./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1 --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 6d1c02b3372a206bee55669628072c3bed3eaa07fdec8b30d7cf878b8d085487 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:36:21,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:36:21,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:36:21,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:36:21,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:36:21,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:36:21,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:36:21,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:36:21,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:36:21,960 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:36:21,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:36:21,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:36:21,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:36:21,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:36:21,960 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:36:21,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:36:21,961 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:36:21,962 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:36:21,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:36:21,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:36:21,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:36:21,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:36:21,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:36:21,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:36:21,964 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:36:21,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:36:21,964 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_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6d1c02b3372a206bee55669628072c3bed3eaa07fdec8b30d7cf878b8d085487 [2024-12-02 11:36:22,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:36:22,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:36:22,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:36:22,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:36:22,186 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:36:22,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i [2024-12-02 11:36:24,859 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/data/f90f64afd/560f7a555ad341aba2dec8429e60741c/FLAG44b73fca8 [2024-12-02 11:36:25,058 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:36:25,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i [2024-12-02 11:36:25,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/data/f90f64afd/560f7a555ad341aba2dec8429e60741c/FLAG44b73fca8 [2024-12-02 11:36:25,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/data/f90f64afd/560f7a555ad341aba2dec8429e60741c [2024-12-02 11:36:25,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:36:25,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:36:25,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:36:25,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:36:25,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:36:25,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bce9767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25, skipping insertion in model container [2024-12-02 11:36:25,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:36:25,217 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_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i[915,928] [2024-12-02 11:36:25,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:36:25,281 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:36:25,289 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_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-81.i[915,928] [2024-12-02 11:36:25,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:36:25,329 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:36:25,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25 WrapperNode [2024-12-02 11:36:25,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:36:25,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:36:25,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:36:25,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:36:25,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,378 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2024-12-02 11:36:25,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:36:25,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:36:25,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:36:25,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:36:25,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,407 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]. [2024-12-02 11:36:25,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,416 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:36:25,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:36:25,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:36:25,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:36:25,432 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (1/1) ... [2024-12-02 11:36:25,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:36:25,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:36:25,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:36:25,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:36:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:36:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:36:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:36:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:36:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:36:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:36:25,539 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:36:25,541 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:36:25,858 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:36:25,858 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:36:25,868 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:36:25,868 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:36:25,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:36:25 BoogieIcfgContainer [2024-12-02 11:36:25,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:36:25,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:36:25,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:36:25,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:36:25,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:36:25" (1/3) ... [2024-12-02 11:36:25,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23add273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:36:25, skipping insertion in model container [2024-12-02 11:36:25,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:36:25" (2/3) ... [2024-12-02 11:36:25,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23add273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:36:25, skipping insertion in model container [2024-12-02 11:36:25,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:36:25" (3/3) ... [2024-12-02 11:36:25,878 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-81.i [2024-12-02 11:36:25,893 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:36:25,894 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount50_file-81.i that has 2 procedures, 77 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:36:25,948 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:36:25,959 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;@4ea30efd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:36:25,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:36:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 11:36:25,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:25,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:25,975 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:25,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:25,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash 409085708, now seen corresponding path program 1 times [2024-12-02 11:36:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096792297] [2024-12-02 11:36:25,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-12-02 11:36:26,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096792297] [2024-12-02 11:36:26,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096792297] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:36:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867866100] [2024-12-02 11:36:26,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:26,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:36:26,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:36:26,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:36:26,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:36:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:26,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:36:26,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:36:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-12-02 11:36:26,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:36:26,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867866100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:26,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:36:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:36:26,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138751166] [2024-12-02 11:36:26,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:26,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:36:26,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:26,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:36:26,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:36:26,478 INFO L87 Difference]: Start difference. First operand has 77 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:36:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:26,508 INFO L93 Difference]: Finished difference Result 147 states and 256 transitions. [2024-12-02 11:36:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:36:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2024-12-02 11:36:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:26,518 INFO L225 Difference]: With dead ends: 147 [2024-12-02 11:36:26,518 INFO L226 Difference]: Without dead ends: 73 [2024-12-02 11:36:26,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:36:26,525 INFO L435 NwaCegarLoop]: 111 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, 111 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 [2024-12-02 11:36:26,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:36:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-12-02 11:36:26,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-12-02 11:36:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 45 states have internal predecessors, (59), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 11:36:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2024-12-02 11:36:26,568 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 163 [2024-12-02 11:36:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:26,569 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2024-12-02 11:36:26,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:36:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2024-12-02 11:36:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:26,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:26,573 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:26,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:36:26,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:36:26,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:26,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:26,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1193130060, now seen corresponding path program 1 times [2024-12-02 11:36:26,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:26,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163325938] [2024-12-02 11:36:26,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:26,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:36:38,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:38,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163325938] [2024-12-02 11:36:38,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163325938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:38,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:38,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:36:38,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805242991] [2024-12-02 11:36:38,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:38,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:36:38,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:38,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:36:38,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:36:38,318 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:41,539 INFO L93 Difference]: Finished difference Result 321 states and 480 transitions. [2024-12-02 11:36:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:36:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:36:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:41,542 INFO L225 Difference]: With dead ends: 321 [2024-12-02 11:36:41,542 INFO L226 Difference]: Without dead ends: 251 [2024-12-02 11:36:41,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:36:41,543 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 679 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:41,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 514 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:36:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-12-02 11:36:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 132. [2024-12-02 11:36:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 77 states have internal predecessors, (99), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:36:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 203 transitions. [2024-12-02 11:36:41,567 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 203 transitions. Word has length 163 [2024-12-02 11:36:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:41,568 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 203 transitions. [2024-12-02 11:36:41,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:41,568 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 203 transitions. [2024-12-02 11:36:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:41,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:41,571 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:41,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:36:41,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:41,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash 800103050, now seen corresponding path program 1 times [2024-12-02 11:36:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:41,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682503915] [2024-12-02 11:36:41,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:41,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:36:41,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:41,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682503915] [2024-12-02 11:36:41,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682503915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:41,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:41,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:36:41,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470635709] [2024-12-02 11:36:41,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:41,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:36:41,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:41,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:36:41,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:36:41,825 INFO L87 Difference]: Start difference. First operand 132 states and 203 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:41,901 INFO L93 Difference]: Finished difference Result 237 states and 360 transitions. [2024-12-02 11:36:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:36:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:36:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:41,904 INFO L225 Difference]: With dead ends: 237 [2024-12-02 11:36:41,904 INFO L226 Difference]: Without dead ends: 167 [2024-12-02 11:36:41,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:36:41,905 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 42 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:41,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 324 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:36:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-12-02 11:36:41,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2024-12-02 11:36:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 105 states have internal predecessors, (135), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 11:36:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 247 transitions. [2024-12-02 11:36:41,932 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 247 transitions. Word has length 163 [2024-12-02 11:36:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:41,933 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 247 transitions. [2024-12-02 11:36:41,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 247 transitions. [2024-12-02 11:36:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:41,935 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:41,936 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:41,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:36:41,936 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:41,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:41,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1894194638, now seen corresponding path program 1 times [2024-12-02 11:36:41,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:41,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854604400] [2024-12-02 11:36:41,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:36:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:49,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854604400] [2024-12-02 11:36:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854604400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:49,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:36:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242080782] [2024-12-02 11:36:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:36:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:49,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:36:49,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:36:49,550 INFO L87 Difference]: Start difference. First operand 164 states and 247 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:52,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:52,690 INFO L93 Difference]: Finished difference Result 372 states and 546 transitions. [2024-12-02 11:36:52,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:36:52,691 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:36:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:52,694 INFO L225 Difference]: With dead ends: 372 [2024-12-02 11:36:52,694 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 11:36:52,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:36:52,696 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 418 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:52,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 521 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 11:36:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 11:36:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 164. [2024-12-02 11:36:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 105 states have internal predecessors, (135), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 11:36:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 247 transitions. [2024-12-02 11:36:52,719 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 247 transitions. Word has length 163 [2024-12-02 11:36:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:52,719 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 247 transitions. [2024-12-02 11:36:52,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 247 transitions. [2024-12-02 11:36:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:52,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:52,722 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:52,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:36:52,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:52,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:52,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1451295498, now seen corresponding path program 1 times [2024-12-02 11:36:52,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:52,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871155917] [2024-12-02 11:36:52,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:36:53,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871155917] [2024-12-02 11:36:53,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871155917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:53,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:53,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:36:53,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065595049] [2024-12-02 11:36:53,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:53,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:36:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:53,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:36:53,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:36:53,193 INFO L87 Difference]: Start difference. First operand 164 states and 247 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:53,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:53,599 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2024-12-02 11:36:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:36:53,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:36:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:53,602 INFO L225 Difference]: With dead ends: 312 [2024-12-02 11:36:53,602 INFO L226 Difference]: Without dead ends: 210 [2024-12-02 11:36:53,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:36:53,603 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 136 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:53,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 391 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:36:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-12-02 11:36:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 170. [2024-12-02 11:36:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 110 states have (on average 1.290909090909091) internal successors, (142), 111 states have internal predecessors, (142), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 11:36:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 254 transitions. [2024-12-02 11:36:53,621 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 254 transitions. Word has length 163 [2024-12-02 11:36:53,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:53,621 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 254 transitions. [2024-12-02 11:36:53,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:36:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 254 transitions. [2024-12-02 11:36:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:36:53,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:53,624 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:53,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:36:53,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:53,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:53,625 INFO L85 PathProgramCache]: Analyzing trace with hash 182012810, now seen corresponding path program 1 times [2024-12-02 11:36:53,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:53,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354785035] [2024-12-02 11:36:53,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:53,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:01,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:01,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354785035] [2024-12-02 11:37:01,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354785035] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:01,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:01,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:37:01,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898855926] [2024-12-02 11:37:01,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:01,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:37:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:01,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:37:01,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:37:01,074 INFO L87 Difference]: Start difference. First operand 170 states and 254 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:02,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:02,651 INFO L93 Difference]: Finished difference Result 341 states and 498 transitions. [2024-12-02 11:37:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:37:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:37:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:02,653 INFO L225 Difference]: With dead ends: 341 [2024-12-02 11:37:02,653 INFO L226 Difference]: Without dead ends: 239 [2024-12-02 11:37:02,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:37:02,654 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 164 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:02,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 515 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:37:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-12-02 11:37:02,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 171. [2024-12-02 11:37:02,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 112 states have internal predecessors, (144), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 11:37:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2024-12-02 11:37:02,671 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 163 [2024-12-02 11:37:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:02,671 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2024-12-02 11:37:02,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2024-12-02 11:37:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:37:02,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:02,673 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:02,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:37:02,674 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:02,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash 883077388, now seen corresponding path program 1 times [2024-12-02 11:37:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:02,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3845176] [2024-12-02 11:37:02,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:10,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:10,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3845176] [2024-12-02 11:37:10,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3845176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:10,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:10,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:37:10,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570653635] [2024-12-02 11:37:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:10,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:37:10,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:10,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:37:10,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:37:10,127 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:11,835 INFO L93 Difference]: Finished difference Result 322 states and 474 transitions. [2024-12-02 11:37:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:37:11,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-12-02 11:37:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:11,837 INFO L225 Difference]: With dead ends: 322 [2024-12-02 11:37:11,837 INFO L226 Difference]: Without dead ends: 210 [2024-12-02 11:37:11,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:37:11,838 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 177 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:11,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 399 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:37:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-12-02 11:37:11,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 168. [2024-12-02 11:37:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 109 states have internal predecessors, (140), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 11:37:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 252 transitions. [2024-12-02 11:37:11,852 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 252 transitions. Word has length 163 [2024-12-02 11:37:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:11,852 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 252 transitions. [2024-12-02 11:37:11,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 252 transitions. [2024-12-02 11:37:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:11,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:11,854 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:11,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:37:11,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:11,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:11,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1839498733, now seen corresponding path program 1 times [2024-12-02 11:37:11,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:11,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49343395] [2024-12-02 11:37:11,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:11,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:11,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:11,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49343395] [2024-12-02 11:37:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49343395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:11,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:11,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:37:11,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838042394] [2024-12-02 11:37:11,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:11,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:37:11,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:11,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:37:11,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:37:11,986 INFO L87 Difference]: Start difference. First operand 168 states and 252 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:12,054 INFO L93 Difference]: Finished difference Result 306 states and 450 transitions. [2024-12-02 11:37:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:37:12,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:37:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:12,059 INFO L225 Difference]: With dead ends: 306 [2024-12-02 11:37:12,059 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 11:37:12,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:37:12,060 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 62 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:12,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 317 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:37:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 11:37:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 163. [2024-12-02 11:37:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 241 transitions. [2024-12-02 11:37:12,092 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 241 transitions. Word has length 164 [2024-12-02 11:37:12,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:12,092 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 241 transitions. [2024-12-02 11:37:12,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:12,093 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2024-12-02 11:37:12,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:12,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:12,094 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:12,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:37:12,094 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:12,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2062441553, now seen corresponding path program 1 times [2024-12-02 11:37:12,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:12,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347010880] [2024-12-02 11:37:12,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:12,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347010880] [2024-12-02 11:37:18,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347010880] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:18,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:18,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:37:18,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667016342] [2024-12-02 11:37:18,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:18,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:37:18,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:18,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:37:18,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:37:18,866 INFO L87 Difference]: Start difference. First operand 163 states and 241 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:20,883 INFO L93 Difference]: Finished difference Result 341 states and 496 transitions. [2024-12-02 11:37:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:37:20,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:37:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:20,885 INFO L225 Difference]: With dead ends: 341 [2024-12-02 11:37:20,885 INFO L226 Difference]: Without dead ends: 241 [2024-12-02 11:37:20,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:37:20,886 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 237 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:20,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 478 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:37:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-12-02 11:37:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 171. [2024-12-02 11:37:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 253 transitions. [2024-12-02 11:37:20,898 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 253 transitions. Word has length 164 [2024-12-02 11:37:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:20,899 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 253 transitions. [2024-12-02 11:37:20,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 253 transitions. [2024-12-02 11:37:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:20,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:20,900 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:20,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:37:20,900 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:20,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1531461165, now seen corresponding path program 1 times [2024-12-02 11:37:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:20,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504190081] [2024-12-02 11:37:20,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:20,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:26,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:26,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504190081] [2024-12-02 11:37:26,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504190081] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:26,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:26,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:37:26,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298589668] [2024-12-02 11:37:26,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:26,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:37:26,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:26,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:37:26,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:37:26,945 INFO L87 Difference]: Start difference. First operand 171 states and 253 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:28,714 INFO L93 Difference]: Finished difference Result 362 states and 524 transitions. [2024-12-02 11:37:28,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:37:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-12-02 11:37:28,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:28,717 INFO L225 Difference]: With dead ends: 362 [2024-12-02 11:37:28,717 INFO L226 Difference]: Without dead ends: 262 [2024-12-02 11:37:28,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:37:28,718 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 299 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:28,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 548 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:37:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-12-02 11:37:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 174. [2024-12-02 11:37:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.3076923076923077) internal successors, (153), 117 states have internal predecessors, (153), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2024-12-02 11:37:28,733 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 164 [2024-12-02 11:37:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:28,733 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2024-12-02 11:37:28,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2024-12-02 11:37:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:28,734 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:28,734 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:28,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:37:28,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:28,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1752388881, now seen corresponding path program 1 times [2024-12-02 11:37:28,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:28,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482095438] [2024-12-02 11:37:28,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:28,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:33,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:33,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482095438] [2024-12-02 11:37:33,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482095438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:33,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:33,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:37:33,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711072610] [2024-12-02 11:37:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:33,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:37:33,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:33,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:37:33,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:37:33,361 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:34,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:34,142 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-12-02 11:37:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:37:34,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:37:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:34,144 INFO L225 Difference]: With dead ends: 316 [2024-12-02 11:37:34,145 INFO L226 Difference]: Without dead ends: 216 [2024-12-02 11:37:34,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:37:34,145 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 137 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:34,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 389 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:37:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-12-02 11:37:34,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 171. [2024-12-02 11:37:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 253 transitions. [2024-12-02 11:37:34,159 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 253 transitions. Word has length 164 [2024-12-02 11:37:34,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:34,159 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 253 transitions. [2024-12-02 11:37:34,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:34,160 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 253 transitions. [2024-12-02 11:37:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:34,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:34,160 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:34,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:37:34,161 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:34,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash -559635055, now seen corresponding path program 1 times [2024-12-02 11:37:34,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886561472] [2024-12-02 11:37:34,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886561472] [2024-12-02 11:37:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886561472] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:38,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:38,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:37:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423815364] [2024-12-02 11:37:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:38,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:37:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:38,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:37:38,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:37:38,070 INFO L87 Difference]: Start difference. First operand 171 states and 253 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:39,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:39,676 INFO L93 Difference]: Finished difference Result 426 states and 613 transitions. [2024-12-02 11:37:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:37:39,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:37:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:39,678 INFO L225 Difference]: With dead ends: 426 [2024-12-02 11:37:39,678 INFO L226 Difference]: Without dead ends: 318 [2024-12-02 11:37:39,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:37:39,679 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 457 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:39,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 555 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:37:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-12-02 11:37:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 175. [2024-12-02 11:37:39,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 118 states have (on average 1.3135593220338984) internal successors, (155), 118 states have internal predecessors, (155), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 259 transitions. [2024-12-02 11:37:39,699 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 259 transitions. Word has length 164 [2024-12-02 11:37:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:39,699 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 259 transitions. [2024-12-02 11:37:39,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:37:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 259 transitions. [2024-12-02 11:37:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:39,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:39,701 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:39,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:37:39,701 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:39,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash -952662065, now seen corresponding path program 1 times [2024-12-02 11:37:39,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:39,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674521352] [2024-12-02 11:37:39,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:45,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:45,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674521352] [2024-12-02 11:37:45,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674521352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:45,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:45,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:37:45,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007832837] [2024-12-02 11:37:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:45,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:37:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:45,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:37:45,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:37:45,472 INFO L87 Difference]: Start difference. First operand 175 states and 259 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:46,778 INFO L93 Difference]: Finished difference Result 387 states and 561 transitions. [2024-12-02 11:37:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:37:46,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-12-02 11:37:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:46,781 INFO L225 Difference]: With dead ends: 387 [2024-12-02 11:37:46,781 INFO L226 Difference]: Without dead ends: 279 [2024-12-02 11:37:46,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:37:46,782 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 323 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:46,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 536 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:37:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-12-02 11:37:46,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 177. [2024-12-02 11:37:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 120 states have (on average 1.325) internal successors, (159), 120 states have internal predecessors, (159), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:46,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 263 transitions. [2024-12-02 11:37:46,805 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 263 transitions. Word has length 164 [2024-12-02 11:37:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:46,805 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 263 transitions. [2024-12-02 11:37:46,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 263 transitions. [2024-12-02 11:37:46,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:46,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:46,807 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:46,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:37:46,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:46,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 141429523, now seen corresponding path program 1 times [2024-12-02 11:37:46,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:46,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367261334] [2024-12-02 11:37:46,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:46,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:37:52,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:52,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367261334] [2024-12-02 11:37:52,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367261334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:52,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:52,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:37:52,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471774408] [2024-12-02 11:37:52,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:52,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:37:52,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:52,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:37:52,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:37:52,763 INFO L87 Difference]: Start difference. First operand 177 states and 263 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:54,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:54,723 INFO L93 Difference]: Finished difference Result 407 states and 589 transitions. [2024-12-02 11:37:54,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:37:54,724 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-12-02 11:37:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:54,726 INFO L225 Difference]: With dead ends: 407 [2024-12-02 11:37:54,727 INFO L226 Difference]: Without dead ends: 299 [2024-12-02 11:37:54,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:37:54,728 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 541 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:54,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 494 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:37:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-12-02 11:37:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 178. [2024-12-02 11:37:54,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 121 states have internal predecessors, (161), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:37:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 265 transitions. [2024-12-02 11:37:54,751 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 265 transitions. Word has length 164 [2024-12-02 11:37:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:54,751 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 265 transitions. [2024-12-02 11:37:54,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:37:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2024-12-02 11:37:54,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:37:54,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:54,752 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:54,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:37:54,753 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:54,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash -251597487, now seen corresponding path program 1 times [2024-12-02 11:37:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:54,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575803039] [2024-12-02 11:37:54,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:00,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:00,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575803039] [2024-12-02 11:38:00,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575803039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:00,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:00,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:38:00,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219986575] [2024-12-02 11:38:00,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:00,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:38:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:00,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:38:00,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:38:00,297 INFO L87 Difference]: Start difference. First operand 178 states and 265 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:38:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:02,193 INFO L93 Difference]: Finished difference Result 396 states and 573 transitions. [2024-12-02 11:38:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:38:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-12-02 11:38:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:02,195 INFO L225 Difference]: With dead ends: 396 [2024-12-02 11:38:02,195 INFO L226 Difference]: Without dead ends: 288 [2024-12-02 11:38:02,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:38:02,196 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 217 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:02,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 718 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:38:02,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-12-02 11:38:02,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 177. [2024-12-02 11:38:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 120 states have (on average 1.325) internal successors, (159), 120 states have internal predecessors, (159), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 263 transitions. [2024-12-02 11:38:02,211 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 263 transitions. Word has length 164 [2024-12-02 11:38:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:02,211 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 263 transitions. [2024-12-02 11:38:02,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 11:38:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 263 transitions. [2024-12-02 11:38:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:38:02,212 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:02,212 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:02,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:38:02,213 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:02,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1570752305, now seen corresponding path program 1 times [2024-12-02 11:38:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616178616] [2024-12-02 11:38:02,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:06,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616178616] [2024-12-02 11:38:06,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616178616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:06,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:06,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:38:06,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103376376] [2024-12-02 11:38:06,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:06,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:38:06,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:06,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:38:06,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:38:06,941 INFO L87 Difference]: Start difference. First operand 177 states and 263 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:07,727 INFO L93 Difference]: Finished difference Result 396 states and 575 transitions. [2024-12-02 11:38:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:38:07,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:38:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:07,729 INFO L225 Difference]: With dead ends: 396 [2024-12-02 11:38:07,729 INFO L226 Difference]: Without dead ends: 288 [2024-12-02 11:38:07,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:38:07,729 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 225 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:07,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 424 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:38:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-12-02 11:38:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 178. [2024-12-02 11:38:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 121 states have internal predecessors, (161), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 265 transitions. [2024-12-02 11:38:07,744 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 265 transitions. Word has length 164 [2024-12-02 11:38:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:07,745 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 265 transitions. [2024-12-02 11:38:07,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2024-12-02 11:38:07,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:38:07,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:07,746 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:07,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:38:07,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:07,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -869687727, now seen corresponding path program 1 times [2024-12-02 11:38:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:07,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815300368] [2024-12-02 11:38:07,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:13,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:13,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815300368] [2024-12-02 11:38:13,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815300368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:13,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:13,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:38:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954374873] [2024-12-02 11:38:13,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:13,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:38:13,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:13,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:38:13,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:38:13,726 INFO L87 Difference]: Start difference. First operand 178 states and 265 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:14,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:14,439 INFO L93 Difference]: Finished difference Result 356 states and 520 transitions. [2024-12-02 11:38:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:38:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:38:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:14,441 INFO L225 Difference]: With dead ends: 356 [2024-12-02 11:38:14,441 INFO L226 Difference]: Without dead ends: 246 [2024-12-02 11:38:14,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:38:14,441 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 175 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:14,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 342 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:38:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-12-02 11:38:14,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 178. [2024-12-02 11:38:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 121 states have internal predecessors, (161), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 265 transitions. [2024-12-02 11:38:14,482 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 265 transitions. Word has length 164 [2024-12-02 11:38:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:14,482 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 265 transitions. [2024-12-02 11:38:14,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2024-12-02 11:38:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 11:38:14,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:14,483 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:38:14,483 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1262714737, now seen corresponding path program 1 times [2024-12-02 11:38:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520321102] [2024-12-02 11:38:14,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:15,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:15,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520321102] [2024-12-02 11:38:15,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520321102] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:15,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:15,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:38:15,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806271008] [2024-12-02 11:38:15,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:15,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:38:15,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:15,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:38:15,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:38:15,174 INFO L87 Difference]: Start difference. First operand 178 states and 265 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:15,699 INFO L93 Difference]: Finished difference Result 358 states and 522 transitions. [2024-12-02 11:38:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:38:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-12-02 11:38:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:15,701 INFO L225 Difference]: With dead ends: 358 [2024-12-02 11:38:15,701 INFO L226 Difference]: Without dead ends: 248 [2024-12-02 11:38:15,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:38:15,702 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 171 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:15,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 432 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:38:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-12-02 11:38:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 175. [2024-12-02 11:38:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 118 states have (on average 1.3305084745762712) internal successors, (157), 118 states have internal predecessors, (157), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:15,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 261 transitions. [2024-12-02 11:38:15,727 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 261 transitions. Word has length 164 [2024-12-02 11:38:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:15,727 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 261 transitions. [2024-12-02 11:38:15,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 261 transitions. [2024-12-02 11:38:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 11:38:15,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:15,728 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:15,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:38:15,728 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:15,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash -992432185, now seen corresponding path program 1 times [2024-12-02 11:38:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845238920] [2024-12-02 11:38:15,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845238920] [2024-12-02 11:38:41,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845238920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:41,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:41,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:38:41,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035018900] [2024-12-02 11:38:41,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:41,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:38:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:41,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:38:41,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:38:41,234 INFO L87 Difference]: Start difference. First operand 175 states and 261 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:42,457 INFO L93 Difference]: Finished difference Result 225 states and 323 transitions. [2024-12-02 11:38:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:38:42,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2024-12-02 11:38:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:42,459 INFO L225 Difference]: With dead ends: 225 [2024-12-02 11:38:42,459 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 11:38:42,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:38:42,459 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 106 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:42,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 649 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:38:42,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 11:38:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 192. [2024-12-02 11:38:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 134 states have (on average 1.335820895522388) internal successors, (179), 134 states have internal predecessors, (179), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 283 transitions. [2024-12-02 11:38:42,480 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 283 transitions. Word has length 165 [2024-12-02 11:38:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:42,481 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 283 transitions. [2024-12-02 11:38:42,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 283 transitions. [2024-12-02 11:38:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:38:42,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:42,482 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:42,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:38:42,482 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:42,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash 872197999, now seen corresponding path program 1 times [2024-12-02 11:38:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468144718] [2024-12-02 11:38:42,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:42,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:42,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:42,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468144718] [2024-12-02 11:38:42,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468144718] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:42,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:42,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:38:42,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171213315] [2024-12-02 11:38:42,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:42,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:38:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:42,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:38:42,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:38:42,537 INFO L87 Difference]: Start difference. First operand 192 states and 283 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:42,606 INFO L93 Difference]: Finished difference Result 368 states and 527 transitions. [2024-12-02 11:38:42,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:38:42,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2024-12-02 11:38:42,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:42,609 INFO L225 Difference]: With dead ends: 368 [2024-12-02 11:38:42,609 INFO L226 Difference]: Without dead ends: 241 [2024-12-02 11:38:42,609 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 [2024-12-02 11:38:42,610 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 47 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:42,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 201 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:38:42,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-12-02 11:38:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 238. [2024-12-02 11:38:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 166 states have (on average 1.283132530120482) internal successors, (213), 167 states have internal predecessors, (213), 62 states have call successors, (62), 9 states have call predecessors, (62), 9 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 11:38:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2024-12-02 11:38:42,643 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 166 [2024-12-02 11:38:42,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:42,644 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2024-12-02 11:38:42,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2024-12-02 11:38:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:38:42,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:42,644 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:42,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:38:42,645 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:42,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 927478476, now seen corresponding path program 1 times [2024-12-02 11:38:42,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:42,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868153257] [2024-12-02 11:38:42,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:38:42,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:42,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868153257] [2024-12-02 11:38:42,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868153257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:42,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:42,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:38:42,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907048058] [2024-12-02 11:38:42,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:42,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:38:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:42,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:38:42,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:38:42,699 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:42,768 INFO L93 Difference]: Finished difference Result 414 states and 580 transitions. [2024-12-02 11:38:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:38:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2024-12-02 11:38:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:42,770 INFO L225 Difference]: With dead ends: 414 [2024-12-02 11:38:42,770 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 11:38:42,771 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 [2024-12-02 11:38:42,771 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 41 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:42,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 226 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:38:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 11:38:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 209. [2024-12-02 11:38:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 149 states have internal predecessors, (193), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:38:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 297 transitions. [2024-12-02 11:38:42,793 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 297 transitions. Word has length 166 [2024-12-02 11:38:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:42,794 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 297 transitions. [2024-12-02 11:38:42,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:38:42,794 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 297 transitions. [2024-12-02 11:38:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:38:42,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:42,794 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:42,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:38:42,795 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:42,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1364767477, now seen corresponding path program 1 times [2024-12-02 11:38:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915821037] [2024-12-02 11:38:42,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:40:05,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:05,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915821037] [2024-12-02 11:40:05,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915821037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:05,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:05,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:05,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883942377] [2024-12-02 11:40:05,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:05,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:05,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:05,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:05,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:05,598 INFO L87 Difference]: Start difference. First operand 209 states and 297 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:40:06,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:06,471 INFO L93 Difference]: Finished difference Result 275 states and 373 transitions. [2024-12-02 11:40:06,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:40:06,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 166 [2024-12-02 11:40:06,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:06,474 INFO L225 Difference]: With dead ends: 275 [2024-12-02 11:40:06,474 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 11:40:06,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:40:06,476 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 64 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:06,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 877 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:40:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 11:40:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 209. [2024-12-02 11:40:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 149 states have internal predecessors, (193), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:40:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 297 transitions. [2024-12-02 11:40:06,498 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 297 transitions. Word has length 166 [2024-12-02 11:40:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:06,499 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 297 transitions. [2024-12-02 11:40:06,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:40:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 297 transitions. [2024-12-02 11:40:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 11:40:06,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:06,500 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:06,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:40:06,500 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:06,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1398527964, now seen corresponding path program 1 times [2024-12-02 11:40:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281213218] [2024-12-02 11:40:06,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:06,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:40:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281213218] [2024-12-02 11:40:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281213218] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:20,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:20,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:40:20,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80862304] [2024-12-02 11:40:20,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:40:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:20,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:40:20,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:40:20,819 INFO L87 Difference]: Start difference. First operand 209 states and 297 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:40:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:21,791 INFO L93 Difference]: Finished difference Result 284 states and 384 transitions. [2024-12-02 11:40:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:40:21,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2024-12-02 11:40:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:21,793 INFO L225 Difference]: With dead ends: 284 [2024-12-02 11:40:21,793 INFO L226 Difference]: Without dead ends: 282 [2024-12-02 11:40:21,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:40:21,793 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 77 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:21,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 686 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-12-02 11:40:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 216. [2024-12-02 11:40:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 156 states have (on average 1.294871794871795) internal successors, (202), 156 states have internal predecessors, (202), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:40:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 306 transitions. [2024-12-02 11:40:21,815 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 306 transitions. Word has length 167 [2024-12-02 11:40:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:21,815 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 306 transitions. [2024-12-02 11:40:21,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:40:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2024-12-02 11:40:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 11:40:21,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:21,816 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:21,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:40:21,816 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:21,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1256034532, now seen corresponding path program 1 times [2024-12-02 11:40:21,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:21,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936727878] [2024-12-02 11:40:21,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:21,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:10,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:10,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936727878] [2024-12-02 11:41:10,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936727878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:10,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:10,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:41:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749829546] [2024-12-02 11:41:10,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:10,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:41:10,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:10,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:41:10,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:10,121 INFO L87 Difference]: Start difference. First operand 216 states and 306 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:11,043 INFO L93 Difference]: Finished difference Result 275 states and 374 transitions. [2024-12-02 11:41:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:41:11,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2024-12-02 11:41:11,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:11,044 INFO L225 Difference]: With dead ends: 275 [2024-12-02 11:41:11,044 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 11:41:11,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:41:11,045 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:11,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1034 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:41:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 11:41:11,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 211. [2024-12-02 11:41:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 151 states have (on average 1.2980132450331126) internal successors, (196), 151 states have internal predecessors, (196), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 300 transitions. [2024-12-02 11:41:11,081 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 300 transitions. Word has length 167 [2024-12-02 11:41:11,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:11,081 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 300 transitions. [2024-12-02 11:41:11,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 300 transitions. [2024-12-02 11:41:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 11:41:11,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:11,082 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:11,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:41:11,082 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:11,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:11,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1116736592, now seen corresponding path program 1 times [2024-12-02 11:41:11,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:11,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362510256] [2024-12-02 11:41:11,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:11,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:13,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:13,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362510256] [2024-12-02 11:41:13,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362510256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:13,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:13,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:41:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835248110] [2024-12-02 11:41:13,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:13,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:41:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:13,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:41:13,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:13,015 INFO L87 Difference]: Start difference. First operand 211 states and 300 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:13,325 INFO L93 Difference]: Finished difference Result 282 states and 384 transitions. [2024-12-02 11:41:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:41:13,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-12-02 11:41:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:13,326 INFO L225 Difference]: With dead ends: 282 [2024-12-02 11:41:13,326 INFO L226 Difference]: Without dead ends: 280 [2024-12-02 11:41:13,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:41:13,327 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 66 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:13,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 784 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-12-02 11:41:13,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 221. [2024-12-02 11:41:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 161 states have (on average 1.3043478260869565) internal successors, (210), 161 states have internal predecessors, (210), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 314 transitions. [2024-12-02 11:41:13,350 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 314 transitions. Word has length 168 [2024-12-02 11:41:13,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:13,350 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 314 transitions. [2024-12-02 11:41:13,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 314 transitions. [2024-12-02 11:41:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 11:41:13,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:13,351 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:13,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:41:13,352 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:13,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2143895977, now seen corresponding path program 1 times [2024-12-02 11:41:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:13,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757892483] [2024-12-02 11:41:13,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:44,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:44,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757892483] [2024-12-02 11:41:44,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757892483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:44,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:44,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:41:44,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316208840] [2024-12-02 11:41:44,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:44,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:41:44,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:44,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:41:44,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:44,145 INFO L87 Difference]: Start difference. First operand 221 states and 314 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:45,695 INFO L93 Difference]: Finished difference Result 280 states and 385 transitions. [2024-12-02 11:41:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:41:45,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-12-02 11:41:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:45,697 INFO L225 Difference]: With dead ends: 280 [2024-12-02 11:41:45,697 INFO L226 Difference]: Without dead ends: 278 [2024-12-02 11:41:45,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:41:45,698 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 85 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:45,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 952 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:41:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-12-02 11:41:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 223. [2024-12-02 11:41:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 163 states have (on average 1.312883435582822) internal successors, (214), 163 states have internal predecessors, (214), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 318 transitions. [2024-12-02 11:41:45,738 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 318 transitions. Word has length 168 [2024-12-02 11:41:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:45,738 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 318 transitions. [2024-12-02 11:41:45,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 318 transitions. [2024-12-02 11:41:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 11:41:45,739 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:45,739 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:45,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:41:45,739 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:45,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1454896608, now seen corresponding path program 1 times [2024-12-02 11:41:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:45,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458987211] [2024-12-02 11:41:45,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:45,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458987211] [2024-12-02 11:41:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458987211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:45,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:45,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:45,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839119804] [2024-12-02 11:41:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:45,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:45,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:45,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:45,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:45,803 INFO L87 Difference]: Start difference. First operand 223 states and 318 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:45,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:45,875 INFO L93 Difference]: Finished difference Result 431 states and 602 transitions. [2024-12-02 11:41:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:45,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-12-02 11:41:45,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:45,878 INFO L225 Difference]: With dead ends: 431 [2024-12-02 11:41:45,878 INFO L226 Difference]: Without dead ends: 277 [2024-12-02 11:41:45,878 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 [2024-12-02 11:41:45,879 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 40 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:45,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 237 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-12-02 11:41:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 231. [2024-12-02 11:41:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 171 states have (on average 1.2982456140350878) internal successors, (222), 171 states have internal predecessors, (222), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2024-12-02 11:41:45,903 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 169 [2024-12-02 11:41:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:45,904 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2024-12-02 11:41:45,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2024-12-02 11:41:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 11:41:45,905 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:45,905 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:45,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:41:45,905 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:45,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1656283941, now seen corresponding path program 1 times [2024-12-02 11:41:45,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:45,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613436295] [2024-12-02 11:41:45,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:45,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:45,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613436295] [2024-12-02 11:41:45,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613436295] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:45,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:45,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:45,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772471681] [2024-12-02 11:41:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:45,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:45,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:45,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:45,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:45,947 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:46,015 INFO L93 Difference]: Finished difference Result 433 states and 600 transitions. [2024-12-02 11:41:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-12-02 11:41:46,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:46,018 INFO L225 Difference]: With dead ends: 433 [2024-12-02 11:41:46,018 INFO L226 Difference]: Without dead ends: 271 [2024-12-02 11:41:46,018 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 [2024-12-02 11:41:46,018 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 43 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:46,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 206 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-12-02 11:41:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 231. [2024-12-02 11:41:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 171 states have (on average 1.286549707602339) internal successors, (220), 171 states have internal predecessors, (220), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2024-12-02 11:41:46,042 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 169 [2024-12-02 11:41:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:46,042 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2024-12-02 11:41:46,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2024-12-02 11:41:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 11:41:46,043 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:46,043 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:46,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:41:46,043 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:46,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1717250189, now seen corresponding path program 1 times [2024-12-02 11:41:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:46,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650985970] [2024-12-02 11:41:46,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:46,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 11:41:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:49,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650985970] [2024-12-02 11:41:49,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650985970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:49,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:49,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:41:49,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104370210] [2024-12-02 11:41:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:49,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:41:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:49,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:41:49,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:49,185 INFO L87 Difference]: Start difference. First operand 231 states and 324 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:49,552 INFO L93 Difference]: Finished difference Result 296 states and 398 transitions. [2024-12-02 11:41:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:41:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-12-02 11:41:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:49,554 INFO L225 Difference]: With dead ends: 296 [2024-12-02 11:41:49,554 INFO L226 Difference]: Without dead ends: 294 [2024-12-02 11:41:49,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:41:49,554 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 95 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:49,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 854 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:49,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-02 11:41:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 225. [2024-12-02 11:41:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 165 states have (on average 1.290909090909091) internal successors, (213), 165 states have internal predecessors, (213), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 11:41:49,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 317 transitions. [2024-12-02 11:41:49,582 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 317 transitions. Word has length 169 [2024-12-02 11:41:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:49,582 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 317 transitions. [2024-12-02 11:41:49,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 11:41:49,582 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 317 transitions. [2024-12-02 11:41:49,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 11:41:49,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:49,582 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:49,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:41:49,583 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:49,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:49,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1519187211, now seen corresponding path program 1 times [2024-12-02 11:41:49,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:49,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579786503] [2024-12-02 11:41:49,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:49,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-12-02 11:41:50,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:50,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579786503] [2024-12-02 11:41:50,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579786503] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:50,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997639332] [2024-12-02 11:41:50,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:50,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:50,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:50,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:50,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43a5c00-1dd2-4aaa-89f4-d501b5489a74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:41:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:50,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 11:41:50,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 585 proven. 51 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2024-12-02 11:42:59,455 INFO L312 TraceCheckSpWp]: Computing backward predicates...