:09,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:55:09,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:55:09,938 INFO L87 Difference]: Start difference. First operand 866 states and 1247 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2024-11-23 23:55:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:10,563 INFO L93 Difference]: Finished difference Result 1844 states and 2662 transitions. [2024-11-23 23:55:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:55:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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 [2024-11-23 23:55:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:10,567 INFO L225 Difference]: With dead ends: 1844 [2024-11-23 23:55:10,567 INFO L226 Difference]: Without dead ends: 1068 [2024-11-23 23:55:10,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:55:10,569 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 583 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:10,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 517 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:55:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-23 23:55:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 866. [2024-11-23 23:55:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4398148148148149) internal successors, (1244), 865 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1244 transitions. [2024-11-23 23:55:10,609 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1244 transitions. Word has length 55 [2024-11-23 23:55:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:10,610 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1244 transitions. [2024-11-23 23:55:10,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 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) [2024-11-23 23:55:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1244 transitions. [2024-11-23 23:55:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 23:55:10,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:10,611 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] [2024-11-23 23:55:10,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:55:10,611 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:10,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2014195720, now seen corresponding path program 1 times [2024-11-23 23:55:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:10,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740641862] [2024-11-23 23:55:10,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:10,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:11,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:11,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740641862] [2024-11-23 23:55:11,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740641862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:11,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:11,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:55:11,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192745849] [2024-11-23 23:55:11,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:11,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:55:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:11,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:55:11,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:55:11,512 INFO L87 Difference]: Start difference. First operand 866 states and 1244 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:12,240 INFO L93 Difference]: Finished difference Result 1946 states and 2833 transitions. [2024-11-23 23:55:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:55:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-23 23:55:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:12,246 INFO L225 Difference]: With dead ends: 1946 [2024-11-23 23:55:12,246 INFO L226 Difference]: Without dead ends: 1594 [2024-11-23 23:55:12,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:55:12,249 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 524 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:12,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 575 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:55:12,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2024-11-23 23:55:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 845. [2024-11-23 23:55:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.4412811387900355) internal successors, (1215), 844 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1215 transitions. [2024-11-23 23:55:12,279 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1215 transitions. Word has length 56 [2024-11-23 23:55:12,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:12,280 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1215 transitions. [2024-11-23 23:55:12,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1215 transitions. [2024-11-23 23:55:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 23:55:12,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:12,281 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] [2024-11-23 23:55:12,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:55:12,282 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:12,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:12,283 INFO L85 PathProgramCache]: Analyzing trace with hash 929811098, now seen corresponding path program 1 times [2024-11-23 23:55:12,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:12,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545977241] [2024-11-23 23:55:12,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:12,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545977241] [2024-11-23 23:55:13,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545977241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:13,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:13,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-23 23:55:13,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735674247] [2024-11-23 23:55:13,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:13,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 23:55:13,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:13,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 23:55:13,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:55:13,682 INFO L87 Difference]: Start difference. First operand 845 states and 1215 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:15,500 INFO L93 Difference]: Finished difference Result 1176 states and 1703 transitions. [2024-11-23 23:55:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 23:55:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-23 23:55:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:15,504 INFO L225 Difference]: With dead ends: 1176 [2024-11-23 23:55:15,504 INFO L226 Difference]: Without dead ends: 839 [2024-11-23 23:55:15,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 23:55:15,507 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 409 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:15,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1141 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:55:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-23 23:55:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 839. [2024-11-23 23:55:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 837 states have (on average 1.4396654719235364) internal successors, (1205), 838 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1205 transitions. [2024-11-23 23:55:15,530 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1205 transitions. Word has length 56 [2024-11-23 23:55:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:15,530 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1205 transitions. [2024-11-23 23:55:15,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1205 transitions. [2024-11-23 23:55:15,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 23:55:15,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:15,531 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] [2024-11-23 23:55:15,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:55:15,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:15,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:15,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1026982439, now seen corresponding path program 1 times [2024-11-23 23:55:15,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:15,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113442145] [2024-11-23 23:55:15,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:15,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:16,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113442145] [2024-11-23 23:55:16,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113442145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:16,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:16,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:55:16,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131618055] [2024-11-23 23:55:16,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:16,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:55:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:16,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:55:16,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:55:16,290 INFO L87 Difference]: Start difference. First operand 839 states and 1205 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:17,127 INFO L93 Difference]: Finished difference Result 1908 states and 2784 transitions. [2024-11-23 23:55:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:55:17,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-23 23:55:17,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:17,133 INFO L225 Difference]: With dead ends: 1908 [2024-11-23 23:55:17,133 INFO L226 Difference]: Without dead ends: 1565 [2024-11-23 23:55:17,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:55:17,135 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 564 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:17,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1022 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:55:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-23 23:55:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 821. [2024-11-23 23:55:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 819 states have (on average 1.4407814407814408) internal successors, (1180), 820 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1180 transitions. [2024-11-23 23:55:17,163 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1180 transitions. Word has length 56 [2024-11-23 23:55:17,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:17,163 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1180 transitions. [2024-11-23 23:55:17,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:17,163 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1180 transitions. [2024-11-23 23:55:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-23 23:55:17,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:17,164 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] [2024-11-23 23:55:17,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:55:17,164 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:17,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash 788720349, now seen corresponding path program 1 times [2024-11-23 23:55:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:17,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089095674] [2024-11-23 23:55:17,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:17,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:17,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089095674] [2024-11-23 23:55:17,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089095674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:17,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:17,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:55:17,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520164849] [2024-11-23 23:55:17,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:17,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:55:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:17,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:55:17,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:55:17,886 INFO L87 Difference]: Start difference. First operand 821 states and 1180 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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) [2024-11-23 23:55:18,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:18,628 INFO L93 Difference]: Finished difference Result 1143 states and 1659 transitions. [2024-11-23 23:55:18,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:55:18,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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 [2024-11-23 23:55:18,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:18,631 INFO L225 Difference]: With dead ends: 1143 [2024-11-23 23:55:18,631 INFO L226 Difference]: Without dead ends: 796 [2024-11-23 23:55:18,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:55:18,633 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 315 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:18,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 768 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:55:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-23 23:55:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2024-11-23 23:55:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.4477987421383647) internal successors, (1151), 795 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1151 transitions. [2024-11-23 23:55:18,653 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1151 transitions. Word has length 57 [2024-11-23 23:55:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:18,653 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1151 transitions. [2024-11-23 23:55:18,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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) [2024-11-23 23:55:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1151 transitions. [2024-11-23 23:55:18,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 23:55:18,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:18,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:18,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:55:18,656 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:18,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash -773234718, now seen corresponding path program 1 times [2024-11-23 23:55:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804599505] [2024-11-23 23:55:18,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:18,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804599505] [2024-11-23 23:55:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804599505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:18,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207117892] [2024-11-23 23:55:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:18,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:18,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:18,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:18,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:18,718 INFO L87 Difference]: Start difference. First operand 796 states and 1151 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:18,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:18,751 INFO L93 Difference]: Finished difference Result 2124 states and 3101 transitions. [2024-11-23 23:55:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:18,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-23 23:55:18,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:18,756 INFO L225 Difference]: With dead ends: 2124 [2024-11-23 23:55:18,756 INFO L226 Difference]: Without dead ends: 1402 [2024-11-23 23:55:18,758 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 [2024-11-23 23:55:18,759 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 50 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:18,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 279 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-11-23 23:55:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1400. [2024-11-23 23:55:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 1.4238741958541816) internal successors, (1992), 1399 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1992 transitions. [2024-11-23 23:55:18,794 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1992 transitions. Word has length 76 [2024-11-23 23:55:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:18,794 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 1992 transitions. [2024-11-23 23:55:18,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1992 transitions. [2024-11-23 23:55:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 23:55:18,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:18,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:18,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:55:18,796 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:18,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2013626748, now seen corresponding path program 1 times [2024-11-23 23:55:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704310967] [2024-11-23 23:55:18,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:18,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:18,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:18,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:18,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704310967] [2024-11-23 23:55:18,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704310967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:18,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:18,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877617397] [2024-11-23 23:55:18,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:18,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:18,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:18,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:18,931 INFO L87 Difference]: Start difference. First operand 1400 states and 1992 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2024-11-23 23:55:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:18,961 INFO L93 Difference]: Finished difference Result 3566 states and 5096 transitions. [2024-11-23 23:55:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 77 [2024-11-23 23:55:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:18,969 INFO L225 Difference]: With dead ends: 3566 [2024-11-23 23:55:18,969 INFO L226 Difference]: Without dead ends: 2240 [2024-11-23 23:55:18,970 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 [2024-11-23 23:55:18,971 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 56 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 265 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 [2024-11-23 23:55:18,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-23 23:55:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2094. [2024-11-23 23:55:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 2093 states have (on average 1.4085045389393216) internal successors, (2948), 2093 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) [2024-11-23 23:55:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2948 transitions. [2024-11-23 23:55:19,025 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2948 transitions. Word has length 77 [2024-11-23 23:55:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:19,026 INFO L471 AbstractCegarLoop]: Abstraction has 2094 states and 2948 transitions. [2024-11-23 23:55:19,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2024-11-23 23:55:19,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2948 transitions. [2024-11-23 23:55:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-23 23:55:19,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:19,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:19,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:55:19,028 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:19,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash 31132410, now seen corresponding path program 1 times [2024-11-23 23:55:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:19,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415602164] [2024-11-23 23:55:19,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:19,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:19,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415602164] [2024-11-23 23:55:19,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415602164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:19,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:19,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:19,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686462273] [2024-11-23 23:55:19,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:19,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:19,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:19,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:19,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:19,156 INFO L87 Difference]: Start difference. First operand 2094 states and 2948 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:19,195 INFO L93 Difference]: Finished difference Result 5918 states and 8308 transitions. [2024-11-23 23:55:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:19,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-23 23:55:19,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:19,208 INFO L225 Difference]: With dead ends: 5918 [2024-11-23 23:55:19,209 INFO L226 Difference]: Without dead ends: 3898 [2024-11-23 23:55:19,211 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 [2024-11-23 23:55:19,212 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 263 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 [2024-11-23 23:55:19,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:19,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2024-11-23 23:55:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 3680. [2024-11-23 23:55:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 1.3900516444686055) internal successors, (5114), 3679 states have internal predecessors, (5114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5114 transitions. [2024-11-23 23:55:19,309 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5114 transitions. Word has length 78 [2024-11-23 23:55:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:19,310 INFO L471 AbstractCegarLoop]: Abstraction has 3680 states and 5114 transitions. [2024-11-23 23:55:19,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5114 transitions. [2024-11-23 23:55:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 23:55:19,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:19,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:19,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:55:19,312 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:19,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:19,313 INFO L85 PathProgramCache]: Analyzing trace with hash 769651115, now seen corresponding path program 1 times [2024-11-23 23:55:19,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:19,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20390354] [2024-11-23 23:55:19,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:19,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:19,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:19,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20390354] [2024-11-23 23:55:19,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20390354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:19,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:19,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:19,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287899882] [2024-11-23 23:55:19,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:19,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:19,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:19,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:19,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:19,440 INFO L87 Difference]: Start difference. First operand 3680 states and 5114 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:19,494 INFO L93 Difference]: Finished difference Result 10460 states and 14428 transitions. [2024-11-23 23:55:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-23 23:55:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:19,523 INFO L225 Difference]: With dead ends: 10460 [2024-11-23 23:55:19,523 INFO L226 Difference]: Without dead ends: 6854 [2024-11-23 23:55:19,528 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 [2024-11-23 23:55:19,529 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 42 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 260 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 [2024-11-23 23:55:19,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 260 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:19,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2024-11-23 23:55:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6420. [2024-11-23 23:55:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6420 states, 6419 states have (on average 1.3622059510827231) internal successors, (8744), 6419 states have internal predecessors, (8744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6420 states to 6420 states and 8744 transitions. [2024-11-23 23:55:19,699 INFO L78 Accepts]: Start accepts. Automaton has 6420 states and 8744 transitions. Word has length 79 [2024-11-23 23:55:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:19,700 INFO L471 AbstractCegarLoop]: Abstraction has 6420 states and 8744 transitions. [2024-11-23 23:55:19,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 6420 states and 8744 transitions. [2024-11-23 23:55:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-23 23:55:19,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:19,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:19,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:55:19,702 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:19,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:19,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1757386099, now seen corresponding path program 1 times [2024-11-23 23:55:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:19,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665423990] [2024-11-23 23:55:19,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:19,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:19,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665423990] [2024-11-23 23:55:19,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665423990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:19,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:19,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:55:19,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879069774] [2024-11-23 23:55:19,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:19,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:55:19,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:19,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:55:19,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:55:19,994 INFO L87 Difference]: Start difference. First operand 6420 states and 8744 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-23 23:55:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:20,051 INFO L93 Difference]: Finished difference Result 6614 states and 9001 transitions. [2024-11-23 23:55:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:55:20,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 [2024-11-23 23:55:20,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:20,073 INFO L225 Difference]: With dead ends: 6614 [2024-11-23 23:55:20,073 INFO L226 Difference]: Without dead ends: 6612 [2024-11-23 23:55:20,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:55:20,077 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:20,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2024-11-23 23:55:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 6612. [2024-11-23 23:55:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 6611 states have (on average 1.3395855392527605) internal successors, (8856), 6611 states have internal predecessors, (8856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 8856 transitions. [2024-11-23 23:55:20,224 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 8856 transitions. Word has length 80 [2024-11-23 23:55:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:20,224 INFO L471 AbstractCegarLoop]: Abstraction has 6612 states and 8856 transitions. [2024-11-23 23:55:20,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-23 23:55:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 8856 transitions. [2024-11-23 23:55:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-23 23:55:20,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:20,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:20,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:55:20,227 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:20,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1852306095, now seen corresponding path program 1 times [2024-11-23 23:55:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:20,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903831863] [2024-11-23 23:55:20,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:20,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:20,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903831863] [2024-11-23 23:55:20,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903831863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:20,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:20,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:55:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451776151] [2024-11-23 23:55:20,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:20,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:55:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:20,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:55:20,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:55:20,341 INFO L87 Difference]: Start difference. First operand 6612 states and 8856 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) [2024-11-23 23:55:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:20,405 INFO L93 Difference]: Finished difference Result 13400 states and 17974 transitions. [2024-11-23 23:55:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:55:20,408 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 [2024-11-23 23:55:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:20,427 INFO L225 Difference]: With dead ends: 13400 [2024-11-23 23:55:20,427 INFO L226 Difference]: Without dead ends: 6862 [2024-11-23 23:55:20,435 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 [2024-11-23 23:55:20,438 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 68 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:20,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 210 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6862 states. [2024-11-23 23:55:20,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6862 to 6860. [2024-11-23 23:55:20,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6860 states, 6859 states have (on average 1.3185595567867037) internal successors, (9044), 6859 states have internal predecessors, (9044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:20,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6860 states to 6860 states and 9044 transitions. [2024-11-23 23:55:20,627 INFO L78 Accepts]: Start accepts. Automaton has 6860 states and 9044 transitions. Word has length 80 [2024-11-23 23:55:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:20,629 INFO L471 AbstractCegarLoop]: Abstraction has 6860 states and 9044 transitions. [2024-11-23 23:55:20,630 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) [2024-11-23 23:55:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6860 states and 9044 transitions. [2024-11-23 23:55:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:55:20,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:20,633 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:20,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:55:20,633 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:20,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:20,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1815794868, now seen corresponding path program 1 times [2024-11-23 23:55:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137319700] [2024-11-23 23:55:20,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137319700] [2024-11-23 23:55:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137319700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:55:21,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47956961] [2024-11-23 23:55:21,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:21,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:55:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:55:21,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:55:21,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:55:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:21,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:55:21,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:55:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:55:21,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:55:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:55:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47956961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:55:22,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:55:22,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 18 [2024-11-23 23:55:22,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174121419] [2024-11-23 23:55:22,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:55:22,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:55:22,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:22,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:55:22,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:55:22,516 INFO L87 Difference]: Start difference. First operand 6860 states and 9044 transitions. Second operand has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:26,383 INFO L93 Difference]: Finished difference Result 38160 states and 50184 transitions. [2024-11-23 23:55:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-23 23:55:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 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 101 [2024-11-23 23:55:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:26,462 INFO L225 Difference]: With dead ends: 38160 [2024-11-23 23:55:26,462 INFO L226 Difference]: Without dead ends: 31374 [2024-11-23 23:55:26,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=752, Invalid=3280, Unknown=0, NotChecked=0, Total=4032 [2024-11-23 23:55:26,478 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 2547 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:26,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 1027 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:55:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31374 states. [2024-11-23 23:55:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31374 to 20352. [2024-11-23 23:55:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20352 states, 20351 states have (on average 1.3216058178959265) internal successors, (26896), 20351 states have internal predecessors, (26896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20352 states to 20352 states and 26896 transitions. [2024-11-23 23:55:26,976 INFO L78 Accepts]: Start accepts. Automaton has 20352 states and 26896 transitions. Word has length 101 [2024-11-23 23:55:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:26,977 INFO L471 AbstractCegarLoop]: Abstraction has 20352 states and 26896 transitions. [2024-11-23 23:55:26,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 20352 states and 26896 transitions. [2024-11-23 23:55:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:55:26,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:26,982 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:26,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:55:27,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-23 23:55:27,183 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:27,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:27,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1244020718, now seen corresponding path program 1 times [2024-11-23 23:55:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:27,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690070220] [2024-11-23 23:55:27,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:27,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:27,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690070220] [2024-11-23 23:55:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690070220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:55:27,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563686143] [2024-11-23 23:55:27,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:27,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:55:27,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:55:27,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:55:27,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:55:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:28,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-23 23:55:28,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:55:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:32,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:55:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:55:37,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563686143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:55:37,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:55:37,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 23, 24] total 55 [2024-11-23 23:55:37,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557595323] [2024-11-23 23:55:37,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:55:37,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-23 23:55:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:37,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-23 23:55:37,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2762, Unknown=0, NotChecked=0, Total=2970 [2024-11-23 23:55:37,256 INFO L87 Difference]: Start difference. First operand 20352 states and 26896 transitions. Second operand has 55 states, 55 states have (on average 5.181818181818182) internal successors, (285), 55 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:33,284 INFO L93 Difference]: Finished difference Result 297727 states and 396270 transitions. [2024-11-23 23:58:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 566 states. [2024-11-23 23:58:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 5.181818181818182) internal successors, (285), 55 states have internal predecessors, (285), 0 states have call successors, (0), 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 102 [2024-11-23 23:58:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:33,890 INFO L225 Difference]: With dead ends: 297727 [2024-11-23 23:58:33,890 INFO L226 Difference]: Without dead ends: 277473 [2024-11-23 23:58:33,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 617 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163796 ImplicationChecksByTransitivity, 159.4s TimeCoverageRelationStatistics Valid=27386, Invalid=355156, Unknown=0, NotChecked=0, Total=382542 [2024-11-23 23:58:33,997 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 11415 mSDsluCounter, 6489 mSDsCounter, 0 mSdLazyCounter, 13544 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11415 SdHoareTripleChecker+Valid, 6727 SdHoareTripleChecker+Invalid, 13888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 13544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:33,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11415 Valid, 6727 Invalid, 13888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [344 Valid, 13544 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2024-11-23 23:58:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277473 states. [2024-11-23 23:58:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277473 to 148147. [2024-11-23 23:58:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148147 states, 148146 states have (on average 1.3264482334993857) internal successors, (196508), 148146 states have internal predecessors, (196508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148147 states to 148147 states and 196508 transitions. [2024-11-23 23:58:37,254 INFO L78 Accepts]: Start accepts. Automaton has 148147 states and 196508 transitions. Word has length 102 [2024-11-23 23:58:37,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:37,254 INFO L471 AbstractCegarLoop]: Abstraction has 148147 states and 196508 transitions. [2024-11-23 23:58:37,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 5.181818181818182) internal successors, (285), 55 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 148147 states and 196508 transitions. [2024-11-23 23:58:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:58:37,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:37,273 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:37,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:58:37,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:37,474 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:37,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1816833770, now seen corresponding path program 1 times [2024-11-23 23:58:37,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:37,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624180390] [2024-11-23 23:58:37,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:37,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:58:37,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:37,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624180390] [2024-11-23 23:58:37,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624180390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:58:37,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:58:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:58:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709209475] [2024-11-23 23:58:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:58:37,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:58:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:37,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:58:37,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:58:37,594 INFO L87 Difference]: Start difference. First operand 148147 states and 196508 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:58:38,542 INFO L93 Difference]: Finished difference Result 254282 states and 336716 transitions. [2024-11-23 23:58:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:58:38,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 103 [2024-11-23 23:58:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:58:38,817 INFO L225 Difference]: With dead ends: 254282 [2024-11-23 23:58:38,818 INFO L226 Difference]: Without dead ends: 171228 [2024-11-23 23:58:38,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:58:38,907 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 80 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:58:38,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 221 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:58:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171228 states. [2024-11-23 23:58:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171228 to 128022. [2024-11-23 23:58:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128022 states, 128021 states have (on average 1.3145109005553777) internal successors, (168285), 128021 states have internal predecessors, (168285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128022 states to 128022 states and 168285 transitions. [2024-11-23 23:58:41,396 INFO L78 Accepts]: Start accepts. Automaton has 128022 states and 168285 transitions. Word has length 103 [2024-11-23 23:58:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:58:41,397 INFO L471 AbstractCegarLoop]: Abstraction has 128022 states and 168285 transitions. [2024-11-23 23:58:41,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:58:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 128022 states and 168285 transitions. [2024-11-23 23:58:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:58:41,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:58:41,405 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:58:41,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 23:58:41,405 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:58:41,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:58:41,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1399222449, now seen corresponding path program 1 times [2024-11-23 23:58:41,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:58:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332503922] [2024-11-23 23:58:41,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:58:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:58:43,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:58:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332503922] [2024-11-23 23:58:43,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332503922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:58:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093577283] [2024-11-23 23:58:43,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:58:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:58:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:58:43,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:58:43,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:58:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:58:43,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:58:43,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:58:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:58:44,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:58:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:58:45,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093577283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:58:45,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:58:45,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 10] total 42 [2024-11-23 23:58:45,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433084771] [2024-11-23 23:58:45,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:58:45,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-23 23:58:45,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:58:45,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-23 23:58:45,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1613, Unknown=0, NotChecked=0, Total=1722 [2024-11-23 23:58:45,356 INFO L87 Difference]: Start difference. First operand 128022 states and 168285 transitions. Second operand has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 0 states have call successors, (0), 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 00:00:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:04,502 INFO L93 Difference]: Finished difference Result 658432 states and 859264 transitions. [2024-11-24 00:00:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 701 states. [2024-11-24 00:00:04,503 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 0 states have call successors, (0), 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 103 [2024-11-24 00:00:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:05,494 INFO L225 Difference]: With dead ends: 658432 [2024-11-24 00:00:05,494 INFO L226 Difference]: Without dead ends: 556828 [2024-11-24 00:00:05,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 738 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253696 ImplicationChecksByTransitivity, 69.3s TimeCoverageRelationStatistics Valid=35133, Invalid=511727, Unknown=0, NotChecked=0, Total=546860 [2024-11-24 00:00:05,591 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 9804 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 10395 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9804 SdHoareTripleChecker+Valid, 7031 SdHoareTripleChecker+Invalid, 10633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 10395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:05,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9804 Valid, 7031 Invalid, 10633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [238 Valid, 10395 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-24 00:00:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556828 states. [2024-11-24 00:00:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556828 to 213574. [2024-11-24 00:00:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213574 states, 213573 states have (on average 1.3060733332396885) internal successors, (278942), 213573 states have internal predecessors, (278942), 0 states have call successors, (0), 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 00:00:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213574 states to 213574 states and 278942 transitions. [2024-11-24 00:00:10,549 INFO L78 Accepts]: Start accepts. Automaton has 213574 states and 278942 transitions. Word has length 103 [2024-11-24 00:00:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:10,549 INFO L471 AbstractCegarLoop]: Abstraction has 213574 states and 278942 transitions. [2024-11-24 00:00:10,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 0 states have call successors, (0), 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 00:00:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 213574 states and 278942 transitions. [2024-11-24 00:00:10,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:00:10,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:10,558 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:00:10,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:00:10,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:00:10,758 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:00:10,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:10,759 INFO L85 PathProgramCache]: Analyzing trace with hash 945568886, now seen corresponding path program 1 times [2024-11-24 00:00:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:10,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683603929] [2024-11-24 00:00:10,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:11,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:11,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683603929] [2024-11-24 00:00:11,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683603929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:00:11,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442919581] [2024-11-24 00:00:11,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:11,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:00:11,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:00:11,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:00:11,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:00:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:11,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:00:11,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:00:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:12,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:00:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:13,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442919581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:00:13,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:00:13,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-24 00:00:13,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149093018] [2024-11-24 00:00:13,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:00:13,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:00:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:13,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:00:13,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:00:13,300 INFO L87 Difference]: Start difference. First operand 213574 states and 278942 transitions. Second operand has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 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 00:00:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:15,409 INFO L93 Difference]: Finished difference Result 363208 states and 476261 transitions. [2024-11-24 00:00:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:00:15,410 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 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 103 [2024-11-24 00:00:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:15,755 INFO L225 Difference]: With dead ends: 363208 [2024-11-24 00:00:15,755 INFO L226 Difference]: Without dead ends: 314988 [2024-11-24 00:00:15,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=386, Invalid=1174, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:00:15,811 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 801 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:15,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 969 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:00:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314988 states. [2024-11-24 00:00:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314988 to 251255. [2024-11-24 00:00:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251255 states, 251254 states have (on average 1.3050578299250957) internal successors, (327901), 251254 states have internal predecessors, (327901), 0 states have call successors, (0), 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 00:00:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251255 states to 251255 states and 327901 transitions. [2024-11-24 00:00:19,413 INFO L78 Accepts]: Start accepts. Automaton has 251255 states and 327901 transitions. Word has length 103 [2024-11-24 00:00:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:19,413 INFO L471 AbstractCegarLoop]: Abstraction has 251255 states and 327901 transitions. [2024-11-24 00:00:19,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 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 00:00:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 251255 states and 327901 transitions. [2024-11-24 00:00:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:00:19,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:19,420 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:00:19,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:00:19,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:00:19,621 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:00:19,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740939, now seen corresponding path program 1 times [2024-11-24 00:00:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:19,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173839332] [2024-11-24 00:00:19,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:19,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:22,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:22,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173839332] [2024-11-24 00:00:22,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173839332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:00:22,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616423310] [2024-11-24 00:00:22,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:22,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:00:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:00:22,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:00:22,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45edd4bd-b557-40db-9e56-0fb8a8892fc6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:00:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:22,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-24 00:00:22,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:00:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:26,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:00:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:31,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616423310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:00:31,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:00:31,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 24] total 77 [2024-11-24 00:00:31,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887882154] [2024-11-24 00:00:31,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:00:31,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-24 00:00:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:31,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-24 00:00:31,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=5521, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:00:31,723 INFO L87 Difference]: Start difference. First operand 251255 states and 327901 transitions. Second operand has 77 states, 77 states have (on average 3.779220779220779) internal successors, (291), 77 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)