./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfef9e0cd5324afc9386a78468bea49ee605e5037c2d685b322567d67d524bb4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:08:41,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:08:41,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:08:41,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:08:41,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:08:41,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:08:41,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:08:41,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:08:41,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:08:41,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:08:41,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:08:41,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:08:41,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:08:41,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:08:41,965 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:08:41,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:08:41,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:08:41,966 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:08:41,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:08:41,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:08:41,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:08:41,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:08:41,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:08:41,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:08:41,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:08:41,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:08:41,968 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:08:41,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:08:41,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:08:41,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:41,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:41,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:41,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:41,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:08:41,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:08:41,970 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_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfef9e0cd5324afc9386a78468bea49ee605e5037c2d685b322567d67d524bb4 [2024-11-24 00:08:42,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:08:42,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:08:42,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:08:42,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:08:42,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:08:42,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i [2024-11-24 00:08:45,661 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/data/a8751e083/c9a91dc0d652457da4a0e0a387a1d09d/FLAGbcb990394 [2024-11-24 00:08:45,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:08:45,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i [2024-11-24 00:08:45,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/data/a8751e083/c9a91dc0d652457da4a0e0a387a1d09d/FLAGbcb990394 [2024-11-24 00:08:45,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/data/a8751e083/c9a91dc0d652457da4a0e0a387a1d09d [2024-11-24 00:08:46,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:08:46,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:08:46,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:46,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:08:46,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:08:46,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:45" (1/1) ... [2024-11-24 00:08:46,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46, skipping insertion in model container [2024-11-24 00:08:46,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:45" (1/1) ... [2024-11-24 00:08:46,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:08:46,213 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_1f209a3a-1818-4986-9190-cfcae8d0e29d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i[915,928] [2024-11-24 00:08:46,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:46,302 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:08:46,316 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_1f209a3a-1818-4986-9190-cfcae8d0e29d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i[915,928] [2024-11-24 00:08:46,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:46,375 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:08:46,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46 WrapperNode [2024-11-24 00:08:46,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:46,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:46,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:08:46,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:08:46,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,438 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-24 00:08:46,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:46,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:08:46,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:08:46,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:08:46,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,492 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:08:46,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:08:46,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:08:46,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:08:46,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:08:46,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (1/1) ... [2024-11-24 00:08:46,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:46,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:46,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:08:46,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:08:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:08:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:08:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:08:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:08:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:08:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:08:46,657 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:08:46,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:08:46,963 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-24 00:08:46,963 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:08:46,978 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:08:46,979 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:08:46,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:46 BoogieIcfgContainer [2024-11-24 00:08:46,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:08:46,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:08:46,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:08:46,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:08:46,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:08:45" (1/3) ... [2024-11-24 00:08:46,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7077eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:46, skipping insertion in model container [2024-11-24 00:08:46,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:46" (2/3) ... [2024-11-24 00:08:46,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7077eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:46, skipping insertion in model container [2024-11-24 00:08:46,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:46" (3/3) ... [2024-11-24 00:08:46,991 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-86.i [2024-11-24 00:08:47,009 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:08:47,011 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-86.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:08:47,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:08:47,115 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;@4795ebb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:08:47,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:08:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:08:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:08:47,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:47,133 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:47,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:47,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:47,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1174992419, now seen corresponding path program 1 times [2024-11-24 00:08:47,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:47,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786737409] [2024-11-24 00:08:47,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:47,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 00:08:47,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:47,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786737409] [2024-11-24 00:08:47,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786737409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:08:47,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948278477] [2024-11-24 00:08:47,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:47,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:47,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:47,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:08:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:47,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:08:47,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 00:08:47,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948278477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:08:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:08:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126252303] [2024-11-24 00:08:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:47,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:08:47,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:47,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:08:47,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:47,772 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:08:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:47,810 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-11-24 00:08:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:08:47,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-24 00:08:47,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:47,820 INFO L225 Difference]: With dead ends: 95 [2024-11-24 00:08:47,821 INFO L226 Difference]: Without dead ends: 47 [2024-11-24 00:08:47,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:47,830 INFO L435 NwaCegarLoop]: 68 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, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:47,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-24 00:08:47,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-24 00:08:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:08:47,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-24 00:08:47,890 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 108 [2024-11-24 00:08:47,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:47,892 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-24 00:08:47,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:08:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-24 00:08:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:08:47,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:47,897 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:47,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:08:48,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:08:48,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:48,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash 510743009, now seen corresponding path program 1 times [2024-11-24 00:08:48,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:48,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843674986] [2024-11-24 00:08:48,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:48,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:08:52,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:52,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843674986] [2024-11-24 00:08:52,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843674986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:52,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:52,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:08:52,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270759583] [2024-11-24 00:08:52,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:52,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:08:52,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:52,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:08:52,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:08:52,182 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:08:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:52,656 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2024-11-24 00:08:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:08:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-24 00:08:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:52,659 INFO L225 Difference]: With dead ends: 67 [2024-11-24 00:08:52,659 INFO L226 Difference]: Without dead ends: 65 [2024-11-24 00:08:52,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:08:52,661 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 29 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:52,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 204 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:08:52,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-24 00:08:52,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2024-11-24 00:08:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:08:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2024-11-24 00:08:52,681 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 108 [2024-11-24 00:08:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:52,684 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2024-11-24 00:08:52,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:08:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2024-11-24 00:08:52,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:08:52,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:52,688 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:52,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:08:52,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:52,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:52,690 INFO L85 PathProgramCache]: Analyzing trace with hash 512590051, now seen corresponding path program 1 times [2024-11-24 00:08:52,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:52,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770438701] [2024-11-24 00:08:52,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:52,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:08:53,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770438701] [2024-11-24 00:08:53,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770438701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:53,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:53,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111140506] [2024-11-24 00:08:53,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:53,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:08:53,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:53,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:08:53,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:53,948 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:08:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:54,246 INFO L93 Difference]: Finished difference Result 195 states and 282 transitions. [2024-11-24 00:08:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:08:54,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-24 00:08:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:54,249 INFO L225 Difference]: With dead ends: 195 [2024-11-24 00:08:54,250 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 00:08:54,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:54,254 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 84 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:54,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 218 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:08:54,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 00:08:54,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2024-11-24 00:08:54,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 89 states have internal predecessors, (109), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:08:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 199 transitions. [2024-11-24 00:08:54,303 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 199 transitions. Word has length 108 [2024-11-24 00:08:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:54,306 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 199 transitions. [2024-11-24 00:08:54,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:08:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 199 transitions. [2024-11-24 00:08:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:08:54,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:54,311 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:54,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:08:54,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:54,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:54,312 INFO L85 PathProgramCache]: Analyzing trace with hash 569848353, now seen corresponding path program 1 times [2024-11-24 00:08:54,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:54,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949135131] [2024-11-24 00:08:54,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:54,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:08:58,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:58,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949135131] [2024-11-24 00:08:58,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949135131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:58,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:58,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:08:58,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606218427] [2024-11-24 00:08:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:58,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:08:58,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:58,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:08:58,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:08:58,737 INFO L87 Difference]: Start difference. First operand 137 states and 199 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:08:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:59,541 INFO L93 Difference]: Finished difference Result 188 states and 258 transitions. [2024-11-24 00:08:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:08:59,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-24 00:08:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:59,546 INFO L225 Difference]: With dead ends: 188 [2024-11-24 00:08:59,547 INFO L226 Difference]: Without dead ends: 186 [2024-11-24 00:08:59,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:08:59,550 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 27 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:59,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 273 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:08:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-24 00:08:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 144. [2024-11-24 00:08:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 95 states have (on average 1.263157894736842) internal successors, (120), 96 states have internal predecessors, (120), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:08:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2024-11-24 00:08:59,594 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 108 [2024-11-24 00:08:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:59,595 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2024-11-24 00:08:59,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:08:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2024-11-24 00:08:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:08:59,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:59,598 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:59,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:08:59,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:59,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:59,599 INFO L85 PathProgramCache]: Analyzing trace with hash 174974301, now seen corresponding path program 1 times [2024-11-24 00:08:59,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:59,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557105402] [2024-11-24 00:08:59,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:59,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:09:02,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:02,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557105402] [2024-11-24 00:09:02,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557105402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:02,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:02,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:09:02,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065948877] [2024-11-24 00:09:02,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:02,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:09:02,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:02,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:09:02,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:09:02,331 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:03,043 INFO L93 Difference]: Finished difference Result 186 states and 258 transitions. [2024-11-24 00:09:03,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:09:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-24 00:09:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:03,048 INFO L225 Difference]: With dead ends: 186 [2024-11-24 00:09:03,048 INFO L226 Difference]: Without dead ends: 184 [2024-11-24 00:09:03,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:09:03,052 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:03,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 257 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:09:03,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-24 00:09:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 139. [2024-11-24 00:09:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 91 states have internal predecessors, (112), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:09:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2024-11-24 00:09:03,106 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 108 [2024-11-24 00:09:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:03,110 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2024-11-24 00:09:03,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2024-11-24 00:09:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:09:03,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:03,113 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:03,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:09:03,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:03,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash 176821343, now seen corresponding path program 1 times [2024-11-24 00:09:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:03,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552944963] [2024-11-24 00:09:03,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:03,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:09:03,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:03,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552944963] [2024-11-24 00:09:03,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552944963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:03,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:03,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:09:03,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098649328] [2024-11-24 00:09:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:03,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:09:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:03,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:09:03,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:03,322 INFO L87 Difference]: Start difference. First operand 139 states and 202 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:03,363 INFO L93 Difference]: Finished difference Result 317 states and 463 transitions. [2024-11-24 00:09:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:09:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-24 00:09:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:03,366 INFO L225 Difference]: With dead ends: 317 [2024-11-24 00:09:03,366 INFO L226 Difference]: Without dead ends: 181 [2024-11-24 00:09:03,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:03,368 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 27 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:03,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 135 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:09:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-24 00:09:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-24 00:09:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 115 states have internal predecessors, (138), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:09:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 262 transitions. [2024-11-24 00:09:03,406 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 262 transitions. Word has length 108 [2024-11-24 00:09:03,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:03,406 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 262 transitions. [2024-11-24 00:09:03,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 262 transitions. [2024-11-24 00:09:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:09:03,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:03,412 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:03,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:09:03,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:03,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1924915025, now seen corresponding path program 1 times [2024-11-24 00:09:03,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:03,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512472062] [2024-11-24 00:09:03,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:03,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:09:03,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:03,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512472062] [2024-11-24 00:09:03,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512472062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:03,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:09:03,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146619301] [2024-11-24 00:09:03,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:03,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:09:03,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:03,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:09:03,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:03,487 INFO L87 Difference]: Start difference. First operand 181 states and 262 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:03,561 INFO L93 Difference]: Finished difference Result 427 states and 623 transitions. [2024-11-24 00:09:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:09:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:09:03,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:03,569 INFO L225 Difference]: With dead ends: 427 [2024-11-24 00:09:03,572 INFO L226 Difference]: Without dead ends: 291 [2024-11-24 00:09:03,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:03,576 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 58 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:03,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 184 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:09:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-24 00:09:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 286. [2024-11-24 00:09:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 171 states have (on average 1.152046783625731) internal successors, (197), 173 states have internal predecessors, (197), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 00:09:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2024-11-24 00:09:03,660 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 109 [2024-11-24 00:09:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:03,662 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2024-11-24 00:09:03,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2024-11-24 00:09:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:09:03,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:03,664 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:03,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:09:03,666 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:03,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1923067983, now seen corresponding path program 1 times [2024-11-24 00:09:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002398824] [2024-11-24 00:09:03,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:09:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002398824] [2024-11-24 00:09:04,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002398824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:04,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:04,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:09:04,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411806022] [2024-11-24 00:09:04,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:04,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:09:04,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:04,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:09:04,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:09:04,912 INFO L87 Difference]: Start difference. First operand 286 states and 411 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:05,119 INFO L93 Difference]: Finished difference Result 465 states and 662 transitions. [2024-11-24 00:09:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:09:05,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:09:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:05,123 INFO L225 Difference]: With dead ends: 465 [2024-11-24 00:09:05,123 INFO L226 Difference]: Without dead ends: 315 [2024-11-24 00:09:05,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:09:05,125 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:05,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 277 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:09:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-24 00:09:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 288. [2024-11-24 00:09:05,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 173 states have (on average 1.1502890173410405) internal successors, (199), 175 states have internal predecessors, (199), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 00:09:05,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 413 transitions. [2024-11-24 00:09:05,195 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 413 transitions. Word has length 109 [2024-11-24 00:09:05,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:05,196 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 413 transitions. [2024-11-24 00:09:05,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 413 transitions. [2024-11-24 00:09:05,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:09:05,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:05,198 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:05,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:09:05,199 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:05,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:05,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1865809681, now seen corresponding path program 1 times [2024-11-24 00:09:05,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:05,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010788654] [2024-11-24 00:09:05,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:05,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:09:08,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:08,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010788654] [2024-11-24 00:09:08,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010788654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:08,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:08,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:09:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144055663] [2024-11-24 00:09:08,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:08,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:09:08,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:08,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:09:08,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:09:08,632 INFO L87 Difference]: Start difference. First operand 288 states and 413 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:09,356 INFO L93 Difference]: Finished difference Result 319 states and 447 transitions. [2024-11-24 00:09:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:09:09,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:09:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:09,363 INFO L225 Difference]: With dead ends: 319 [2024-11-24 00:09:09,365 INFO L226 Difference]: Without dead ends: 317 [2024-11-24 00:09:09,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:09:09,367 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 16 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:09,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 308 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:09:09,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-24 00:09:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 287. [2024-11-24 00:09:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 172 states have (on average 1.1511627906976745) internal successors, (198), 174 states have internal predecessors, (198), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 00:09:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 412 transitions. [2024-11-24 00:09:09,440 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 412 transitions. Word has length 109 [2024-11-24 00:09:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:09,440 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 412 transitions. [2024-11-24 00:09:09,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 412 transitions. [2024-11-24 00:09:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-24 00:09:09,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:09,445 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:09,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:09:09,445 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:09,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 331303968, now seen corresponding path program 1 times [2024-11-24 00:09:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938253477] [2024-11-24 00:09:09,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:09,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-24 00:09:09,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:09,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938253477] [2024-11-24 00:09:09,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938253477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:09,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:09,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:09:09,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460527144] [2024-11-24 00:09:09,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:09,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:09:09,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:09,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:09:09,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:09,588 INFO L87 Difference]: Start difference. First operand 287 states and 412 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-24 00:09:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:09,651 INFO L93 Difference]: Finished difference Result 535 states and 769 transitions. [2024-11-24 00:09:09,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:09:09,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2024-11-24 00:09:09,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:09,656 INFO L225 Difference]: With dead ends: 535 [2024-11-24 00:09:09,656 INFO L226 Difference]: Without dead ends: 293 [2024-11-24 00:09:09,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:09:09,658 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 24 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:09,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:09:09,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-24 00:09:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 247. [2024-11-24 00:09:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 150 states have (on average 1.1266666666666667) internal successors, (169), 152 states have internal predecessors, (169), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 00:09:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 349 transitions. [2024-11-24 00:09:09,714 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 349 transitions. Word has length 213 [2024-11-24 00:09:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:09,718 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 349 transitions. [2024-11-24 00:09:09,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-24 00:09:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 349 transitions. [2024-11-24 00:09:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-24 00:09:09,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:09,725 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:09,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:09:09,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:09,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:09,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1800046754, now seen corresponding path program 1 times [2024-11-24 00:09:09,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:09,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637527141] [2024-11-24 00:09:09,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2271 trivial. 0 not checked. [2024-11-24 00:09:13,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:13,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637527141] [2024-11-24 00:09:13,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637527141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:13,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:13,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:09:13,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173693631] [2024-11-24 00:09:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:13,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:09:13,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:13,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:09:13,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:09:13,435 INFO L87 Difference]: Start difference. First operand 247 states and 349 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:14,205 INFO L93 Difference]: Finished difference Result 289 states and 394 transitions. [2024-11-24 00:09:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:09:14,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 213 [2024-11-24 00:09:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:14,210 INFO L225 Difference]: With dead ends: 289 [2024-11-24 00:09:14,210 INFO L226 Difference]: Without dead ends: 287 [2024-11-24 00:09:14,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:09:14,212 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 32 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:14,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 257 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:09:14,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-24 00:09:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 250. [2024-11-24 00:09:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 153 states have (on average 1.1241830065359477) internal successors, (172), 155 states have internal predecessors, (172), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 00:09:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 352 transitions. [2024-11-24 00:09:14,255 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 352 transitions. Word has length 213 [2024-11-24 00:09:14,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:14,256 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 352 transitions. [2024-11-24 00:09:14,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:14,257 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 352 transitions. [2024-11-24 00:09:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:09:14,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:14,260 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:14,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:09:14,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:14,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:14,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1919595028, now seen corresponding path program 1 times [2024-11-24 00:09:14,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:14,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993388336] [2024-11-24 00:09:14,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:14,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:17,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-24 00:09:17,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993388336] [2024-11-24 00:09:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993388336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093319323] [2024-11-24 00:09:17,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:17,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:09:17,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:09:17,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:09:17,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:09:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:17,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 00:09:17,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 760 proven. 87 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-24 00:09:21,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2024-11-24 00:09:30,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093319323] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:30,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:09:30,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 13] total 27 [2024-11-24 00:09:30,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634682575] [2024-11-24 00:09:30,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:30,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:09:30,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:09:30,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:09:30,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:09:30,655 INFO L87 Difference]: Start difference. First operand 250 states and 352 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:31,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:31,039 INFO L93 Difference]: Finished difference Result 288 states and 393 transitions. [2024-11-24 00:09:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:09:31,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 214 [2024-11-24 00:09:31,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:31,042 INFO L225 Difference]: With dead ends: 288 [2024-11-24 00:09:31,042 INFO L226 Difference]: Without dead ends: 286 [2024-11-24 00:09:31,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:09:31,044 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 40 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:31,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 289 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:09:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-24 00:09:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 285. [2024-11-24 00:09:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 174 states have (on average 1.103448275862069) internal successors, (192), 177 states have internal predecessors, (192), 99 states have call successors, (99), 11 states have call predecessors, (99), 11 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:09:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions. [2024-11-24 00:09:31,089 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 214 [2024-11-24 00:09:31,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:31,089 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 390 transitions. [2024-11-24 00:09:31,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:09:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions. [2024-11-24 00:09:31,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 00:09:31,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:31,093 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:31,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:09:31,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 00:09:31,298 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:31,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1976853330, now seen corresponding path program 1 times [2024-11-24 00:09:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:09:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579514433] [2024-11-24 00:09:31,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:09:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-24 00:09:34,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:09:34,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579514433] [2024-11-24 00:09:34,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579514433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:34,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168592971] [2024-11-24 00:09:34,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:34,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:09:34,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:09:34,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:09:34,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:09:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:34,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-24 00:09:34,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 1077 proven. 876 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-24 00:10:40,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 295 proven. 119 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2024-11-24 00:11:28,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168592971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:28,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:28,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 31, 24] total 61 [2024-11-24 00:11:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281627180] [2024-11-24 00:11:28,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:28,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-24 00:11:28,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:28,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-24 00:11:28,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2024-11-24 00:11:28,088 INFO L87 Difference]: Start difference. First operand 285 states and 390 transitions. Second operand has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) [2024-11-24 00:11:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:37,469 INFO L93 Difference]: Finished difference Result 693 states and 904 transitions. [2024-11-24 00:11:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-24 00:11:37,471 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) Word has length 214 [2024-11-24 00:11:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:37,472 INFO L225 Difference]: With dead ends: 693 [2024-11-24 00:11:37,473 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:11:37,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5519 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3377, Invalid=15529, Unknown=0, NotChecked=0, Total=18906 [2024-11-24 00:11:37,480 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 649 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 3843 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 3843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:37,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1258 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 3843 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 00:11:37,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:11:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:11:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:11:37,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:11:37,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2024-11-24 00:11:37,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:37,482 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:11:37,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) [2024-11-24 00:11:37,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:11:37,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:11:37,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:11:37,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:11:37,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 00:11:37,689 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:37,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:11:44,479 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:11:44,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:11:44 BoogieIcfgContainer [2024-11-24 00:11:44,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:11:44,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:11:44,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:11:44,520 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:11:44,521 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:46" (3/4) ... [2024-11-24 00:11:44,528 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:11:44,535 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 00:11:44,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 00:11:44,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 00:11:44,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:11:44,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:11:44,674 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:11:44,675 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:11:44,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:11:44,676 INFO L158 Benchmark]: Toolchain (without parser) took 178673.65ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 92.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2024-11-24 00:11:44,676 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:44,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.86ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 79.8MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:11:44,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.29ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:44,677 INFO L158 Benchmark]: Boogie Preprocessor took 73.00ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 72.1MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:44,678 INFO L158 Benchmark]: RCFGBuilder took 463.06ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 54.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:11:44,678 INFO L158 Benchmark]: TraceAbstraction took 177537.03ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 53.8MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 741.2MB. Max. memory is 16.1GB. [2024-11-24 00:11:44,679 INFO L158 Benchmark]: Witness Printer took 154.84ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:44,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.86ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 79.8MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.29ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 73.00ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 72.1MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.06ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 54.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 177537.03ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 53.8MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 741.2MB. Max. memory is 16.1GB. * Witness Printer took 154.84ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 170.6s, OverallIterations: 13, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1032 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1018 mSDsluCounter, 3860 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2919 mSDsCounter, 912 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4847 IncrementalHoareTripleChecker+Invalid, 5759 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 912 mSolverCounterUnsat, 941 mSDtfsCounter, 4847 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1165 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5762 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=8, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 247 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 153.4s InterpolantComputationTime, 2365 NumberOfCodeBlocks, 2365 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2775 ConstructedInterpolants, 0 QuantifiedInterpolants, 11925 SizeOfPredicates, 65 NumberOfNonLiveVariables, 1133 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 22562/23680 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: ((((((((((var_1_18 == 1) && (var_1_7 == 4)) && (var_1_13 <= ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)))) && (var_1_16 == 0)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13)) || (((((var_1_18 == 1) && (var_1_16 == 1)) && (var_1_9 <= 2147483647)) && (var_1_11 <= 254)) && (2147483647 <= var_1_13))) || (((((var_1_7 == 4) && (var_1_16 == 0)) && (var_1_18 == var_1_16)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13))) || (((((((((var_1_18 == 1) && (var_1_7 == var_1_11)) && (var_1_7 == var_1_1)) && (0 <= 0)) && ((((((long long) var_1_8 + 1) <= 0) && ((((((long long) var_1_9 + 1) == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)) && ((var_1_3 + 1) <= 0)) && (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) != 0)) || (var_1_9 == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)))) || (((0 < (var_1_3 + 1)) || (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) == 0)) && (var_1_9 == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)))) || ((((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10) < var_1_9))) && (var_1_16 == 1)) && ((((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)) + 1) <= var_1_13)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13))) || ((((((((((var_1_18 == 1) && (var_1_9 <= (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10))) && (var_1_7 == 4)) && (var_1_16 == 1)) && ((var_1_9 < (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)) || (((var_1_3 + 1) <= 0) && (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) != 0)))) && ((((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)) + 1) <= var_1_13)) && (var_1_1 == 4)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13)) && ((((0 < (var_1_3 + 1)) || (0 < ((long long) var_1_8 + 1))) || (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) == 0)) || (((long long) var_1_9 + 1) < (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10))))) RESULT: Ultimate proved your program to be correct! [2024-11-24 00:11:44,893 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-24 00:11:44,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f209a3a-1818-4986-9190-cfcae8d0e29d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE