./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB --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 bbe82d9db46cc4877e8712955f17e418608577d83df9685a386a7b3e39c5f9b9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:22:39,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:22:39,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:22:39,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:22:39,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:22:39,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:22:39,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:22:39,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:22:39,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:22:39,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:22:39,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:22:39,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:22:39,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:22:39,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:22:39,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:22:39,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:22:39,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:22:39,710 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:22:39,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:39,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:39,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:39,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:22:39,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:22:39,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:22:39,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:22:39,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:22:39,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:22:39,713 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_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bbe82d9db46cc4877e8712955f17e418608577d83df9685a386a7b3e39c5f9b9 [2024-11-27 23:22:40,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:22:40,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:22:40,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:22:40,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:22:40,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:22:40,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i [2024-11-27 23:22:43,012 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/data/eb9738c5d/04d6fbaba5f04f1caab9f8173a670f74/FLAG3ba35e8f9 [2024-11-27 23:22:43,422 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:22:43,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i [2024-11-27 23:22:43,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/data/eb9738c5d/04d6fbaba5f04f1caab9f8173a670f74/FLAG3ba35e8f9 [2024-11-27 23:22:43,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/data/eb9738c5d/04d6fbaba5f04f1caab9f8173a670f74 [2024-11-27 23:22:43,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:22:43,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:22:43,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:43,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:22:43,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:22:43,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:43" (1/1) ... [2024-11-27 23:22:43,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a278b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:43, skipping insertion in model container [2024-11-27 23:22:43,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:43" (1/1) ... [2024-11-27 23:22:43,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:22:43,752 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_4226bc5c-f7bf-43dc-aedb-7c841282bfda/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i[916,929] [2024-11-27 23:22:44,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:44,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:22:44,059 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_4226bc5c-f7bf-43dc-aedb-7c841282bfda/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-96.i[916,929] [2024-11-27 23:22:44,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:44,246 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:22:44,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44 WrapperNode [2024-11-27 23:22:44,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:44,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:44,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:22:44,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:22:44,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,459 INFO L138 Inliner]: procedures = 26, calls = 78, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 734 [2024-11-27 23:22:44,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:44,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:22:44,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:22:44,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:22:44,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,606 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]. [2024-11-27 23:22:44,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:22:44,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:22:44,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:22:44,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:22:44,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (1/1) ... [2024-11-27 23:22:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:44,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:44,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:22:44,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:22:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:22:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:22:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:22:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:22:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:22:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:22:44,996 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:22:44,998 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:22:46,673 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-27 23:22:46,673 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:22:46,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:22:46,702 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:22:46,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:46 BoogieIcfgContainer [2024-11-27 23:22:46,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:22:46,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:22:46,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:22:46,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:22:46,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:22:43" (1/3) ... [2024-11-27 23:22:46,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@995f3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:46, skipping insertion in model container [2024-11-27 23:22:46,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:44" (2/3) ... [2024-11-27 23:22:46,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@995f3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:46, skipping insertion in model container [2024-11-27 23:22:46,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:46" (3/3) ... [2024-11-27 23:22:46,716 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-96.i [2024-11-27 23:22:46,747 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:22:46,752 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-96.i that has 2 procedures, 292 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:22:46,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:22:46,863 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;@7e4848e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:22:46,863 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:22:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 224 states have (on average 1.5535714285714286) internal successors, (348), 225 states have internal predecessors, (348), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:22:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:46,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:46,910 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:46,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:46,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 422084321, now seen corresponding path program 1 times [2024-11-27 23:22:46,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:46,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487724351] [2024-11-27 23:22:46,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:46,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2024-11-27 23:22:47,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487724351] [2024-11-27 23:22:47,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487724351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:47,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244505084] [2024-11-27 23:22:47,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:47,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:47,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:47,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:47,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:22:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:48,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:22:48,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2024-11-27 23:22:48,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:48,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244505084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:48,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:48,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:22:48,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107831604] [2024-11-27 23:22:48,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:48,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:22:48,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:48,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:22:48,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:22:48,647 INFO L87 Difference]: Start difference. First operand has 292 states, 224 states have (on average 1.5535714285714286) internal successors, (348), 225 states have internal predecessors, (348), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-27 23:22:48,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:48,705 INFO L93 Difference]: Finished difference Result 574 states and 1009 transitions. [2024-11-27 23:22:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:22:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) Word has length 455 [2024-11-27 23:22:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:48,718 INFO L225 Difference]: With dead ends: 574 [2024-11-27 23:22:48,719 INFO L226 Difference]: Without dead ends: 285 [2024-11-27 23:22:48,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:22:48,727 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:48,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:22:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-27 23:22:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-27 23:22:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 218 states have (on average 1.518348623853211) internal successors, (331), 218 states have internal predecessors, (331), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:22:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 461 transitions. [2024-11-27 23:22:48,836 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 461 transitions. Word has length 455 [2024-11-27 23:22:48,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:48,838 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 461 transitions. [2024-11-27 23:22:48,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-27 23:22:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 461 transitions. [2024-11-27 23:22:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:48,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:48,852 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:48,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:22:49,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4226bc5c-f7bf-43dc-aedb-7c841282bfda/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:22:49,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:49,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash 190587467, now seen corresponding path program 1 times [2024-11-27 23:22:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458281974] [2024-11-27 23:22:49,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:22:49,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:49,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458281974] [2024-11-27 23:22:49,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458281974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:49,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:49,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:22:49,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789694587] [2024-11-27 23:22:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:49,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:22:49,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:49,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:22:49,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:22:49,852 INFO L87 Difference]: Start difference. First operand 285 states and 461 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:50,036 INFO L93 Difference]: Finished difference Result 761 states and 1229 transitions. [2024-11-27 23:22:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:22:50,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 455 [2024-11-27 23:22:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:50,045 INFO L225 Difference]: With dead ends: 761 [2024-11-27 23:22:50,045 INFO L226 Difference]: Without dead ends: 479 [2024-11-27 23:22:50,050 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 [2024-11-27 23:22:50,051 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 283 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:50,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1119 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:50,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-27 23:22:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 476. [2024-11-27 23:22:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 388 states have (on average 1.541237113402062) internal successors, (598), 389 states have internal predecessors, (598), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 23:22:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 768 transitions. [2024-11-27 23:22:50,130 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 768 transitions. Word has length 455 [2024-11-27 23:22:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:50,132 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 768 transitions. [2024-11-27 23:22:50,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 768 transitions. [2024-11-27 23:22:50,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:50,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:50,145 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:50,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:22:50,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1886749431, now seen corresponding path program 1 times [2024-11-27 23:22:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:50,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768847101] [2024-11-27 23:22:50,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:22:50,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:50,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768847101] [2024-11-27 23:22:50,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768847101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:50,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:50,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:22:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178997260] [2024-11-27 23:22:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:50,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:22:50,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:50,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:22:50,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:50,861 INFO L87 Difference]: Start difference. First operand 476 states and 768 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:51,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:51,283 INFO L93 Difference]: Finished difference Result 1279 states and 2056 transitions. [2024-11-27 23:22:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:22:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 455 [2024-11-27 23:22:51,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:51,295 INFO L225 Difference]: With dead ends: 1279 [2024-11-27 23:22:51,296 INFO L226 Difference]: Without dead ends: 806 [2024-11-27 23:22:51,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:51,299 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 636 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:51,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1599 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:22:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-27 23:22:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 536. [2024-11-27 23:22:51,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 448 states have (on average 1.5647321428571428) internal successors, (701), 449 states have internal predecessors, (701), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 23:22:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 871 transitions. [2024-11-27 23:22:51,369 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 871 transitions. Word has length 455 [2024-11-27 23:22:51,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:51,373 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 871 transitions. [2024-11-27 23:22:51,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 871 transitions. [2024-11-27 23:22:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:51,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:51,388 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:51,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:22:51,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:51,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:51,390 INFO L85 PathProgramCache]: Analyzing trace with hash 841459915, now seen corresponding path program 1 times [2024-11-27 23:22:51,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:51,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384278188] [2024-11-27 23:22:51,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:22:51,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:51,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384278188] [2024-11-27 23:22:51,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384278188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:51,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:51,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:22:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954549870] [2024-11-27 23:22:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:51,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:22:51,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:51,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:22:51,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:22:51,980 INFO L87 Difference]: Start difference. First operand 536 states and 871 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:52,116 INFO L93 Difference]: Finished difference Result 1385 states and 2236 transitions. [2024-11-27 23:22:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:22:52,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 455 [2024-11-27 23:22:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:52,126 INFO L225 Difference]: With dead ends: 1385 [2024-11-27 23:22:52,126 INFO L226 Difference]: Without dead ends: 852 [2024-11-27 23:22:52,128 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 [2024-11-27 23:22:52,129 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 266 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:52,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1115 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:52,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-27 23:22:52,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 849. [2024-11-27 23:22:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 695 states have (on average 1.5338129496402877) internal successors, (1066), 698 states have internal predecessors, (1066), 149 states have call successors, (149), 4 states have call predecessors, (149), 4 states have return successors, (149), 146 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-27 23:22:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1364 transitions. [2024-11-27 23:22:52,229 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1364 transitions. Word has length 455 [2024-11-27 23:22:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:52,230 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1364 transitions. [2024-11-27 23:22:52,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1364 transitions. [2024-11-27 23:22:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:52,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:52,242 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:52,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:22:52,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:52,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:52,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1734946253, now seen corresponding path program 1 times [2024-11-27 23:22:52,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:52,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402311074] [2024-11-27 23:22:52,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:52,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:22:53,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:53,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402311074] [2024-11-27 23:22:53,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402311074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:53,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:22:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611248846] [2024-11-27 23:22:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:53,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:22:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:53,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:22:53,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:22:53,587 INFO L87 Difference]: Start difference. First operand 849 states and 1364 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:53,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:53,790 INFO L93 Difference]: Finished difference Result 2534 states and 4079 transitions. [2024-11-27 23:22:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:22:53,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 455 [2024-11-27 23:22:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:53,805 INFO L225 Difference]: With dead ends: 2534 [2024-11-27 23:22:53,805 INFO L226 Difference]: Without dead ends: 1688 [2024-11-27 23:22:53,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:22:53,810 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 320 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:53,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 991 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-11-27 23:22:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1686. [2024-11-27 23:22:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1379 states have (on average 1.5257432922407541) internal successors, (2104), 1385 states have internal predecessors, (2104), 298 states have call successors, (298), 8 states have call predecessors, (298), 8 states have return successors, (298), 292 states have call predecessors, (298), 298 states have call successors, (298) [2024-11-27 23:22:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2700 transitions. [2024-11-27 23:22:54,043 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2700 transitions. Word has length 455 [2024-11-27 23:22:54,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:54,044 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2700 transitions. [2024-11-27 23:22:54,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2700 transitions. [2024-11-27 23:22:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 23:22:54,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:54,054 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:54,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:22:54,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:54,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:54,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1789339151, now seen corresponding path program 1 times [2024-11-27 23:22:54,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:54,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808023910] [2024-11-27 23:22:54,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:54,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:22:55,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:55,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808023910] [2024-11-27 23:22:55,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808023910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:55,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:55,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:22:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938363827] [2024-11-27 23:22:55,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:55,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:22:55,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:55,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:22:55,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:55,651 INFO L87 Difference]: Start difference. First operand 1686 states and 2700 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:57,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:57,093 INFO L93 Difference]: Finished difference Result 4201 states and 6744 transitions. [2024-11-27 23:22:57,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:22:57,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 455 [2024-11-27 23:22:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:57,111 INFO L225 Difference]: With dead ends: 4201 [2024-11-27 23:22:57,112 INFO L226 Difference]: Without dead ends: 3355 [2024-11-27 23:22:57,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:22:57,116 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 919 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:57,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2072 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:22:57,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2024-11-27 23:22:57,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 2535. [2024-11-27 23:22:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2075 states have (on average 1.52) internal successors, (3154), 2084 states have internal predecessors, (3154), 447 states have call successors, (447), 12 states have call predecessors, (447), 12 states have return successors, (447), 438 states have call predecessors, (447), 447 states have call successors, (447) [2024-11-27 23:22:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 4048 transitions. [2024-11-27 23:22:57,473 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 4048 transitions. Word has length 455 [2024-11-27 23:22:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:57,476 INFO L471 AbstractCegarLoop]: Abstraction has 2535 states and 4048 transitions. [2024-11-27 23:22:57,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:22:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 4048 transitions. [2024-11-27 23:22:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-27 23:22:57,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:57,489 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:57,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:22:57,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:57,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash 252262127, now seen corresponding path program 1 times [2024-11-27 23:22:57,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:57,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119478837] [2024-11-27 23:22:57,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:57,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:03,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:03,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:03,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119478837] [2024-11-27 23:23:03,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119478837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:03,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:03,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:23:03,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60861449] [2024-11-27 23:23:03,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:03,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:23:03,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:03,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:23:03,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:23:03,276 INFO L87 Difference]: Start difference. First operand 2535 states and 4048 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-27 23:23:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:06,057 INFO L93 Difference]: Finished difference Result 8376 states and 13249 transitions. [2024-11-27 23:23:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:23:06,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 456 [2024-11-27 23:23:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:06,090 INFO L225 Difference]: With dead ends: 8376 [2024-11-27 23:23:06,090 INFO L226 Difference]: Without dead ends: 5844 [2024-11-27 23:23:06,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:23:06,099 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 1119 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:06,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1632 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:23:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2024-11-27 23:23:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 4958. [2024-11-27 23:23:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4958 states, 4438 states have (on average 1.5565570076611086) internal successors, (6908), 4459 states have internal predecessors, (6908), 495 states have call successors, (495), 24 states have call predecessors, (495), 24 states have return successors, (495), 474 states have call predecessors, (495), 495 states have call successors, (495) [2024-11-27 23:23:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4958 states to 4958 states and 7898 transitions. [2024-11-27 23:23:06,429 INFO L78 Accepts]: Start accepts. Automaton has 4958 states and 7898 transitions. Word has length 456 [2024-11-27 23:23:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:06,430 INFO L471 AbstractCegarLoop]: Abstraction has 4958 states and 7898 transitions. [2024-11-27 23:23:06,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-27 23:23:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4958 states and 7898 transitions. [2024-11-27 23:23:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-27 23:23:06,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:06,450 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:06,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:23:06,450 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:06,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash 165340348, now seen corresponding path program 1 times [2024-11-27 23:23:06,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:06,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406346153] [2024-11-27 23:23:06,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:26,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406346153] [2024-11-27 23:23:26,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406346153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:26,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:26,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:23:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185103956] [2024-11-27 23:23:26,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:26,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:23:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:26,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:23:26,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:23:26,472 INFO L87 Difference]: Start difference. First operand 4958 states and 7898 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2024-11-27 23:23:29,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:29,941 INFO L93 Difference]: Finished difference Result 11487 states and 18213 transitions. [2024-11-27 23:23:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:23:29,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 456 [2024-11-27 23:23:29,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:29,975 INFO L225 Difference]: With dead ends: 11487 [2024-11-27 23:23:29,976 INFO L226 Difference]: Without dead ends: 6532 [2024-11-27 23:23:29,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:23:29,987 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 1007 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:29,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1775 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:23:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2024-11-27 23:23:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 4958. [2024-11-27 23:23:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4958 states, 4438 states have (on average 1.5565570076611086) internal successors, (6908), 4459 states have internal predecessors, (6908), 495 states have call successors, (495), 24 states have call predecessors, (495), 24 states have return successors, (495), 474 states have call predecessors, (495), 495 states have call successors, (495) [2024-11-27 23:23:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4958 states to 4958 states and 7898 transitions. [2024-11-27 23:23:30,335 INFO L78 Accepts]: Start accepts. Automaton has 4958 states and 7898 transitions. Word has length 456 [2024-11-27 23:23:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:30,336 INFO L471 AbstractCegarLoop]: Abstraction has 4958 states and 7898 transitions. [2024-11-27 23:23:30,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2024-11-27 23:23:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4958 states and 7898 transitions. [2024-11-27 23:23:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-27 23:23:30,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:30,346 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:30,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:23:30,350 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:30,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:30,352 INFO L85 PathProgramCache]: Analyzing trace with hash 367164282, now seen corresponding path program 1 times [2024-11-27 23:23:30,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:30,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423608677] [2024-11-27 23:23:30,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:30,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:31,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:31,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423608677] [2024-11-27 23:23:31,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423608677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:31,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:31,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:23:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76528044] [2024-11-27 23:23:31,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:31,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:23:31,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:31,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:23:31,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:23:31,326 INFO L87 Difference]: Start difference. First operand 4958 states and 7898 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:32,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:32,100 INFO L93 Difference]: Finished difference Result 16814 states and 26645 transitions. [2024-11-27 23:23:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:23:32,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 456 [2024-11-27 23:23:32,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:32,161 INFO L225 Difference]: With dead ends: 16814 [2024-11-27 23:23:32,161 INFO L226 Difference]: Without dead ends: 11859 [2024-11-27 23:23:32,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:32,173 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 599 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:32,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1476 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:23:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11859 states. [2024-11-27 23:23:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11859 to 9911. [2024-11-27 23:23:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9911 states, 8872 states have (on average 1.5547790802524797) internal successors, (13794), 8914 states have internal predecessors, (13794), 990 states have call successors, (990), 48 states have call predecessors, (990), 48 states have return successors, (990), 948 states have call predecessors, (990), 990 states have call successors, (990) [2024-11-27 23:23:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9911 states to 9911 states and 15774 transitions. [2024-11-27 23:23:32,876 INFO L78 Accepts]: Start accepts. Automaton has 9911 states and 15774 transitions. Word has length 456 [2024-11-27 23:23:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:32,877 INFO L471 AbstractCegarLoop]: Abstraction has 9911 states and 15774 transitions. [2024-11-27 23:23:32,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9911 states and 15774 transitions. [2024-11-27 23:23:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-27 23:23:32,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:32,890 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:32,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:23:32,891 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:32,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1138531853, now seen corresponding path program 1 times [2024-11-27 23:23:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:32,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272878361] [2024-11-27 23:23:32,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:35,986 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:35,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:35,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272878361] [2024-11-27 23:23:35,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272878361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:35,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:35,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:23:35,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384778236] [2024-11-27 23:23:35,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:35,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:23:35,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:35,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:23:35,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:23:35,989 INFO L87 Difference]: Start difference. First operand 9911 states and 15774 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2024-11-27 23:23:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:37,895 INFO L93 Difference]: Finished difference Result 19873 states and 31653 transitions. [2024-11-27 23:23:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:23:37,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 457 [2024-11-27 23:23:37,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:37,930 INFO L225 Difference]: With dead ends: 19873 [2024-11-27 23:23:37,930 INFO L226 Difference]: Without dead ends: 9965 [2024-11-27 23:23:37,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:23:37,945 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 704 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:37,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1022 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:23:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2024-11-27 23:23:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 9965. [2024-11-27 23:23:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 8926 states have (on average 1.5514228097692135) internal successors, (13848), 8968 states have internal predecessors, (13848), 990 states have call successors, (990), 48 states have call predecessors, (990), 48 states have return successors, (990), 948 states have call predecessors, (990), 990 states have call successors, (990) [2024-11-27 23:23:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 15828 transitions. [2024-11-27 23:23:38,693 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 15828 transitions. Word has length 457 [2024-11-27 23:23:38,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:38,694 INFO L471 AbstractCegarLoop]: Abstraction has 9965 states and 15828 transitions. [2024-11-27 23:23:38,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2024-11-27 23:23:38,697 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 15828 transitions. [2024-11-27 23:23:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:23:38,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:38,710 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:23:38,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:38,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 896490889, now seen corresponding path program 1 times [2024-11-27 23:23:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:38,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52274398] [2024-11-27 23:23:38,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:38,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:40,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52274398] [2024-11-27 23:23:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52274398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:40,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:40,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:23:40,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201439521] [2024-11-27 23:23:40,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:40,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:23:40,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:40,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:23:40,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:40,476 INFO L87 Difference]: Start difference. First operand 9965 states and 15828 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:41,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:41,562 INFO L93 Difference]: Finished difference Result 25790 states and 40879 transitions. [2024-11-27 23:23:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:23:41,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:23:41,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:41,611 INFO L225 Difference]: With dead ends: 25790 [2024-11-27 23:23:41,611 INFO L226 Difference]: Without dead ends: 15828 [2024-11-27 23:23:41,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:23:41,628 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 357 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:41,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1647 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:23:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15828 states. [2024-11-27 23:23:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15828 to 10153. [2024-11-27 23:23:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 9048 states have (on average 1.5490716180371353) internal successors, (14016), 9090 states have internal predecessors, (14016), 1055 states have call successors, (1055), 49 states have call predecessors, (1055), 49 states have return successors, (1055), 1013 states have call predecessors, (1055), 1055 states have call successors, (1055) [2024-11-27 23:23:42,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 16126 transitions. [2024-11-27 23:23:42,463 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 16126 transitions. Word has length 458 [2024-11-27 23:23:42,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:42,464 INFO L471 AbstractCegarLoop]: Abstraction has 10153 states and 16126 transitions. [2024-11-27 23:23:42,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 16126 transitions. [2024-11-27 23:23:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:23:42,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:42,479 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:42,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:23:42,479 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:42,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1014551669, now seen corresponding path program 1 times [2024-11-27 23:23:42,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:42,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572755481] [2024-11-27 23:23:42,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:42,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:43,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:43,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572755481] [2024-11-27 23:23:43,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572755481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:43,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:43,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:23:43,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338575697] [2024-11-27 23:23:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:43,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:23:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:43,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:23:43,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:43,878 INFO L87 Difference]: Start difference. First operand 10153 states and 16126 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:44,983 INFO L93 Difference]: Finished difference Result 25841 states and 40947 transitions. [2024-11-27 23:23:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:23:44,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:23:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:45,033 INFO L225 Difference]: With dead ends: 25841 [2024-11-27 23:23:45,033 INFO L226 Difference]: Without dead ends: 15825 [2024-11-27 23:23:45,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:23:45,052 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 436 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:45,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1683 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:23:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2024-11-27 23:23:45,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 10150. [2024-11-27 23:23:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10150 states, 9045 states have (on average 1.5485903814262023) internal successors, (14007), 9087 states have internal predecessors, (14007), 1055 states have call successors, (1055), 49 states have call predecessors, (1055), 49 states have return successors, (1055), 1013 states have call predecessors, (1055), 1055 states have call successors, (1055) [2024-11-27 23:23:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10150 states to 10150 states and 16117 transitions. [2024-11-27 23:23:45,863 INFO L78 Accepts]: Start accepts. Automaton has 10150 states and 16117 transitions. Word has length 458 [2024-11-27 23:23:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:45,863 INFO L471 AbstractCegarLoop]: Abstraction has 10150 states and 16117 transitions. [2024-11-27 23:23:45,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:45,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10150 states and 16117 transitions. [2024-11-27 23:23:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:23:45,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:45,877 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:45,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:23:45,878 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:45,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1225979253, now seen corresponding path program 1 times [2024-11-27 23:23:45,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:45,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28419655] [2024-11-27 23:23:45,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:51,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:51,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28419655] [2024-11-27 23:23:51,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28419655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:51,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:51,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:23:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767253499] [2024-11-27 23:23:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:23:51,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:51,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:23:51,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:23:51,244 INFO L87 Difference]: Start difference. First operand 10150 states and 16117 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:55,196 INFO L93 Difference]: Finished difference Result 34132 states and 53594 transitions. [2024-11-27 23:23:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:23:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:23:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:55,259 INFO L225 Difference]: With dead ends: 34132 [2024-11-27 23:23:55,259 INFO L226 Difference]: Without dead ends: 24170 [2024-11-27 23:23:55,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:23:55,278 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 2689 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:55,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 2807 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 23:23:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24170 states. [2024-11-27 23:23:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24170 to 21182. [2024-11-27 23:23:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21182 states, 19039 states have (on average 1.545721939177478) internal successors, (29429), 19123 states have internal predecessors, (29429), 2045 states have call successors, (2045), 97 states have call predecessors, (2045), 97 states have return successors, (2045), 1961 states have call predecessors, (2045), 2045 states have call successors, (2045) [2024-11-27 23:23:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21182 states to 21182 states and 33519 transitions. [2024-11-27 23:23:56,774 INFO L78 Accepts]: Start accepts. Automaton has 21182 states and 33519 transitions. Word has length 458 [2024-11-27 23:23:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:56,775 INFO L471 AbstractCegarLoop]: Abstraction has 21182 states and 33519 transitions. [2024-11-27 23:23:56,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21182 states and 33519 transitions. [2024-11-27 23:23:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:23:56,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:56,795 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:56,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:23:56,796 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:56,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash -951219639, now seen corresponding path program 1 times [2024-11-27 23:23:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:56,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111540368] [2024-11-27 23:23:56,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:23:57,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:57,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111540368] [2024-11-27 23:23:57,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111540368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:57,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:57,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:23:57,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253132298] [2024-11-27 23:23:57,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:57,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:23:57,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:57,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:23:57,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:23:57,864 INFO L87 Difference]: Start difference. First operand 21182 states and 33519 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:23:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:59,362 INFO L93 Difference]: Finished difference Result 73738 states and 116447 transitions. [2024-11-27 23:23:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:23:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:23:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:59,493 INFO L225 Difference]: With dead ends: 73738 [2024-11-27 23:23:59,493 INFO L226 Difference]: Without dead ends: 52670 [2024-11-27 23:23:59,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:59,532 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 612 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:59,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1499 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:23:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52670 states. [2024-11-27 23:24:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52670 to 42030. [2024-11-27 23:24:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42030 states, 37811 states have (on average 1.5443653963132422) internal successors, (58394), 37979 states have internal predecessors, (58394), 4025 states have call successors, (4025), 193 states have call predecessors, (4025), 193 states have return successors, (4025), 3857 states have call predecessors, (4025), 4025 states have call successors, (4025) [2024-11-27 23:24:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42030 states to 42030 states and 66444 transitions. [2024-11-27 23:24:03,015 INFO L78 Accepts]: Start accepts. Automaton has 42030 states and 66444 transitions. Word has length 458 [2024-11-27 23:24:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:03,015 INFO L471 AbstractCegarLoop]: Abstraction has 42030 states and 66444 transitions. [2024-11-27 23:24:03,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:24:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 42030 states and 66444 transitions. [2024-11-27 23:24:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:24:03,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:03,048 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:03,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:24:03,048 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:03,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1721953205, now seen corresponding path program 1 times [2024-11-27 23:24:03,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:03,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288913619] [2024-11-27 23:24:03,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:03,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:24:04,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:04,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288913619] [2024-11-27 23:24:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288913619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:04,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:04,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:04,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034971513] [2024-11-27 23:24:04,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:04,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:04,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:04,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:04,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:04,054 INFO L87 Difference]: Start difference. First operand 42030 states and 66444 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:24:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:06,474 INFO L93 Difference]: Finished difference Result 106021 states and 167037 transitions. [2024-11-27 23:24:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:24:06,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:06,614 INFO L225 Difference]: With dead ends: 106021 [2024-11-27 23:24:06,614 INFO L226 Difference]: Without dead ends: 64116 [2024-11-27 23:24:06,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:06,678 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 498 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:06,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1361 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:24:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64116 states. [2024-11-27 23:24:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64116 to 42030. [2024-11-27 23:24:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42030 states, 37811 states have (on average 1.544286054322816) internal successors, (58391), 37979 states have internal predecessors, (58391), 4025 states have call successors, (4025), 193 states have call predecessors, (4025), 193 states have return successors, (4025), 3857 states have call predecessors, (4025), 4025 states have call successors, (4025) [2024-11-27 23:24:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42030 states to 42030 states and 66441 transitions. [2024-11-27 23:24:10,211 INFO L78 Accepts]: Start accepts. Automaton has 42030 states and 66441 transitions. Word has length 458 [2024-11-27 23:24:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:10,212 INFO L471 AbstractCegarLoop]: Abstraction has 42030 states and 66441 transitions. [2024-11-27 23:24:10,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:24:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 42030 states and 66441 transitions. [2024-11-27 23:24:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:24:10,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:10,253 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:10,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:24:10,253 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:10,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:10,254 INFO L85 PathProgramCache]: Analyzing trace with hash 693883145, now seen corresponding path program 1 times [2024-11-27 23:24:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:10,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102052186] [2024-11-27 23:24:10,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:10,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-27 23:24:11,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:11,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102052186] [2024-11-27 23:24:11,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102052186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:11,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:11,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:11,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090625831] [2024-11-27 23:24:11,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:11,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:11,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:11,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:11,560 INFO L87 Difference]: Start difference. First operand 42030 states and 66441 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:24:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:16,515 INFO L93 Difference]: Finished difference Result 138740 states and 219136 transitions. [2024-11-27 23:24:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 458 [2024-11-27 23:24:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:16,742 INFO L225 Difference]: With dead ends: 138740 [2024-11-27 23:24:16,742 INFO L226 Difference]: Without dead ends: 96898 [2024-11-27 23:24:16,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:16,820 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 832 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:16,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1486 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:24:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96898 states. [2024-11-27 23:24:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96898 to 95814. [2024-11-27 23:24:21,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95814 states, 85714 states have (on average 1.5392001306671022) internal successors, (131931), 86138 states have internal predecessors, (131931), 9617 states have call successors, (9617), 482 states have call predecessors, (9617), 482 states have return successors, (9617), 9193 states have call predecessors, (9617), 9617 states have call successors, (9617) [2024-11-27 23:24:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95814 states to 95814 states and 151165 transitions. [2024-11-27 23:24:21,799 INFO L78 Accepts]: Start accepts. Automaton has 95814 states and 151165 transitions. Word has length 458 [2024-11-27 23:24:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:21,800 INFO L471 AbstractCegarLoop]: Abstraction has 95814 states and 151165 transitions. [2024-11-27 23:24:21,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-27 23:24:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 95814 states and 151165 transitions. [2024-11-27 23:24:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-27 23:24:21,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:21,876 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:21,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:24:21,877 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:21,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:21,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2041183381, now seen corresponding path program 1 times [2024-11-27 23:24:21,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:21,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271739830] [2024-11-27 23:24:21,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:21,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat