./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/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 4639c6b0fb22706997cf521ef330c95d8a0fb320eefb7d80395f3064e0e7914f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:37,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:37,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:37,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:37,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:37,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:37,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:37,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:37,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:37,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:37,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:37,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:37,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:37,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:37,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:37,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:37,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:37,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:37,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:37,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:37,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:37,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:37,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:37,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:37,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:37,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:37,833 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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/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 -> 4639c6b0fb22706997cf521ef330c95d8a0fb320eefb7d80395f3064e0e7914f [2024-11-28 02:07:38,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:38,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:38,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:38,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:38,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:38,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.i [2024-11-28 02:07:41,146 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/data/c25f2e374/9bdb476dda294bdc82ae299a9e713aab/FLAG2106ff5a1 [2024-11-28 02:07:41,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:41,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.i [2024-11-28 02:07:41,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/data/c25f2e374/9bdb476dda294bdc82ae299a9e713aab/FLAG2106ff5a1 [2024-11-28 02:07:41,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/data/c25f2e374/9bdb476dda294bdc82ae299a9e713aab [2024-11-28 02:07:41,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:41,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:41,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:41,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:41,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:41,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:41" (1/1) ... [2024-11-28 02:07:41,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd2d064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:41, skipping insertion in model container [2024-11-28 02:07:41,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:41" (1/1) ... [2024-11-28 02:07:41,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:41,752 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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.i[915,928] [2024-11-28 02:07:41,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:41,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:41,989 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_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-5.i[915,928] [2024-11-28 02:07:42,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:42,108 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:42,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42 WrapperNode [2024-11-28 02:07:42,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:42,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:42,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:42,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:42,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,248 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-11-28 02:07:42,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:42,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:42,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:42,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:42,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,372 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]. [2024-11-28 02:07:42,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:42,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:42,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:42,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:42,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (1/1) ... [2024-11-28 02:07:42,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:42,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:42,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:42,672 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:42,675 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:43,820 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:43,820 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:43,841 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:43,842 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:43,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:43 BoogieIcfgContainer [2024-11-28 02:07:43,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:43,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:43,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:43,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:43,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:41" (1/3) ... [2024-11-28 02:07:43,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d172a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:43, skipping insertion in model container [2024-11-28 02:07:43,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:42" (2/3) ... [2024-11-28 02:07:43,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d172a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:43, skipping insertion in model container [2024-11-28 02:07:43,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:43" (3/3) ... [2024-11-28 02:07:43,857 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-5.i [2024-11-28 02:07:43,874 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:43,878 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-5.i that has 2 procedures, 169 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:43,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:43,974 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;@691b6b61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:43,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 131 states have (on average 1.5419847328244274) internal successors, (202), 132 states have internal predecessors, (202), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-28 02:07:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 02:07:44,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:44,002 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:44,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:44,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1525575319, now seen corresponding path program 1 times [2024-11-28 02:07:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:44,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738086540] [2024-11-28 02:07:44,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:44,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2024-11-28 02:07:44,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738086540] [2024-11-28 02:07:44,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738086540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076827742] [2024-11-28 02:07:44,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:44,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:44,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:44,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:44,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:44,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:44,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2024-11-28 02:07:45,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:45,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076827742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:45,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:45,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:07:45,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473181381] [2024-11-28 02:07:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:45,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:45,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:45,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:45,076 INFO L87 Difference]: Start difference. First operand has 169 states, 131 states have (on average 1.5419847328244274) internal successors, (202), 132 states have internal predecessors, (202), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:07:45,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:45,155 INFO L93 Difference]: Finished difference Result 331 states and 573 transitions. [2024-11-28 02:07:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 249 [2024-11-28 02:07:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:45,168 INFO L225 Difference]: With dead ends: 331 [2024-11-28 02:07:45,169 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 02:07:45,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:45,179 INFO L435 NwaCegarLoop]: 263 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, 263 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 [2024-11-28 02:07:45,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 02:07:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-28 02:07:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 128 states have (on average 1.5078125) internal successors, (193), 128 states have internal predecessors, (193), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-28 02:07:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 263 transitions. [2024-11-28 02:07:45,238 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 263 transitions. Word has length 249 [2024-11-28 02:07:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:45,239 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 263 transitions. [2024-11-28 02:07:45,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:07:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 263 transitions. [2024-11-28 02:07:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 02:07:45,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:45,245 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:45,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:45,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:07:45,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:45,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:45,447 INFO L85 PathProgramCache]: Analyzing trace with hash -364092613, now seen corresponding path program 1 times [2024-11-28 02:07:45,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:45,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437356652] [2024-11-28 02:07:45,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:07:46,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:46,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437356652] [2024-11-28 02:07:46,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437356652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:46,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:46,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:46,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933426209] [2024-11-28 02:07:46,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:46,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:46,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:46,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:46,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:46,682 INFO L87 Difference]: Start difference. First operand 165 states and 263 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:47,322 INFO L93 Difference]: Finished difference Result 548 states and 885 transitions. [2024-11-28 02:07:47,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:47,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 249 [2024-11-28 02:07:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:47,329 INFO L225 Difference]: With dead ends: 548 [2024-11-28 02:07:47,332 INFO L226 Difference]: Without dead ends: 386 [2024-11-28 02:07:47,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:47,335 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 292 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:47,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1111 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:07:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-28 02:07:47,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 243. [2024-11-28 02:07:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 170 states have (on average 1.4352941176470588) internal successors, (244), 170 states have internal predecessors, (244), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 02:07:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 384 transitions. [2024-11-28 02:07:47,402 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 384 transitions. Word has length 249 [2024-11-28 02:07:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:47,405 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 384 transitions. [2024-11-28 02:07:47,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 384 transitions. [2024-11-28 02:07:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 02:07:47,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:47,414 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:47,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:47,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:47,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash 794722371, now seen corresponding path program 1 times [2024-11-28 02:07:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537416641] [2024-11-28 02:07:47,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:47,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:07:48,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537416641] [2024-11-28 02:07:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537416641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:48,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:07:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811185294] [2024-11-28 02:07:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:48,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:07:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:48,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:07:48,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:48,566 INFO L87 Difference]: Start difference. First operand 243 states and 384 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:49,776 INFO L93 Difference]: Finished difference Result 568 states and 907 transitions. [2024-11-28 02:07:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:07:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 249 [2024-11-28 02:07:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:49,781 INFO L225 Difference]: With dead ends: 568 [2024-11-28 02:07:49,782 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 02:07:49,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:07:49,784 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 543 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:49,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1616 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:07:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 02:07:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 343. [2024-11-28 02:07:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 270 states have (on average 1.5148148148148148) internal successors, (409), 270 states have internal predecessors, (409), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 02:07:49,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 549 transitions. [2024-11-28 02:07:49,850 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 549 transitions. Word has length 249 [2024-11-28 02:07:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:49,851 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 549 transitions. [2024-11-28 02:07:49,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 549 transitions. [2024-11-28 02:07:49,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-28 02:07:49,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:49,858 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:49,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:49,859 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:49,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:49,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2135390351, now seen corresponding path program 1 times [2024-11-28 02:07:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:49,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208756563] [2024-11-28 02:07:49,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:49,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:07:50,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208756563] [2024-11-28 02:07:50,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208756563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:50,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:50,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656167575] [2024-11-28 02:07:50,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:50,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:50,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:50,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:50,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:50,551 INFO L87 Difference]: Start difference. First operand 343 states and 549 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:50,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:50,951 INFO L93 Difference]: Finished difference Result 968 states and 1561 transitions. [2024-11-28 02:07:50,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:50,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 250 [2024-11-28 02:07:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:50,959 INFO L225 Difference]: With dead ends: 968 [2024-11-28 02:07:50,962 INFO L226 Difference]: Without dead ends: 704 [2024-11-28 02:07:50,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:50,964 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 344 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:50,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 862 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:07:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-28 02:07:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 603. [2024-11-28 02:07:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 494 states have (on average 1.5303643724696356) internal successors, (756), 494 states have internal predecessors, (756), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 02:07:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 966 transitions. [2024-11-28 02:07:51,051 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 966 transitions. Word has length 250 [2024-11-28 02:07:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:51,053 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 966 transitions. [2024-11-28 02:07:51,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 966 transitions. [2024-11-28 02:07:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-28 02:07:51,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:51,057 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:51,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:51,058 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash -243924746, now seen corresponding path program 1 times [2024-11-28 02:07:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957956106] [2024-11-28 02:07:51,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:07:52,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957956106] [2024-11-28 02:07:52,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957956106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:52,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:52,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:07:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822818026] [2024-11-28 02:07:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:52,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:07:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:52,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:07:52,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:07:52,156 INFO L87 Difference]: Start difference. First operand 603 states and 966 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:07:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:53,240 INFO L93 Difference]: Finished difference Result 1402 states and 2243 transitions. [2024-11-28 02:07:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:07:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 251 [2024-11-28 02:07:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:53,247 INFO L225 Difference]: With dead ends: 1402 [2024-11-28 02:07:53,248 INFO L226 Difference]: Without dead ends: 1019 [2024-11-28 02:07:53,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:07:53,250 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 962 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:53,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1290 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:07:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-28 02:07:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 729. [2024-11-28 02:07:53,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 620 states have (on average 1.5548387096774194) internal successors, (964), 620 states have internal predecessors, (964), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 02:07:53,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1174 transitions. [2024-11-28 02:07:53,327 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1174 transitions. Word has length 251 [2024-11-28 02:07:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:53,330 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1174 transitions. [2024-11-28 02:07:53,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:07:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1174 transitions. [2024-11-28 02:07:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-28 02:07:53,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:53,334 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:53,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:07:53,334 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:53,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1849732463, now seen corresponding path program 1 times [2024-11-28 02:07:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:53,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426512724] [2024-11-28 02:07:53,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:53,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:07:54,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:54,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426512724] [2024-11-28 02:07:54,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426512724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:54,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:54,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:54,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660489789] [2024-11-28 02:07:54,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:54,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:54,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:54,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:54,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:54,007 INFO L87 Difference]: Start difference. First operand 729 states and 1174 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:54,314 INFO L93 Difference]: Finished difference Result 2175 states and 3499 transitions. [2024-11-28 02:07:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 251 [2024-11-28 02:07:54,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:54,329 INFO L225 Difference]: With dead ends: 2175 [2024-11-28 02:07:54,329 INFO L226 Difference]: Without dead ends: 1768 [2024-11-28 02:07:54,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:54,331 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 390 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:54,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 721 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:07:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-11-28 02:07:54,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1477. [2024-11-28 02:07:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1330 states have (on average 1.5827067669172932) internal successors, (2105), 1332 states have internal predecessors, (2105), 141 states have call successors, (141), 5 states have call predecessors, (141), 5 states have return successors, (141), 139 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 02:07:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2387 transitions. [2024-11-28 02:07:54,456 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2387 transitions. Word has length 251 [2024-11-28 02:07:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:54,458 INFO L471 AbstractCegarLoop]: Abstraction has 1477 states and 2387 transitions. [2024-11-28 02:07:54,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:07:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2387 transitions. [2024-11-28 02:07:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-28 02:07:54,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:54,468 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:54,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:54,468 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:54,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:54,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1176911064, now seen corresponding path program 1 times [2024-11-28 02:07:54,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:54,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196158520] [2024-11-28 02:07:54,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:54,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 36 proven. 66 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:07:55,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196158520] [2024-11-28 02:07:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196158520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836295510] [2024-11-28 02:07:55,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:55,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:55,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:55,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:55,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:55,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:07:55,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1212 proven. 45 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2024-11-28 02:07:56,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 57 proven. 45 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:07:56,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836295510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:56,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:56,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 11 [2024-11-28 02:07:56,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903594711] [2024-11-28 02:07:56,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:56,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:07:56,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:56,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:07:56,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:07:56,655 INFO L87 Difference]: Start difference. First operand 1477 states and 2387 transitions. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) [2024-11-28 02:07:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:57,852 INFO L93 Difference]: Finished difference Result 2957 states and 4739 transitions. [2024-11-28 02:07:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:07:57,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) Word has length 252 [2024-11-28 02:07:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:57,861 INFO L225 Difference]: With dead ends: 2957 [2024-11-28 02:07:57,861 INFO L226 Difference]: Without dead ends: 1553 [2024-11-28 02:07:57,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 501 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:07:57,865 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 1151 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:57,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1475 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:07:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-28 02:07:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1304. [2024-11-28 02:07:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1115 states have (on average 1.5291479820627802) internal successors, (1705), 1115 states have internal predecessors, (1705), 175 states have call successors, (175), 13 states have call predecessors, (175), 13 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2024-11-28 02:07:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 2055 transitions. [2024-11-28 02:07:57,965 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 2055 transitions. Word has length 252 [2024-11-28 02:07:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:57,965 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 2055 transitions. [2024-11-28 02:07:57,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 4 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) [2024-11-28 02:07:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 2055 transitions. [2024-11-28 02:07:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:07:57,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:57,970 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:57,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:58,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:58,171 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1478687444, now seen corresponding path program 1 times [2024-11-28 02:07:58,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:58,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161654223] [2024-11-28 02:07:58,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:08:00,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:00,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161654223] [2024-11-28 02:08:00,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161654223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:00,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:08:00,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276133817] [2024-11-28 02:08:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:00,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:08:00,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:00,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:08:00,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:08:00,135 INFO L87 Difference]: Start difference. First operand 1304 states and 2055 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,945 INFO L93 Difference]: Finished difference Result 5150 states and 7970 transitions. [2024-11-28 02:08:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:08:01,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 254 [2024-11-28 02:08:01,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,968 INFO L225 Difference]: With dead ends: 5150 [2024-11-28 02:08:01,968 INFO L226 Difference]: Without dead ends: 4184 [2024-11-28 02:08:01,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:08:01,973 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 1407 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:01,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1405 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:08:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2024-11-28 02:08:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 3402. [2024-11-28 02:08:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 2906 states have (on average 1.5003441156228492) internal successors, (4360), 2918 states have internal predecessors, (4360), 459 states have call successors, (459), 36 states have call predecessors, (459), 36 states have return successors, (459), 447 states have call predecessors, (459), 459 states have call successors, (459) [2024-11-28 02:08:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 5278 transitions. [2024-11-28 02:08:02,265 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 5278 transitions. Word has length 254 [2024-11-28 02:08:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,266 INFO L471 AbstractCegarLoop]: Abstraction has 3402 states and 5278 transitions. [2024-11-28 02:08:02,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 5278 transitions. [2024-11-28 02:08:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:02,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:02,274 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:08:02,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:02,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash -353825006, now seen corresponding path program 1 times [2024-11-28 02:08:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664294800] [2024-11-28 02:08:02,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 66 proven. 36 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:08:03,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664294800] [2024-11-28 02:08:03,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664294800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757207308] [2024-11-28 02:08:03,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:03,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:03,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:03,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:03,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:08:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:08:03,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1134 proven. 36 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2024-11-28 02:08:04,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 66 proven. 36 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:08:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757207308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:04,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:08:04,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-11-28 02:08:04,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631356929] [2024-11-28 02:08:04,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:04,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:08:04,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:04,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:08:04,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:08:04,485 INFO L87 Difference]: Start difference. First operand 3402 states and 5278 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-28 02:08:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:07,157 INFO L93 Difference]: Finished difference Result 11110 states and 16946 transitions. [2024-11-28 02:08:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 02:08:07,158 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 254 [2024-11-28 02:08:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:07,199 INFO L225 Difference]: With dead ends: 11110 [2024-11-28 02:08:07,199 INFO L226 Difference]: Without dead ends: 8286 [2024-11-28 02:08:07,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 506 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:08:07,208 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 1526 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:07,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 2013 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 02:08:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2024-11-28 02:08:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 6760. [2024-11-28 02:08:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 5769 states have (on average 1.470792165019934) internal successors, (8485), 5801 states have internal predecessors, (8485), 903 states have call successors, (903), 87 states have call predecessors, (903), 87 states have return successors, (903), 871 states have call predecessors, (903), 903 states have call successors, (903) [2024-11-28 02:08:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 10291 transitions. [2024-11-28 02:08:07,823 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 10291 transitions. Word has length 254 [2024-11-28 02:08:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:07,825 INFO L471 AbstractCegarLoop]: Abstraction has 6760 states and 10291 transitions. [2024-11-28 02:08:07,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-28 02:08:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 10291 transitions. [2024-11-28 02:08:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:07,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:07,834 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:07,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:08:08,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:08,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:08,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:08,036 INFO L85 PathProgramCache]: Analyzing trace with hash -385221164, now seen corresponding path program 1 times [2024-11-28 02:08:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:08,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635748453] [2024-11-28 02:08:08,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:08,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:08:08,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:08,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635748453] [2024-11-28 02:08:08,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635748453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:08,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:08,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759931962] [2024-11-28 02:08:08,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:08,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:08,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:08,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:08,800 INFO L87 Difference]: Start difference. First operand 6760 states and 10291 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:10,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:10,211 INFO L93 Difference]: Finished difference Result 19070 states and 28701 transitions. [2024-11-28 02:08:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:08:10,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 254 [2024-11-28 02:08:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:10,290 INFO L225 Difference]: With dead ends: 19070 [2024-11-28 02:08:10,290 INFO L226 Difference]: Without dead ends: 13090 [2024-11-28 02:08:10,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:08:10,308 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 607 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:10,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 1187 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:08:10,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states. [2024-11-28 02:08:11,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 9760. [2024-11-28 02:08:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9760 states, 8691 states have (on average 1.4931538373029571) internal successors, (12977), 8727 states have internal predecessors, (12977), 975 states have call successors, (975), 93 states have call predecessors, (975), 93 states have return successors, (975), 939 states have call predecessors, (975), 975 states have call successors, (975) [2024-11-28 02:08:11,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9760 states to 9760 states and 14927 transitions. [2024-11-28 02:08:11,069 INFO L78 Accepts]: Start accepts. Automaton has 9760 states and 14927 transitions. Word has length 254 [2024-11-28 02:08:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:11,070 INFO L471 AbstractCegarLoop]: Abstraction has 9760 states and 14927 transitions. [2024-11-28 02:08:11,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 9760 states and 14927 transitions. [2024-11-28 02:08:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:11,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:11,082 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:11,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:08:11,082 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:11,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 634681942, now seen corresponding path program 1 times [2024-11-28 02:08:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:11,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239332622] [2024-11-28 02:08:11,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:11,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:08:11,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:11,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239332622] [2024-11-28 02:08:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239332622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:11,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214445571] [2024-11-28 02:08:11,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:11,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:11,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:11,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:11,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:11,218 INFO L87 Difference]: Start difference. First operand 9760 states and 14927 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:11,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:11,925 INFO L93 Difference]: Finished difference Result 17470 states and 26517 transitions. [2024-11-28 02:08:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:08:11,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 254 [2024-11-28 02:08:11,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:11,972 INFO L225 Difference]: With dead ends: 17470 [2024-11-28 02:08:11,972 INFO L226 Difference]: Without dead ends: 10888 [2024-11-28 02:08:11,988 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 [2024-11-28 02:08:11,988 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 219 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:11,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 512 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10888 states. [2024-11-28 02:08:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10888 to 10474. [2024-11-28 02:08:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 8909 states have (on average 1.4545964754742395) internal successors, (12959), 8961 states have internal predecessors, (12959), 1415 states have call successors, (1415), 149 states have call predecessors, (1415), 149 states have return successors, (1415), 1363 states have call predecessors, (1415), 1415 states have call successors, (1415) [2024-11-28 02:08:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15789 transitions. [2024-11-28 02:08:13,102 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15789 transitions. Word has length 254 [2024-11-28 02:08:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:13,103 INFO L471 AbstractCegarLoop]: Abstraction has 10474 states and 15789 transitions. [2024-11-28 02:08:13,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15789 transitions. [2024-11-28 02:08:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:13,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:13,112 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:13,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:08:13,112 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:13,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1335746520, now seen corresponding path program 1 times [2024-11-28 02:08:13,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:13,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620947212] [2024-11-28 02:08:13,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:08:13,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:13,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620947212] [2024-11-28 02:08:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620947212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:13,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:13,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002686037] [2024-11-28 02:08:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:13,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:13,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:13,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:13,955 INFO L87 Difference]: Start difference. First operand 10474 states and 15789 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:15,625 INFO L93 Difference]: Finished difference Result 20414 states and 30467 transitions. [2024-11-28 02:08:15,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:08:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 254 [2024-11-28 02:08:15,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:15,675 INFO L225 Difference]: With dead ends: 20414 [2024-11-28 02:08:15,675 INFO L226 Difference]: Without dead ends: 12976 [2024-11-28 02:08:15,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:15,696 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 604 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:15,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 972 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:08:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12976 states. [2024-11-28 02:08:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12976 to 8988. [2024-11-28 02:08:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 7625 states have (on average 1.4482622950819672) internal successors, (11043), 7665 states have internal predecessors, (11043), 1215 states have call successors, (1215), 147 states have call predecessors, (1215), 147 states have return successors, (1215), 1175 states have call predecessors, (1215), 1215 states have call successors, (1215) [2024-11-28 02:08:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 13473 transitions. [2024-11-28 02:08:16,569 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 13473 transitions. Word has length 254 [2024-11-28 02:08:16,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:16,570 INFO L471 AbstractCegarLoop]: Abstraction has 8988 states and 13473 transitions. [2024-11-28 02:08:16,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-28 02:08:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 13473 transitions. [2024-11-28 02:08:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:16,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:16,579 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:16,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:08:16,579 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:16,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:16,580 INFO L85 PathProgramCache]: Analyzing trace with hash -496765930, now seen corresponding path program 1 times [2024-11-28 02:08:16,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:16,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291036250] [2024-11-28 02:08:16,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:16,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 42 proven. 60 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:08:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291036250] [2024-11-28 02:08:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291036250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829491490] [2024-11-28 02:08:17,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:17,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:17,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:17,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:17,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:08:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:18,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 02:08:18,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1204 proven. 114 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-28 02:08:19,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 84 proven. 117 refuted. 0 times theorem prover too weak. 2179 trivial. 0 not checked. [2024-11-28 02:08:22,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829491490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:22,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:08:22,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 14] total 34 [2024-11-28 02:08:22,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694863307] [2024-11-28 02:08:22,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:22,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 02:08:22,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:22,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 02:08:22,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:08:22,256 INFO L87 Difference]: Start difference. First operand 8988 states and 13473 transitions. Second operand has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 8 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 8 states have call predecessors, (105), 8 states have call successors, (105) [2024-11-28 02:08:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:27,351 INFO L93 Difference]: Finished difference Result 27185 states and 40389 transitions. [2024-11-28 02:08:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 02:08:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 8 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 8 states have call predecessors, (105), 8 states have call successors, (105) Word has length 254 [2024-11-28 02:08:27,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:27,412 INFO L225 Difference]: With dead ends: 27185 [2024-11-28 02:08:27,412 INFO L226 Difference]: Without dead ends: 19837 [2024-11-28 02:08:27,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=823, Invalid=3083, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 02:08:27,427 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 3172 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:27,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 2265 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 02:08:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2024-11-28 02:08:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 12511. [2024-11-28 02:08:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12511 states, 11145 states have (on average 1.4672050246747421) internal successors, (16352), 11185 states have internal predecessors, (16352), 1215 states have call successors, (1215), 150 states have call predecessors, (1215), 150 states have return successors, (1215), 1175 states have call predecessors, (1215), 1215 states have call successors, (1215) [2024-11-28 02:08:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12511 states to 12511 states and 18782 transitions. [2024-11-28 02:08:28,716 INFO L78 Accepts]: Start accepts. Automaton has 12511 states and 18782 transitions. Word has length 254 [2024-11-28 02:08:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:28,718 INFO L471 AbstractCegarLoop]: Abstraction has 12511 states and 18782 transitions. [2024-11-28 02:08:28,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 8 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 8 states have call predecessors, (105), 8 states have call successors, (105) [2024-11-28 02:08:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 12511 states and 18782 transitions. [2024-11-28 02:08:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-28 02:08:28,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:28,733 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:28,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:08:28,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:08:28,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:28,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash 577497753, now seen corresponding path program 1 times [2024-11-28 02:08:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:28,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039699766] [2024-11-28 02:08:28,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 84 proven. 114 refuted. 0 times theorem prover too weak. 2182 trivial. 0 not checked. [2024-11-28 02:08:30,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039699766] [2024-11-28 02:08:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039699766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877924839] [2024-11-28 02:08:30,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:30,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:30,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:30,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:30,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:08:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:30,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:08:30,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1204 proven. 114 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-28 02:08:32,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 84 proven. 117 refuted. 0 times theorem prover too weak. 2179 trivial. 0 not checked. [2024-11-28 02:08:33,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877924839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:33,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:08:33,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 12] total 26 [2024-11-28 02:08:33,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434002552] [2024-11-28 02:08:33,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:33,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 02:08:33,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:33,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 02:08:33,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2024-11-28 02:08:33,402 INFO L87 Difference]: Start difference. First operand 12511 states and 18782 transitions. Second operand has 26 states, 25 states have (on average 7.76) internal successors, (194), 24 states have internal predecessors, (194), 7 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 7 states have call predecessors, (105), 7 states have call successors, (105) [2024-11-28 02:08:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:51,132 INFO L93 Difference]: Finished difference Result 98970 states and 147092 transitions. [2024-11-28 02:08:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-11-28 02:08:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 24 states have internal predecessors, (194), 7 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 7 states have call predecessors, (105), 7 states have call successors, (105) Word has length 254 [2024-11-28 02:08:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:51,412 INFO L225 Difference]: With dead ends: 98970 [2024-11-28 02:08:51,412 INFO L226 Difference]: Without dead ends: 90956 [2024-11-28 02:08:51,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6711 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3752, Invalid=12760, Unknown=0, NotChecked=0, Total=16512 [2024-11-28 02:08:51,449 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 4222 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 3885 mSolverCounterSat, 1204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1204 IncrementalHoareTripleChecker+Valid, 3885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:51,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 4680 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1204 Valid, 3885 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:08:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90956 states. [2024-11-28 02:08:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90956 to 59418. [2024-11-28 02:08:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59418 states, 55598 states have (on average 1.518939530198928) internal successors, (84450), 55768 states have internal predecessors, (84450), 3345 states have call successors, (3345), 474 states have call predecessors, (3345), 474 states have return successors, (3345), 3175 states have call predecessors, (3345), 3345 states have call successors, (3345) [2024-11-28 02:08:55,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59418 states to 59418 states and 91140 transitions. [2024-11-28 02:08:55,643 INFO L78 Accepts]: Start accepts. Automaton has 59418 states and 91140 transitions. Word has length 254 [2024-11-28 02:08:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:55,644 INFO L471 AbstractCegarLoop]: Abstraction has 59418 states and 91140 transitions. [2024-11-28 02:08:55,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 24 states have internal predecessors, (194), 7 states have call successors, (105), 4 states have call predecessors, (105), 8 states have return successors, (105), 7 states have call predecessors, (105), 7 states have call successors, (105) [2024-11-28 02:08:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 59418 states and 91140 transitions. [2024-11-28 02:08:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-28 02:08:55,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:55,690 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:55,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:08:55,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:08:55,891 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:55,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 431047897, now seen corresponding path program 1 times [2024-11-28 02:08:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152791599] [2024-11-28 02:08:55,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-28 02:08:56,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152791599] [2024-11-28 02:08:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152791599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:56,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:56,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:08:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823328013] [2024-11-28 02:08:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:56,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:08:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:56,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:08:56,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:08:56,784 INFO L87 Difference]: Start difference. First operand 59418 states and 91140 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:09:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:02,696 INFO L93 Difference]: Finished difference Result 127909 states and 193806 transitions. [2024-11-28 02:09:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:09:02,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 255 [2024-11-28 02:09:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:02,906 INFO L225 Difference]: With dead ends: 127909 [2024-11-28 02:09:02,906 INFO L226 Difference]: Without dead ends: 86239 [2024-11-28 02:09:02,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:09:02,963 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 810 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:02,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2342 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:09:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86239 states. [2024-11-28 02:09:07,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86239 to 60699. [2024-11-28 02:09:07,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60699 states, 56879 states have (on average 1.5175020657887797) internal successors, (86314), 57049 states have internal predecessors, (86314), 3345 states have call successors, (3345), 474 states have call predecessors, (3345), 474 states have return successors, (3345), 3175 states have call predecessors, (3345), 3345 states have call successors, (3345) [2024-11-28 02:09:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60699 states to 60699 states and 93004 transitions. [2024-11-28 02:09:07,351 INFO L78 Accepts]: Start accepts. Automaton has 60699 states and 93004 transitions. Word has length 255 [2024-11-28 02:09:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:07,352 INFO L471 AbstractCegarLoop]: Abstraction has 60699 states and 93004 transitions. [2024-11-28 02:09:07,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-28 02:09:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 60699 states and 93004 transitions. [2024-11-28 02:09:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-28 02:09:07,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:07,385 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:07,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:09:07,386 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:07,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1505311580, now seen corresponding path program 1 times [2024-11-28 02:09:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:09:07,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740376836] [2024-11-28 02:09:07,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 39 proven. 63 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:09:08,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:09:08,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740376836] [2024-11-28 02:09:08,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740376836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:08,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857083635] [2024-11-28 02:09:08,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:08,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:08,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87c99a3-28c7-4ee3-b1d0-36a8d51529a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:09:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:08,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:09:08,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1152 proven. 63 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2024-11-28 02:09:09,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 39 proven. 63 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-28 02:09:09,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857083635] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:09:09,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:09:09,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 20 [2024-11-28 02:09:09,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119317124] [2024-11-28 02:09:09,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:09,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:09:09,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:09:09,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:09:09,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:09:09,538 INFO L87 Difference]: Start difference. First operand 60699 states and 93004 transitions. Second operand has 20 states, 19 states have (on average 8.263157894736842) internal successors, (157), 19 states have internal predecessors, (157), 7 states have call successors, (105), 3 states have call predecessors, (105), 6 states have return successors, (105), 7 states have call predecessors, (105), 7 states have call successors, (105) [2024-11-28 02:09:18,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:18,561 INFO L93 Difference]: Finished difference Result 182396 states and 279528 transitions. [2024-11-28 02:09:18,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:09:18,561 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.263157894736842) internal successors, (157), 19 states have internal predecessors, (157), 7 states have call successors, (105), 3 states have call predecessors, (105), 6 states have return successors, (105), 7 states have call predecessors, (105), 7 states have call successors, (105) Word has length 255 [2024-11-28 02:09:18,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:18,963 INFO L225 Difference]: With dead ends: 182396 [2024-11-28 02:09:18,964 INFO L226 Difference]: Without dead ends: 131359 [2024-11-28 02:09:19,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 02:09:19,016 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 1160 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:19,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 2652 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:09:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131359 states.