./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/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 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:14:39,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:14:39,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:14:39,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:14:39,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:14:39,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:14:39,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:14:39,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:14:39,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:14:39,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:14:39,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:14:39,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:14:39,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:14:39,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:14:39,933 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:14:39,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:14:39,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:14:39,935 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:14:39,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:14:39,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:14:39,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:14:39,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:14:39,936 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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/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 -> 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 [2024-12-02 14:14:40,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:14:40,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:14:40,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:14:40,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:14:40,167 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:14:40,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-12-02 14:14:42,803 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/data/5c065af18/4952d8b130104178ae24782326908a7b/FLAG0ac6194e8 [2024-12-02 14:14:43,025 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:14:43,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-12-02 14:14:43,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/data/5c065af18/4952d8b130104178ae24782326908a7b/FLAG0ac6194e8 [2024-12-02 14:14:43,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/data/5c065af18/4952d8b130104178ae24782326908a7b [2024-12-02 14:14:43,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:14:43,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:14:43,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:14:43,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:14:43,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:14:43,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42845816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43, skipping insertion in model container [2024-12-02 14:14:43,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:14:43,209 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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i[916,929] [2024-12-02 14:14:43,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:14:43,306 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:14:43,317 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_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i[916,929] [2024-12-02 14:14:43,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:14:43,372 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:14:43,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43 WrapperNode [2024-12-02 14:14:43,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:14:43,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:14:43,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:14:43,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:14:43,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,427 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 317 [2024-12-02 14:14:43,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:14:43,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:14:43,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:14:43,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:14:43,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,458 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 14:14:43,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:14:43,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:14:43,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:14:43,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:14:43,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (1/1) ... [2024-12-02 14:14:43,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:14:43,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:14:43,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:14:43,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:14:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:14:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:14:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:14:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:14:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:14:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:14:43,627 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:14:43,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:14:44,119 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-12-02 14:14:44,119 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:14:44,129 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:14:44,130 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:14:44,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:14:44 BoogieIcfgContainer [2024-12-02 14:14:44,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:14:44,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:14:44,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:14:44,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:14:44,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:14:43" (1/3) ... [2024-12-02 14:14:44,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69f7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:14:44, skipping insertion in model container [2024-12-02 14:14:44,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:43" (2/3) ... [2024-12-02 14:14:44,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69f7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:14:44, skipping insertion in model container [2024-12-02 14:14:44,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:14:44" (3/3) ... [2024-12-02 14:14:44,139 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-12-02 14:14:44,149 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:14:44,151 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-34.i that has 2 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:14:44,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:14:44,207 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;@6d19d3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:14:44,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:14:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 14:14:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-12-02 14:14:44,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:44,224 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:44,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:44,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1857806639, now seen corresponding path program 1 times [2024-12-02 14:14:44,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356230777] [2024-12-02 14:14:44,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:44,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-12-02 14:14:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:44,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356230777] [2024-12-02 14:14:44,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356230777] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:14:44,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81409417] [2024-12-02 14:14:44,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:44,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:14:44,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:14:44,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:14:44,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:14:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:44,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:14:44,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:14:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-12-02 14:14:44,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:14:44,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81409417] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:44,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:14:44,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:14:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334246855] [2024-12-02 14:14:44,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:44,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:14:44,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:44,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:14:44,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:14:44,831 INFO L87 Difference]: Start difference. First operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:14:44,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:44,864 INFO L93 Difference]: Finished difference Result 267 states and 480 transitions. [2024-12-02 14:14:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:14:44,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 276 [2024-12-02 14:14:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:44,873 INFO L225 Difference]: With dead ends: 267 [2024-12-02 14:14:44,873 INFO L226 Difference]: Without dead ends: 133 [2024-12-02 14:14:44,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 277 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 14:14:44,878 INFO L435 NwaCegarLoop]: 214 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, 214 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 14:14:44,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:14:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-12-02 14:14:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-12-02 14:14:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 14:14:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 214 transitions. [2024-12-02 14:14:44,920 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 214 transitions. Word has length 276 [2024-12-02 14:14:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:44,920 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 214 transitions. [2024-12-02 14:14:44,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:14:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 214 transitions. [2024-12-02 14:14:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-12-02 14:14:44,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:44,927 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:44,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:14:45,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f205c1bd-0e01-4f97-bdf7-c131d75b0a40/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 14:14:45,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:45,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash 131489191, now seen corresponding path program 1 times [2024-12-02 14:14:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681589516] [2024-12-02 14:14:45,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:14:45,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681589516] [2024-12-02 14:14:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681589516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:45,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:45,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:14:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480923959] [2024-12-02 14:14:45,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:45,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:14:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:45,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:14:45,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:14:45,832 INFO L87 Difference]: Start difference. First operand 133 states and 214 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:46,098 INFO L93 Difference]: Finished difference Result 423 states and 681 transitions. [2024-12-02 14:14:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:14:46,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 276 [2024-12-02 14:14:46,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:46,104 INFO L225 Difference]: With dead ends: 423 [2024-12-02 14:14:46,104 INFO L226 Difference]: Without dead ends: 293 [2024-12-02 14:14:46,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:46,106 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 204 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:46,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 660 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:14:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-12-02 14:14:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2024-12-02 14:14:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 172 states have (on average 1.447674418604651) internal successors, (249), 172 states have internal predecessors, (249), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 14:14:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 425 transitions. [2024-12-02 14:14:46,165 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 425 transitions. Word has length 276 [2024-12-02 14:14:46,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:46,166 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 425 transitions. [2024-12-02 14:14:46,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:46,166 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 425 transitions. [2024-12-02 14:14:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-12-02 14:14:46,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:46,171 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:46,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:14:46,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:46,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1079059205, now seen corresponding path program 1 times [2024-12-02 14:14:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304930100] [2024-12-02 14:14:46,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:14:46,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:46,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304930100] [2024-12-02 14:14:46,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304930100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:46,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:46,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:14:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383279769] [2024-12-02 14:14:46,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:46,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:14:46,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:46,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:14:46,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:46,629 INFO L87 Difference]: Start difference. First operand 263 states and 425 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:47,128 INFO L93 Difference]: Finished difference Result 778 states and 1258 transitions. [2024-12-02 14:14:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:14:47,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 277 [2024-12-02 14:14:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:47,134 INFO L225 Difference]: With dead ends: 778 [2024-12-02 14:14:47,134 INFO L226 Difference]: Without dead ends: 518 [2024-12-02 14:14:47,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:14:47,136 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 241 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:47,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 796 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:14:47,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-12-02 14:14:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 267. [2024-12-02 14:14:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 176 states have (on average 1.4375) internal successors, (253), 176 states have internal predecessors, (253), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 14:14:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 429 transitions. [2024-12-02 14:14:47,195 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 429 transitions. Word has length 277 [2024-12-02 14:14:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:47,196 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 429 transitions. [2024-12-02 14:14:47,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 429 transitions. [2024-12-02 14:14:47,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:14:47,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:47,201 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:47,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:14:47,201 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:47,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash 998591439, now seen corresponding path program 1 times [2024-12-02 14:14:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:47,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092104355] [2024-12-02 14:14:47,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:47,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:14:48,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:48,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092104355] [2024-12-02 14:14:48,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092104355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:48,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:48,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:14:48,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489527946] [2024-12-02 14:14:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:48,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:14:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:48,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:14:48,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:14:48,277 INFO L87 Difference]: Start difference. First operand 267 states and 429 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:48,982 INFO L93 Difference]: Finished difference Result 916 states and 1461 transitions. [2024-12-02 14:14:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:14:48,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:14:48,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:48,988 INFO L225 Difference]: With dead ends: 916 [2024-12-02 14:14:48,988 INFO L226 Difference]: Without dead ends: 652 [2024-12-02 14:14:48,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:14:48,990 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 377 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:48,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 553 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:14:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-12-02 14:14:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 447. [2024-12-02 14:14:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 322 states have (on average 1.484472049689441) internal successors, (478), 324 states have internal predecessors, (478), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 14:14:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 718 transitions. [2024-12-02 14:14:49,089 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 718 transitions. Word has length 278 [2024-12-02 14:14:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:49,090 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 718 transitions. [2024-12-02 14:14:49,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 718 transitions. [2024-12-02 14:14:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:14:49,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:49,095 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:49,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:14:49,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:49,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:49,096 INFO L85 PathProgramCache]: Analyzing trace with hash -924636595, now seen corresponding path program 1 times [2024-12-02 14:14:49,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:49,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795660975] [2024-12-02 14:14:49,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:14:54,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:54,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795660975] [2024-12-02 14:14:54,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795660975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:54,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:54,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:14:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069360899] [2024-12-02 14:14:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:54,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:14:54,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:54,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:14:54,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:14:54,130 INFO L87 Difference]: Start difference. First operand 447 states and 718 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:14:57,875 INFO L93 Difference]: Finished difference Result 1282 states and 1984 transitions. [2024-12-02 14:14:57,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:14:57,876 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:14:57,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:14:57,881 INFO L225 Difference]: With dead ends: 1282 [2024-12-02 14:14:57,881 INFO L226 Difference]: Without dead ends: 838 [2024-12-02 14:14:57,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:14:57,883 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 754 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:14:57,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 874 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:14:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-12-02 14:14:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 583. [2024-12-02 14:14:57,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 434 states have (on average 1.4516129032258065) internal successors, (630), 440 states have internal predecessors, (630), 140 states have call successors, (140), 8 states have call predecessors, (140), 8 states have return successors, (140), 134 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 14:14:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 910 transitions. [2024-12-02 14:14:57,969 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 910 transitions. Word has length 278 [2024-12-02 14:14:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:14:57,970 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 910 transitions. [2024-12-02 14:14:57,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:14:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 910 transitions. [2024-12-02 14:14:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:14:57,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:14:57,974 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:57,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:14:57,974 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:14:57,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:57,975 INFO L85 PathProgramCache]: Analyzing trace with hash 850370767, now seen corresponding path program 1 times [2024-12-02 14:14:57,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:57,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094242555] [2024-12-02 14:14:57,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:57,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:00,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:00,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094242555] [2024-12-02 14:15:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094242555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:00,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:00,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 14:15:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189044187] [2024-12-02 14:15:00,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:00,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:15:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:00,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:15:00,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:15:00,341 INFO L87 Difference]: Start difference. First operand 583 states and 910 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:01,907 INFO L93 Difference]: Finished difference Result 1942 states and 2980 transitions. [2024-12-02 14:15:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 14:15:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:15:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:01,914 INFO L225 Difference]: With dead ends: 1942 [2024-12-02 14:15:01,914 INFO L226 Difference]: Without dead ends: 1362 [2024-12-02 14:15:01,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:15:01,917 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 470 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:01,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 886 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:15:01,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-12-02 14:15:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 800. [2024-12-02 14:15:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 605 states have (on average 1.4611570247933885) internal successors, (884), 611 states have internal predecessors, (884), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 14:15:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1252 transitions. [2024-12-02 14:15:02,041 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1252 transitions. Word has length 278 [2024-12-02 14:15:02,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:02,042 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1252 transitions. [2024-12-02 14:15:02,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1252 transitions. [2024-12-02 14:15:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:15:02,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:02,045 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:02,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:15:02,045 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:02,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash -244578225, now seen corresponding path program 1 times [2024-12-02 14:15:02,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:02,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117872368] [2024-12-02 14:15:02,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:02,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:04,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:04,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117872368] [2024-12-02 14:15:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117872368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:04,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:15:04,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584203478] [2024-12-02 14:15:04,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:04,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:15:04,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:04,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:15:04,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:15:04,533 INFO L87 Difference]: Start difference. First operand 800 states and 1252 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:15:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:06,530 INFO L93 Difference]: Finished difference Result 2100 states and 3195 transitions. [2024-12-02 14:15:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:15:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 278 [2024-12-02 14:15:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:06,534 INFO L225 Difference]: With dead ends: 2100 [2024-12-02 14:15:06,534 INFO L226 Difference]: Without dead ends: 1438 [2024-12-02 14:15:06,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:15:06,536 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 497 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:06,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1160 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 14:15:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-12-02 14:15:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1134. [2024-12-02 14:15:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 939 states have (on average 1.4717784877529287) internal successors, (1382), 945 states have internal predecessors, (1382), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 14:15:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1750 transitions. [2024-12-02 14:15:06,642 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1750 transitions. Word has length 278 [2024-12-02 14:15:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:06,643 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1750 transitions. [2024-12-02 14:15:06,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:15:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1750 transitions. [2024-12-02 14:15:06,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:15:06,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:06,645 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:06,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:15:06,645 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:06,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2100197630, now seen corresponding path program 1 times [2024-12-02 14:15:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:06,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84693015] [2024-12-02 14:15:06,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:06,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:08,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:08,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84693015] [2024-12-02 14:15:08,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84693015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:08,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:08,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:15:08,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975410843] [2024-12-02 14:15:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:08,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:15:08,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:08,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:15:08,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:15:08,328 INFO L87 Difference]: Start difference. First operand 1134 states and 1750 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:08,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:08,905 INFO L93 Difference]: Finished difference Result 2190 states and 3343 transitions. [2024-12-02 14:15:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:15:08,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:15:08,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:08,909 INFO L225 Difference]: With dead ends: 2190 [2024-12-02 14:15:08,909 INFO L226 Difference]: Without dead ends: 1506 [2024-12-02 14:15:08,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:15:08,911 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 245 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:08,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 695 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:15:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-12-02 14:15:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1146. [2024-12-02 14:15:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 951 states have (on average 1.4616193480546793) internal successors, (1390), 957 states have internal predecessors, (1390), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 14:15:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1758 transitions. [2024-12-02 14:15:08,997 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1758 transitions. Word has length 278 [2024-12-02 14:15:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:08,998 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1758 transitions. [2024-12-02 14:15:08,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1758 transitions. [2024-12-02 14:15:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:15:09,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:09,001 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:09,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:15:09,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:09,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -160746483, now seen corresponding path program 1 times [2024-12-02 14:15:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:09,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208513424] [2024-12-02 14:15:09,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:09,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208513424] [2024-12-02 14:15:09,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208513424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:09,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:09,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:15:09,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586297198] [2024-12-02 14:15:09,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:09,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:15:09,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:09,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:15:09,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:15:09,398 INFO L87 Difference]: Start difference. First operand 1146 states and 1758 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:10,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:10,206 INFO L93 Difference]: Finished difference Result 2384 states and 3620 transitions. [2024-12-02 14:15:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:15:10,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:15:10,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:10,210 INFO L225 Difference]: With dead ends: 2384 [2024-12-02 14:15:10,211 INFO L226 Difference]: Without dead ends: 1716 [2024-12-02 14:15:10,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:15:10,212 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 343 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:10,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 881 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:15:10,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-12-02 14:15:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1126. [2024-12-02 14:15:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 931 states have (on average 1.4543501611170784) internal successors, (1354), 937 states have internal predecessors, (1354), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 14:15:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1722 transitions. [2024-12-02 14:15:10,346 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1722 transitions. Word has length 278 [2024-12-02 14:15:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:10,347 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1722 transitions. [2024-12-02 14:15:10,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:10,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1722 transitions. [2024-12-02 14:15:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:15:10,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:10,350 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:10,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:15:10,350 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:10,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1255695475, now seen corresponding path program 1 times [2024-12-02 14:15:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:10,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852247164] [2024-12-02 14:15:10,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:10,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:10,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852247164] [2024-12-02 14:15:10,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852247164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:10,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:10,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:15:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679447088] [2024-12-02 14:15:10,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:10,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:15:10,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:10,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:15:10,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:15:10,695 INFO L87 Difference]: Start difference. First operand 1126 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:11,083 INFO L93 Difference]: Finished difference Result 2044 states and 3106 transitions. [2024-12-02 14:15:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:15:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-12-02 14:15:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:11,087 INFO L225 Difference]: With dead ends: 2044 [2024-12-02 14:15:11,087 INFO L226 Difference]: Without dead ends: 1168 [2024-12-02 14:15:11,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:15:11,089 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 156 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:11,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 569 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:15:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-12-02 14:15:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1062. [2024-12-02 14:15:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 867 states have (on average 1.4371395617070357) internal successors, (1246), 873 states have internal predecessors, (1246), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 14:15:11,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1614 transitions. [2024-12-02 14:15:11,212 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1614 transitions. Word has length 278 [2024-12-02 14:15:11,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:11,212 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1614 transitions. [2024-12-02 14:15:11,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1614 transitions. [2024-12-02 14:15:11,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-12-02 14:15:11,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:11,215 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:11,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:15:11,215 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:11,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:11,216 INFO L85 PathProgramCache]: Analyzing trace with hash 670490962, now seen corresponding path program 1 times [2024-12-02 14:15:11,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:11,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671725480] [2024-12-02 14:15:11,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:11,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:13,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:13,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671725480] [2024-12-02 14:15:13,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671725480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:13,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:13,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 14:15:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065241620] [2024-12-02 14:15:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:13,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:15:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:13,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:15:13,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:15:13,797 INFO L87 Difference]: Start difference. First operand 1062 states and 1614 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:15,391 INFO L93 Difference]: Finished difference Result 2064 states and 3114 transitions. [2024-12-02 14:15:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:15:15,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 279 [2024-12-02 14:15:15,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:15,396 INFO L225 Difference]: With dead ends: 2064 [2024-12-02 14:15:15,396 INFO L226 Difference]: Without dead ends: 1484 [2024-12-02 14:15:15,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:15:15,397 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 357 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:15,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 986 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:15:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-12-02 14:15:15,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 910. [2024-12-02 14:15:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 735 states have (on average 1.4394557823129253) internal successors, (1058), 737 states have internal predecessors, (1058), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:15:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1386 transitions. [2024-12-02 14:15:15,472 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1386 transitions. Word has length 279 [2024-12-02 14:15:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:15,473 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1386 transitions. [2024-12-02 14:15:15,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1386 transitions. [2024-12-02 14:15:15,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-12-02 14:15:15,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:15,475 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:15,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:15:15,475 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:15,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash 515457480, now seen corresponding path program 1 times [2024-12-02 14:15:15,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:15,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191129] [2024-12-02 14:15:15,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:21,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:21,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191129] [2024-12-02 14:15:21,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:21,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:21,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:15:21,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487401995] [2024-12-02 14:15:21,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:21,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:15:21,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:21,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:15:21,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:15:21,123 INFO L87 Difference]: Start difference. First operand 910 states and 1386 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:15:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:24,548 INFO L93 Difference]: Finished difference Result 1902 states and 2841 transitions. [2024-12-02 14:15:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:15:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 279 [2024-12-02 14:15:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:24,552 INFO L225 Difference]: With dead ends: 1902 [2024-12-02 14:15:24,552 INFO L226 Difference]: Without dead ends: 1298 [2024-12-02 14:15:24,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:15:24,553 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 344 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:24,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1796 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 14:15:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-12-02 14:15:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1050. [2024-12-02 14:15:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 875 states have (on average 1.4194285714285715) internal successors, (1242), 877 states have internal predecessors, (1242), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:15:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1570 transitions. [2024-12-02 14:15:24,629 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1570 transitions. Word has length 279 [2024-12-02 14:15:24,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:24,629 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1570 transitions. [2024-12-02 14:15:24,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:15:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1570 transitions. [2024-12-02 14:15:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 14:15:24,631 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:24,631 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:24,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:15:24,631 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:24,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -599928232, now seen corresponding path program 1 times [2024-12-02 14:15:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005649408] [2024-12-02 14:15:24,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:24,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:33,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005649408] [2024-12-02 14:15:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005649408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:33,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:33,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:15:33,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727608801] [2024-12-02 14:15:33,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:33,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:15:33,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:33,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:15:33,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:15:33,769 INFO L87 Difference]: Start difference. First operand 1050 states and 1570 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:37,184 INFO L93 Difference]: Finished difference Result 1836 states and 2725 transitions. [2024-12-02 14:15:37,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:15:37,185 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-12-02 14:15:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:37,189 INFO L225 Difference]: With dead ends: 1836 [2024-12-02 14:15:37,189 INFO L226 Difference]: Without dead ends: 1238 [2024-12-02 14:15:37,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:15:37,191 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 446 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:37,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1472 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:15:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-12-02 14:15:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 968. [2024-12-02 14:15:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 793 states have (on average 1.4325346784363178) internal successors, (1136), 795 states have internal predecessors, (1136), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:15:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1464 transitions. [2024-12-02 14:15:37,290 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1464 transitions. Word has length 280 [2024-12-02 14:15:37,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:37,290 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1464 transitions. [2024-12-02 14:15:37,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:37,290 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1464 transitions. [2024-12-02 14:15:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 14:15:37,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:37,292 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:37,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:15:37,292 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:37,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:37,292 INFO L85 PathProgramCache]: Analyzing trace with hash 80130138, now seen corresponding path program 1 times [2024-12-02 14:15:37,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504024091] [2024-12-02 14:15:37,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:37,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:39,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504024091] [2024-12-02 14:15:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504024091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:39,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:15:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407869009] [2024-12-02 14:15:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:15:39,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:39,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:15:39,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:15:39,275 INFO L87 Difference]: Start difference. First operand 968 states and 1464 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:40,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:40,546 INFO L93 Difference]: Finished difference Result 1594 states and 2398 transitions. [2024-12-02 14:15:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 14:15:40,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-12-02 14:15:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:40,549 INFO L225 Difference]: With dead ends: 1594 [2024-12-02 14:15:40,549 INFO L226 Difference]: Without dead ends: 1086 [2024-12-02 14:15:40,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:15:40,550 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 314 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:40,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 919 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:15:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-12-02 14:15:40,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 948. [2024-12-02 14:15:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 773 states have (on average 1.4333764553686934) internal successors, (1108), 775 states have internal predecessors, (1108), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:15:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1436 transitions. [2024-12-02 14:15:40,624 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1436 transitions. Word has length 280 [2024-12-02 14:15:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:40,624 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1436 transitions. [2024-12-02 14:15:40,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1436 transitions. [2024-12-02 14:15:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 14:15:40,626 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:40,626 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:40,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:15:40,626 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:40,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:40,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1824763124, now seen corresponding path program 1 times [2024-12-02 14:15:40,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:40,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652472790] [2024-12-02 14:15:40,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:40,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:46,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:46,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652472790] [2024-12-02 14:15:46,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652472790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:46,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:46,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:15:46,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665903372] [2024-12-02 14:15:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:46,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:15:46,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:46,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:15:46,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:15:46,252 INFO L87 Difference]: Start difference. First operand 948 states and 1436 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:15:52,929 INFO L93 Difference]: Finished difference Result 1696 states and 2562 transitions. [2024-12-02 14:15:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:15:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-12-02 14:15:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:15:52,932 INFO L225 Difference]: With dead ends: 1696 [2024-12-02 14:15:52,932 INFO L226 Difference]: Without dead ends: 1204 [2024-12-02 14:15:52,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:15:52,934 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 409 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:15:52,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1681 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 14:15:52,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-12-02 14:15:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 980. [2024-12-02 14:15:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 805 states have (on average 1.431055900621118) internal successors, (1152), 807 states have internal predecessors, (1152), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:15:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1480 transitions. [2024-12-02 14:15:53,018 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1480 transitions. Word has length 280 [2024-12-02 14:15:53,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:15:53,018 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1480 transitions. [2024-12-02 14:15:53,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:15:53,018 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1480 transitions. [2024-12-02 14:15:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 14:15:53,020 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:15:53,020 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:53,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:15:53,020 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:15:53,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:15:53,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1375255180, now seen corresponding path program 1 times [2024-12-02 14:15:53,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:15:53,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669673116] [2024-12-02 14:15:53,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:15:53,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:15:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:15:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:15:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:15:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669673116] [2024-12-02 14:15:57,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669673116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:15:57,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:15:57,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:15:57,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863323372] [2024-12-02 14:15:57,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:15:57,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:15:57,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:15:57,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:15:57,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:15:57,387 INFO L87 Difference]: Start difference. First operand 980 states and 1480 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:16:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:16:04,420 INFO L93 Difference]: Finished difference Result 2172 states and 3216 transitions. [2024-12-02 14:16:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:16:04,421 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-12-02 14:16:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:16:04,427 INFO L225 Difference]: With dead ends: 2172 [2024-12-02 14:16:04,427 INFO L226 Difference]: Without dead ends: 1656 [2024-12-02 14:16:04,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:16:04,429 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 599 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:16:04,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1495 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 14:16:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-12-02 14:16:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1076. [2024-12-02 14:16:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 901 states have (on average 1.4317425083240845) internal successors, (1290), 903 states have internal predecessors, (1290), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:16:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1618 transitions. [2024-12-02 14:16:04,547 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1618 transitions. Word has length 280 [2024-12-02 14:16:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:16:04,548 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1618 transitions. [2024-12-02 14:16:04,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:16:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1618 transitions. [2024-12-02 14:16:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 14:16:04,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:16:04,550 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:04,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:16:04,550 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:16:04,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:16:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1144704754, now seen corresponding path program 1 times [2024-12-02 14:16:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:16:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541117846] [2024-12-02 14:16:04,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:16:04,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:16:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:16:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:16:17,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:16:17,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541117846] [2024-12-02 14:16:17,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541117846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:16:17,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:16:17,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:16:17,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977882861] [2024-12-02 14:16:17,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:16:17,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:16:17,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:16:17,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:16:17,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:16:17,398 INFO L87 Difference]: Start difference. First operand 1076 states and 1618 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:16:26,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:16:26,188 INFO L93 Difference]: Finished difference Result 2120 states and 3092 transitions. [2024-12-02 14:16:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:16:26,189 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-12-02 14:16:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:16:26,195 INFO L225 Difference]: With dead ends: 2120 [2024-12-02 14:16:26,195 INFO L226 Difference]: Without dead ends: 1502 [2024-12-02 14:16:26,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:16:26,197 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 439 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:16:26,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1532 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-02 14:16:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-12-02 14:16:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1064. [2024-12-02 14:16:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 889 states have (on average 1.4173228346456692) internal successors, (1260), 891 states have internal predecessors, (1260), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:16:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1588 transitions. [2024-12-02 14:16:26,303 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1588 transitions. Word has length 280 [2024-12-02 14:16:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:16:26,303 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1588 transitions. [2024-12-02 14:16:26,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:16:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1588 transitions. [2024-12-02 14:16:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:16:26,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:16:26,305 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:26,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:16:26,305 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:16:26,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:16:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1239063892, now seen corresponding path program 1 times [2024-12-02 14:16:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:16:26,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330392795] [2024-12-02 14:16:26,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:16:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:16:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:17:17,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:17,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330392795] [2024-12-02 14:17:17,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330392795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:17:17,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:17:17,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:17:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049403458] [2024-12-02 14:17:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:17:17,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:17:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:17,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:17:17,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:17:17,911 INFO L87 Difference]: Start difference. First operand 1064 states and 1588 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:17:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:19,155 INFO L93 Difference]: Finished difference Result 1670 states and 2397 transitions. [2024-12-02 14:17:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:17:19,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 281 [2024-12-02 14:17:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:19,162 INFO L225 Difference]: With dead ends: 1670 [2024-12-02 14:17:19,162 INFO L226 Difference]: Without dead ends: 1668 [2024-12-02 14:17:19,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:17:19,163 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 393 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:19,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1793 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:17:19,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-12-02 14:17:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1210. [2024-12-02 14:17:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1035 states have (on average 1.404830917874396) internal successors, (1454), 1037 states have internal predecessors, (1454), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:17:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1782 transitions. [2024-12-02 14:17:19,260 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1782 transitions. Word has length 281 [2024-12-02 14:17:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:19,261 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1782 transitions. [2024-12-02 14:17:19,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:17:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1782 transitions. [2024-12-02 14:17:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:17:19,263 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:19,263 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:19,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:17:19,263 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:17:19,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2056712342, now seen corresponding path program 1 times [2024-12-02 14:17:19,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:19,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366770711] [2024-12-02 14:17:19,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:18:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:18:51,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:18:51,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366770711] [2024-12-02 14:18:51,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366770711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:18:51,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:18:51,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:18:51,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833895752] [2024-12-02 14:18:51,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:18:51,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:18:51,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:18:51,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:18:51,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:18:51,389 INFO L87 Difference]: Start difference. First operand 1210 states and 1782 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:18:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:18:53,019 INFO L93 Difference]: Finished difference Result 1732 states and 2474 transitions. [2024-12-02 14:18:53,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:18:53,020 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 281 [2024-12-02 14:18:53,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:18:53,026 INFO L225 Difference]: With dead ends: 1732 [2024-12-02 14:18:53,026 INFO L226 Difference]: Without dead ends: 1730 [2024-12-02 14:18:53,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:18:53,027 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 364 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:18:53,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1737 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:18:53,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-12-02 14:18:53,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1348. [2024-12-02 14:18:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1173 states have (on average 1.3844842284739982) internal successors, (1624), 1175 states have internal predecessors, (1624), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:18:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1952 transitions. [2024-12-02 14:18:53,124 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1952 transitions. Word has length 281 [2024-12-02 14:18:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:18:53,124 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 1952 transitions. [2024-12-02 14:18:53,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:18:53,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1952 transitions. [2024-12-02 14:18:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:18:53,126 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:18:53,126 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:53,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:18:53,126 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:18:53,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:18:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash -816362066, now seen corresponding path program 1 times [2024-12-02 14:18:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:18:53,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696482292] [2024-12-02 14:18:53,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:18:53,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:18:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:18:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:18:53,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:18:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696482292] [2024-12-02 14:18:53,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696482292] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:18:53,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:18:53,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:18:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552015630] [2024-12-02 14:18:53,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:18:53,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:18:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:18:53,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:18:53,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:18:53,275 INFO L87 Difference]: Start difference. First operand 1348 states and 1952 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:18:53,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:18:53,533 INFO L93 Difference]: Finished difference Result 2178 states and 3184 transitions. [2024-12-02 14:18:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:18:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-12-02 14:18:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:18:53,539 INFO L225 Difference]: With dead ends: 2178 [2024-12-02 14:18:53,539 INFO L226 Difference]: Without dead ends: 1340 [2024-12-02 14:18:53,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:18:53,541 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 167 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:18:53,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 823 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:18:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-12-02 14:18:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1286. [2024-12-02 14:18:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1111 states have (on average 1.3897389738973898) internal successors, (1544), 1113 states have internal predecessors, (1544), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:18:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1872 transitions. [2024-12-02 14:18:53,637 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1872 transitions. Word has length 281 [2024-12-02 14:18:53,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:18:53,637 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1872 transitions. [2024-12-02 14:18:53,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:18:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1872 transitions. [2024-12-02 14:18:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:18:53,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:18:53,639 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:53,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:18:53,639 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:18:53,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:18:53,639 INFO L85 PathProgramCache]: Analyzing trace with hash -350056047, now seen corresponding path program 1 times [2024-12-02 14:18:53,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:18:53,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829339050] [2024-12-02 14:18:53,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:18:53,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:18:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:18:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:18:56,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:18:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829339050] [2024-12-02 14:18:56,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829339050] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:18:56,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:18:56,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:18:56,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891534731] [2024-12-02 14:18:56,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:18:56,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:18:56,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:18:56,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:18:56,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:18:56,961 INFO L87 Difference]: Start difference. First operand 1286 states and 1872 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:18:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:18:59,356 INFO L93 Difference]: Finished difference Result 2472 states and 3596 transitions. [2024-12-02 14:18:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:18:59,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-12-02 14:18:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:18:59,361 INFO L225 Difference]: With dead ends: 2472 [2024-12-02 14:18:59,361 INFO L226 Difference]: Without dead ends: 1992 [2024-12-02 14:18:59,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:18:59,363 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 238 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:18:59,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1062 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:18:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2024-12-02 14:18:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1398. [2024-12-02 14:18:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1223 states have (on average 1.4014717906786591) internal successors, (1714), 1225 states have internal predecessors, (1714), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:18:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2042 transitions. [2024-12-02 14:18:59,456 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2042 transitions. Word has length 281 [2024-12-02 14:18:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:18:59,457 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2042 transitions. [2024-12-02 14:18:59,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:18:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2042 transitions. [2024-12-02 14:18:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:18:59,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:18:59,458 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:59,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:18:59,459 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:18:59,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:18:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash 330002323, now seen corresponding path program 1 times [2024-12-02 14:18:59,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:18:59,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323731556] [2024-12-02 14:18:59,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:18:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:18:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:19:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:19:05,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:19:05,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323731556] [2024-12-02 14:19:05,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323731556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:19:05,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:19:05,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:19:05,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813664818] [2024-12-02 14:19:05,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:19:05,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:19:05,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:19:05,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:19:05,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:19:05,167 INFO L87 Difference]: Start difference. First operand 1398 states and 2042 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:19:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:19:07,719 INFO L93 Difference]: Finished difference Result 2434 states and 3513 transitions. [2024-12-02 14:19:07,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:19:07,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-12-02 14:19:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:19:07,726 INFO L225 Difference]: With dead ends: 2434 [2024-12-02 14:19:07,726 INFO L226 Difference]: Without dead ends: 1670 [2024-12-02 14:19:07,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:19:07,729 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 336 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:19:07,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1560 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:19:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-12-02 14:19:07,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1394. [2024-12-02 14:19:07,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1219 states have (on average 1.3945857260049221) internal successors, (1700), 1221 states have internal predecessors, (1700), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:19:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2028 transitions. [2024-12-02 14:19:07,825 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2028 transitions. Word has length 281 [2024-12-02 14:19:07,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:19:07,825 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 2028 transitions. [2024-12-02 14:19:07,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:19:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2028 transitions. [2024-12-02 14:19:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 14:19:07,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:19:07,827 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:07,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:19:07,827 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:19:07,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:19:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1120726327, now seen corresponding path program 1 times [2024-12-02 14:19:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:19:07,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216512323] [2024-12-02 14:19:07,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:19:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:19:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:19:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:19:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:19:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216512323] [2024-12-02 14:19:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216512323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:19:11,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:19:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:19:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306956038] [2024-12-02 14:19:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:19:11,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:19:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:19:11,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:19:11,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:19:11,654 INFO L87 Difference]: Start difference. First operand 1394 states and 2028 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:19:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:19:14,583 INFO L93 Difference]: Finished difference Result 2316 states and 3416 transitions. [2024-12-02 14:19:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:19:14,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 281 [2024-12-02 14:19:14,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:19:14,587 INFO L225 Difference]: With dead ends: 2316 [2024-12-02 14:19:14,587 INFO L226 Difference]: Without dead ends: 1700 [2024-12-02 14:19:14,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:19:14,588 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 316 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:19:14,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 815 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:19:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2024-12-02 14:19:14,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1406. [2024-12-02 14:19:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1231 states have (on average 1.3939886271324127) internal successors, (1716), 1233 states have internal predecessors, (1716), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:19:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2044 transitions. [2024-12-02 14:19:14,693 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2044 transitions. Word has length 281 [2024-12-02 14:19:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:19:14,694 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2044 transitions. [2024-12-02 14:19:14,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:19:14,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2044 transitions. [2024-12-02 14:19:14,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:19:14,696 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:19:14,696 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:14,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:19:14,696 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:19:14,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:19:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash -312176249, now seen corresponding path program 1 times [2024-12-02 14:19:14,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:19:14,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950117286] [2024-12-02 14:19:14,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:19:14,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:19:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:20:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:20:11,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:20:11,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950117286] [2024-12-02 14:20:11,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950117286] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:20:11,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:20:11,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:20:11,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133756009] [2024-12-02 14:20:11,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:20:11,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:20:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:20:11,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:20:11,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:20:11,559 INFO L87 Difference]: Start difference. First operand 1406 states and 2044 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:20:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:20:14,115 INFO L93 Difference]: Finished difference Result 1892 states and 2699 transitions. [2024-12-02 14:20:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:20:14,116 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-12-02 14:20:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:20:14,121 INFO L225 Difference]: With dead ends: 1892 [2024-12-02 14:20:14,121 INFO L226 Difference]: Without dead ends: 1890 [2024-12-02 14:20:14,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:20:14,122 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 665 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:20:14,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1398 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:20:14,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-12-02 14:20:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1462. [2024-12-02 14:20:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1287 states have (on average 1.4001554001554002) internal successors, (1802), 1289 states have internal predecessors, (1802), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:20:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2130 transitions. [2024-12-02 14:20:14,227 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2130 transitions. Word has length 282 [2024-12-02 14:20:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:20:14,227 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 2130 transitions. [2024-12-02 14:20:14,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:20:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2130 transitions. [2024-12-02 14:20:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:20:14,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:20:14,229 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:14,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:20:14,229 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:20:14,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:20:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1323293499, now seen corresponding path program 1 times [2024-12-02 14:20:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:20:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986474876] [2024-12-02 14:20:14,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:20:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:20:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:20:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:20:14,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:20:14,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986474876] [2024-12-02 14:20:14,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986474876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:20:14,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:20:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:20:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619407677] [2024-12-02 14:20:14,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:20:14,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:20:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:20:14,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:20:14,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:20:14,303 INFO L87 Difference]: Start difference. First operand 1462 states and 2130 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:20:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:20:14,395 INFO L93 Difference]: Finished difference Result 2438 states and 3565 transitions. [2024-12-02 14:20:14,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:20:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-12-02 14:20:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:20:14,400 INFO L225 Difference]: With dead ends: 2438 [2024-12-02 14:20:14,400 INFO L226 Difference]: Without dead ends: 1606 [2024-12-02 14:20:14,402 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 14:20:14,402 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 10 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:20:14,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 415 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:20:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-12-02 14:20:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1456. [2024-12-02 14:20:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1281 states have (on average 1.375487900078064) internal successors, (1762), 1283 states have internal predecessors, (1762), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:20:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2090 transitions. [2024-12-02 14:20:14,496 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2090 transitions. Word has length 282 [2024-12-02 14:20:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:20:14,496 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2090 transitions. [2024-12-02 14:20:14,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:20:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2090 transitions. [2024-12-02 14:20:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:20:14,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:20:14,498 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:14,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:20:14,498 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:20:14,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:20:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash 110525577, now seen corresponding path program 1 times [2024-12-02 14:20:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:20:14,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124072860] [2024-12-02 14:20:14,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:20:14,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:20:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:21:11,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124072860] [2024-12-02 14:21:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124072860] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:11,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:21:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331062954] [2024-12-02 14:21:11,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:11,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:21:11,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:11,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:21:11,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:21:11,072 INFO L87 Difference]: Start difference. First operand 1456 states and 2090 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:21:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:14,119 INFO L93 Difference]: Finished difference Result 1822 states and 2554 transitions. [2024-12-02 14:21:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:21:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-12-02 14:21:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:14,123 INFO L225 Difference]: With dead ends: 1822 [2024-12-02 14:21:14,123 INFO L226 Difference]: Without dead ends: 1820 [2024-12-02 14:21:14,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:21:14,124 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 471 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:21:14,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1436 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 14:21:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2024-12-02 14:21:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1506. [2024-12-02 14:21:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1331 states have (on average 1.3764087152516904) internal successors, (1832), 1333 states have internal predecessors, (1832), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:21:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2160 transitions. [2024-12-02 14:21:14,222 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2160 transitions. Word has length 282 [2024-12-02 14:21:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:14,222 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2160 transitions. [2024-12-02 14:21:14,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:21:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2160 transitions. [2024-12-02 14:21:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:21:14,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:14,224 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:14,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:21:14,224 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:21:14,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1281812821, now seen corresponding path program 1 times [2024-12-02 14:21:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:14,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144634758] [2024-12-02 14:21:14,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:21:29,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:29,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144634758] [2024-12-02 14:21:29,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144634758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:29,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:29,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:21:29,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417364021] [2024-12-02 14:21:29,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:29,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:21:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:29,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:21:29,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:21:29,814 INFO L87 Difference]: Start difference. First operand 1506 states and 2160 transitions. Second operand has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:38,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:38,505 INFO L93 Difference]: Finished difference Result 2880 states and 4142 transitions. [2024-12-02 14:21:38,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:21:38,506 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-12-02 14:21:38,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:38,510 INFO L225 Difference]: With dead ends: 2880 [2024-12-02 14:21:38,510 INFO L226 Difference]: Without dead ends: 2204 [2024-12-02 14:21:38,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:21:38,512 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 622 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:21:38,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1557 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 14:21:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2024-12-02 14:21:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1414. [2024-12-02 14:21:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1239 states have (on average 1.3688458434221147) internal successors, (1696), 1241 states have internal predecessors, (1696), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:21:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2024 transitions. [2024-12-02 14:21:38,610 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2024 transitions. Word has length 282 [2024-12-02 14:21:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:38,611 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2024 transitions. [2024-12-02 14:21:38,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2024 transitions. [2024-12-02 14:21:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:21:38,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:38,612 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:38,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:21:38,612 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:21:38,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:38,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1238147113, now seen corresponding path program 1 times [2024-12-02 14:21:38,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165609054] [2024-12-02 14:21:38,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:21:43,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:43,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165609054] [2024-12-02 14:21:43,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165609054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:43,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:43,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:21:43,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668853913] [2024-12-02 14:21:43,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:43,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:21:43,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:43,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:21:43,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:21:43,169 INFO L87 Difference]: Start difference. First operand 1414 states and 2024 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:47,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:47,982 INFO L93 Difference]: Finished difference Result 2464 states and 3560 transitions. [2024-12-02 14:21:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:21:47,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-12-02 14:21:47,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:47,987 INFO L225 Difference]: With dead ends: 2464 [2024-12-02 14:21:47,987 INFO L226 Difference]: Without dead ends: 1816 [2024-12-02 14:21:47,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:21:47,989 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 299 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:21:47,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1273 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 14:21:47,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2024-12-02 14:21:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1390. [2024-12-02 14:21:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1215 states have (on average 1.362962962962963) internal successors, (1656), 1217 states have internal predecessors, (1656), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:21:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1984 transitions. [2024-12-02 14:21:48,087 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1984 transitions. Word has length 282 [2024-12-02 14:21:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:48,087 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 1984 transitions. [2024-12-02 14:21:48,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1984 transitions. [2024-12-02 14:21:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:21:48,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:48,089 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:48,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:21:48,089 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:21:48,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1961871191, now seen corresponding path program 1 times [2024-12-02 14:21:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:48,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802750210] [2024-12-02 14:21:48,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:21:53,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:53,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802750210] [2024-12-02 14:21:53,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802750210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:53,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:53,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:21:53,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413826738] [2024-12-02 14:21:53,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:53,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:21:53,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:53,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:21:53,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:21:53,627 INFO L87 Difference]: Start difference. First operand 1390 states and 1984 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:57,396 INFO L93 Difference]: Finished difference Result 2492 states and 3531 transitions. [2024-12-02 14:21:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:21:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 282 [2024-12-02 14:21:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:57,400 INFO L225 Difference]: With dead ends: 2492 [2024-12-02 14:21:57,401 INFO L226 Difference]: Without dead ends: 1796 [2024-12-02 14:21:57,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:21:57,402 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 638 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:21:57,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1223 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:21:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-12-02 14:21:57,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1426. [2024-12-02 14:21:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1251 states have (on average 1.3621103117505995) internal successors, (1704), 1253 states have internal predecessors, (1704), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:21:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2032 transitions. [2024-12-02 14:21:57,502 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2032 transitions. Word has length 282 [2024-12-02 14:21:57,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:57,503 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2032 transitions. [2024-12-02 14:21:57,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:21:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2032 transitions. [2024-12-02 14:21:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-02 14:21:57,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:57,504 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:57,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:21:57,504 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:21:57,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:57,504 INFO L85 PathProgramCache]: Analyzing trace with hash -558088743, now seen corresponding path program 1 times [2024-12-02 14:21:57,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:57,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189888584] [2024-12-02 14:21:57,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:57,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:05,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:05,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189888584] [2024-12-02 14:22:05,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189888584] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:05,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:05,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:22:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493121149] [2024-12-02 14:22:05,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:05,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:22:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:05,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:22:05,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:22:05,124 INFO L87 Difference]: Start difference. First operand 1426 states and 2032 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:22:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:09,634 INFO L93 Difference]: Finished difference Result 2542 states and 3605 transitions. [2024-12-02 14:22:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:22:09,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 282 [2024-12-02 14:22:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:09,638 INFO L225 Difference]: With dead ends: 2542 [2024-12-02 14:22:09,638 INFO L226 Difference]: Without dead ends: 1866 [2024-12-02 14:22:09,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:22:09,640 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 398 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:09,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1599 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 14:22:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-12-02 14:22:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1454. [2024-12-02 14:22:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1279 states have (on average 1.3635652853792024) internal successors, (1744), 1281 states have internal predecessors, (1744), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2072 transitions. [2024-12-02 14:22:09,740 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2072 transitions. Word has length 282 [2024-12-02 14:22:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:09,740 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 2072 transitions. [2024-12-02 14:22:09,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:22:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2072 transitions. [2024-12-02 14:22:09,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-02 14:22:09,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:09,741 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:09,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:22:09,742 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:09,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:09,742 INFO L85 PathProgramCache]: Analyzing trace with hash 213592448, now seen corresponding path program 1 times [2024-12-02 14:22:09,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:09,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453299512] [2024-12-02 14:22:09,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:09,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:10,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:10,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453299512] [2024-12-02 14:22:10,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453299512] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:10,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:10,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:22:10,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915943269] [2024-12-02 14:22:10,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:10,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:22:10,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:10,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:22:10,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:22:10,161 INFO L87 Difference]: Start difference. First operand 1454 states and 2072 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:10,887 INFO L93 Difference]: Finished difference Result 2160 states and 3134 transitions. [2024-12-02 14:22:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:22:10,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2024-12-02 14:22:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:10,894 INFO L225 Difference]: With dead ends: 2160 [2024-12-02 14:22:10,894 INFO L226 Difference]: Without dead ends: 1508 [2024-12-02 14:22:10,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:22:10,896 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 170 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:10,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 907 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:22:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-12-02 14:22:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1450. [2024-12-02 14:22:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1275 states have (on average 1.3584313725490196) internal successors, (1732), 1277 states have internal predecessors, (1732), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:11,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2060 transitions. [2024-12-02 14:22:11,072 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2060 transitions. Word has length 283 [2024-12-02 14:22:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:11,073 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2060 transitions. [2024-12-02 14:22:11,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2060 transitions. [2024-12-02 14:22:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-02 14:22:11,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:11,087 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:11,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 14:22:11,087 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:11,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1114654974, now seen corresponding path program 1 times [2024-12-02 14:22:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:11,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319420708] [2024-12-02 14:22:11,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:11,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319420708] [2024-12-02 14:22:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319420708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:11,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:11,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:22:11,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702235002] [2024-12-02 14:22:11,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:11,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:22:11,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:11,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:22:11,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:22:11,561 INFO L87 Difference]: Start difference. First operand 1450 states and 2060 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:12,037 INFO L93 Difference]: Finished difference Result 2324 states and 3316 transitions. [2024-12-02 14:22:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:22:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2024-12-02 14:22:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:12,040 INFO L225 Difference]: With dead ends: 2324 [2024-12-02 14:22:12,040 INFO L226 Difference]: Without dead ends: 1506 [2024-12-02 14:22:12,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:22:12,042 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 167 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:12,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 646 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:22:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-12-02 14:22:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1448. [2024-12-02 14:22:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1273 states have (on average 1.3574234092694422) internal successors, (1728), 1275 states have internal predecessors, (1728), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2056 transitions. [2024-12-02 14:22:12,142 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2056 transitions. Word has length 283 [2024-12-02 14:22:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:12,143 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2056 transitions. [2024-12-02 14:22:12,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2056 transitions. [2024-12-02 14:22:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-12-02 14:22:12,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:12,144 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:12,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 14:22:12,144 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:12,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash -615513067, now seen corresponding path program 1 times [2024-12-02 14:22:12,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:12,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564460057] [2024-12-02 14:22:12,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:12,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:14,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:14,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564460057] [2024-12-02 14:22:14,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564460057] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:14,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:14,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:22:14,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631774858] [2024-12-02 14:22:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:14,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:22:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:14,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:22:14,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:22:14,639 INFO L87 Difference]: Start difference. First operand 1448 states and 2056 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:16,974 INFO L93 Difference]: Finished difference Result 2556 states and 3603 transitions. [2024-12-02 14:22:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:22:16,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 284 [2024-12-02 14:22:16,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:16,976 INFO L225 Difference]: With dead ends: 2556 [2024-12-02 14:22:16,976 INFO L226 Difference]: Without dead ends: 1468 [2024-12-02 14:22:16,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:22:16,978 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 262 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:16,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1104 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:22:16,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-12-02 14:22:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1288. [2024-12-02 14:22:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1113 states have (on average 1.3548966756513927) internal successors, (1508), 1115 states have internal predecessors, (1508), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1836 transitions. [2024-12-02 14:22:17,082 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1836 transitions. Word has length 284 [2024-12-02 14:22:17,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:17,082 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 1836 transitions. [2024-12-02 14:22:17,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:17,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1836 transitions. [2024-12-02 14:22:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-12-02 14:22:17,083 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:17,083 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:17,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 14:22:17,084 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:17,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1159494295, now seen corresponding path program 1 times [2024-12-02 14:22:17,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:17,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799957785] [2024-12-02 14:22:17,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:17,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:24,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:24,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799957785] [2024-12-02 14:22:24,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799957785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:24,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:24,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:22:24,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670291650] [2024-12-02 14:22:24,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:24,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:22:24,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:24,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:22:24,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:22:24,131 INFO L87 Difference]: Start difference. First operand 1288 states and 1836 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:28,460 INFO L93 Difference]: Finished difference Result 2362 states and 3336 transitions. [2024-12-02 14:22:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:22:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 284 [2024-12-02 14:22:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:28,463 INFO L225 Difference]: With dead ends: 2362 [2024-12-02 14:22:28,463 INFO L226 Difference]: Without dead ends: 1714 [2024-12-02 14:22:28,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:22:28,464 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 267 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:28,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1488 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:22:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-12-02 14:22:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1256. [2024-12-02 14:22:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1081 states have (on average 1.3580018501387605) internal successors, (1468), 1083 states have internal predecessors, (1468), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1796 transitions. [2024-12-02 14:22:28,570 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1796 transitions. Word has length 284 [2024-12-02 14:22:28,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:28,570 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1796 transitions. [2024-12-02 14:22:28,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1796 transitions. [2024-12-02 14:22:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-12-02 14:22:28,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:28,571 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:28,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 14:22:28,571 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:28,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash -745280078, now seen corresponding path program 1 times [2024-12-02 14:22:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646056816] [2024-12-02 14:22:28,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646056816] [2024-12-02 14:22:28,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646056816] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:28,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:28,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:22:28,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950175486] [2024-12-02 14:22:28,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:28,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:22:28,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:28,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:22:28,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:22:28,818 INFO L87 Difference]: Start difference. First operand 1256 states and 1796 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:29,458 INFO L93 Difference]: Finished difference Result 1982 states and 2878 transitions. [2024-12-02 14:22:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:22:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 286 [2024-12-02 14:22:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:29,460 INFO L225 Difference]: With dead ends: 1982 [2024-12-02 14:22:29,460 INFO L226 Difference]: Without dead ends: 1330 [2024-12-02 14:22:29,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:22:29,462 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 176 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:29,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 928 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:22:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2024-12-02 14:22:29,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1248. [2024-12-02 14:22:29,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1073 states have (on average 1.3569431500465983) internal successors, (1456), 1075 states have internal predecessors, (1456), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:29,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1784 transitions. [2024-12-02 14:22:29,568 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1784 transitions. Word has length 286 [2024-12-02 14:22:29,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:29,569 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1784 transitions. [2024-12-02 14:22:29,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:29,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1784 transitions. [2024-12-02 14:22:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-12-02 14:22:29,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:29,570 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:29,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 14:22:29,570 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:29,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1074327546, now seen corresponding path program 1 times [2024-12-02 14:22:29,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:29,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88139343] [2024-12-02 14:22:29,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:29,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:29,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:29,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88139343] [2024-12-02 14:22:29,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88139343] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:29,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:29,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:22:29,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674220515] [2024-12-02 14:22:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:29,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:22:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:29,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:22:29,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:22:29,650 INFO L87 Difference]: Start difference. First operand 1248 states and 1784 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:29,837 INFO L93 Difference]: Finished difference Result 2114 states and 3084 transitions. [2024-12-02 14:22:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:22:29,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 287 [2024-12-02 14:22:29,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:29,840 INFO L225 Difference]: With dead ends: 2114 [2024-12-02 14:22:29,840 INFO L226 Difference]: Without dead ends: 1442 [2024-12-02 14:22:29,841 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 14:22:29,841 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 36 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:29,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 398 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:22:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2024-12-02 14:22:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1304. [2024-12-02 14:22:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1129 states have (on average 1.3658104517271923) internal successors, (1542), 1131 states have internal predecessors, (1542), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1870 transitions. [2024-12-02 14:22:29,948 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1870 transitions. Word has length 287 [2024-12-02 14:22:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:29,948 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1870 transitions. [2024-12-02 14:22:29,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1870 transitions. [2024-12-02 14:22:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-12-02 14:22:29,950 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:29,950 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:29,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 14:22:29,950 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:29,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:29,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1322532855, now seen corresponding path program 1 times [2024-12-02 14:22:29,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:29,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054092498] [2024-12-02 14:22:29,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:29,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:22:32,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:32,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054092498] [2024-12-02 14:22:32,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054092498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:32,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:32,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:22:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102946782] [2024-12-02 14:22:32,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:32,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:22:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:32,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:22:32,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:22:32,869 INFO L87 Difference]: Start difference. First operand 1304 states and 1870 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:36,472 INFO L93 Difference]: Finished difference Result 2214 states and 3190 transitions. [2024-12-02 14:22:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:22:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-12-02 14:22:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:36,475 INFO L225 Difference]: With dead ends: 2214 [2024-12-02 14:22:36,475 INFO L226 Difference]: Without dead ends: 1418 [2024-12-02 14:22:36,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:22:36,476 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 410 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:36,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1537 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:22:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-12-02 14:22:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1324. [2024-12-02 14:22:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1149 states have (on average 1.359442993907746) internal successors, (1562), 1151 states have internal predecessors, (1562), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:22:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1890 transitions. [2024-12-02 14:22:36,591 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1890 transitions. Word has length 289 [2024-12-02 14:22:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:36,591 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 1890 transitions. [2024-12-02 14:22:36,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:22:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1890 transitions. [2024-12-02 14:22:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-12-02 14:22:36,592 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:36,592 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:36,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 14:22:36,592 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:36,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:36,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1951366087, now seen corresponding path program 1 times [2024-12-02 14:22:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:36,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968451170] [2024-12-02 14:22:36,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:36,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:23:29,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:29,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968451170] [2024-12-02 14:23:29,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968451170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:29,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:29,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:23:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87722894] [2024-12-02 14:23:29,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:29,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:23:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:29,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:23:29,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:23:29,514 INFO L87 Difference]: Start difference. First operand 1324 states and 1890 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:23:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:35,095 INFO L93 Difference]: Finished difference Result 1618 states and 2206 transitions. [2024-12-02 14:23:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 14:23:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 289 [2024-12-02 14:23:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:35,098 INFO L225 Difference]: With dead ends: 1618 [2024-12-02 14:23:35,098 INFO L226 Difference]: Without dead ends: 1616 [2024-12-02 14:23:35,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=380, Invalid=1690, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 14:23:35,099 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 557 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:35,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1584 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 14:23:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-12-02 14:23:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1354. [2024-12-02 14:23:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1179 states have (on average 1.3553859202714165) internal successors, (1598), 1181 states have internal predecessors, (1598), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:23:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1926 transitions. [2024-12-02 14:23:35,231 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1926 transitions. Word has length 289 [2024-12-02 14:23:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:35,231 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1926 transitions. [2024-12-02 14:23:35,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:23:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1926 transitions. [2024-12-02 14:23:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-12-02 14:23:35,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:35,232 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:35,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 14:23:35,233 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:35,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2013405701, now seen corresponding path program 1 times [2024-12-02 14:23:35,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:35,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474480711] [2024-12-02 14:23:35,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:24:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:24:29,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:24:29,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474480711] [2024-12-02 14:24:29,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474480711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:24:29,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:24:29,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:24:29,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803084976] [2024-12-02 14:24:29,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:24:29,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:24:29,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:24:29,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:24:29,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:24:29,963 INFO L87 Difference]: Start difference. First operand 1354 states and 1926 transitions. Second operand has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:24:39,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:24:39,554 INFO L93 Difference]: Finished difference Result 1722 states and 2319 transitions. [2024-12-02 14:24:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 14:24:39,555 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-12-02 14:24:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:24:39,558 INFO L225 Difference]: With dead ends: 1722 [2024-12-02 14:24:39,558 INFO L226 Difference]: Without dead ends: 1720 [2024-12-02 14:24:39,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=375, Invalid=1695, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 14:24:39,559 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 378 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:24:39,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1786 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 14:24:39,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-12-02 14:24:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1384. [2024-12-02 14:24:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1209 states have (on average 1.3515301902398678) internal successors, (1634), 1211 states have internal predecessors, (1634), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:24:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1962 transitions. [2024-12-02 14:24:39,681 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1962 transitions. Word has length 289 [2024-12-02 14:24:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:24:39,682 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 1962 transitions. [2024-12-02 14:24:39,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:24:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1962 transitions. [2024-12-02 14:24:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-12-02 14:24:39,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:24:39,683 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 14:24:39,683 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:24:39,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:24:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2054288393, now seen corresponding path program 1 times [2024-12-02 14:24:39,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:24:39,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258064221] [2024-12-02 14:24:39,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:24:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:24:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:24:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:24:40,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:24:40,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258064221] [2024-12-02 14:24:40,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258064221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:24:40,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:24:40,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:24:40,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859471535] [2024-12-02 14:24:40,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:24:40,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:24:40,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:24:40,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:24:40,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:24:40,323 INFO L87 Difference]: Start difference. First operand 1384 states and 1962 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:24:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:24:42,042 INFO L93 Difference]: Finished difference Result 2378 states and 3372 transitions. [2024-12-02 14:24:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:24:42,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 289 [2024-12-02 14:24:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:24:42,045 INFO L225 Difference]: With dead ends: 2378 [2024-12-02 14:24:42,045 INFO L226 Difference]: Without dead ends: 1582 [2024-12-02 14:24:42,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:24:42,046 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 216 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:24:42,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1352 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:24:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2024-12-02 14:24:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1408. [2024-12-02 14:24:42,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1233 states have (on average 1.3446877534468775) internal successors, (1658), 1235 states have internal predecessors, (1658), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:24:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1986 transitions. [2024-12-02 14:24:42,179 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1986 transitions. Word has length 289 [2024-12-02 14:24:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:24:42,179 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1986 transitions. [2024-12-02 14:24:42,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:24:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1986 transitions. [2024-12-02 14:24:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-12-02 14:24:42,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:24:42,180 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:42,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 14:24:42,181 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:24:42,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:24:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2099388924, now seen corresponding path program 1 times [2024-12-02 14:24:42,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:24:42,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971450888] [2024-12-02 14:24:42,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:24:42,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:24:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:25:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:34,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971450888] [2024-12-02 14:25:34,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971450888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:34,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:34,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:25:34,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167115779] [2024-12-02 14:25:34,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:34,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:25:34,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:34,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:25:34,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:25:34,536 INFO L87 Difference]: Start difference. First operand 1408 states and 1986 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:25:40,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:40,628 INFO L93 Difference]: Finished difference Result 1638 states and 2227 transitions. [2024-12-02 14:25:40,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 14:25:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 290 [2024-12-02 14:25:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:40,631 INFO L225 Difference]: With dead ends: 1638 [2024-12-02 14:25:40,631 INFO L226 Difference]: Without dead ends: 1636 [2024-12-02 14:25:40,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 14:25:40,632 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 506 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:40,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1928 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 14:25:40,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-12-02 14:25:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1402. [2024-12-02 14:25:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1227 states have (on average 1.3431132844335778) internal successors, (1648), 1229 states have internal predecessors, (1648), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:25:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1976 transitions. [2024-12-02 14:25:40,787 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1976 transitions. Word has length 290 [2024-12-02 14:25:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:40,787 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1976 transitions. [2024-12-02 14:25:40,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:25:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1976 transitions. [2024-12-02 14:25:40,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-12-02 14:25:40,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:40,788 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:25:40,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 14:25:40,789 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:40,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:40,789 INFO L85 PathProgramCache]: Analyzing trace with hash -272350338, now seen corresponding path program 1 times [2024-12-02 14:25:40,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:40,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439876821] [2024-12-02 14:25:40,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:40,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:26:32,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:32,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439876821] [2024-12-02 14:26:32,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439876821] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:26:32,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:26:32,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:26:32,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091579151] [2024-12-02 14:26:32,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:26:32,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:26:32,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:32,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:26:32,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:26:32,250 INFO L87 Difference]: Start difference. First operand 1402 states and 1976 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:26:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:26:38,278 INFO L93 Difference]: Finished difference Result 1704 states and 2294 transitions. [2024-12-02 14:26:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 14:26:38,278 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 290 [2024-12-02 14:26:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:26:38,281 INFO L225 Difference]: With dead ends: 1704 [2024-12-02 14:26:38,281 INFO L226 Difference]: Without dead ends: 1702 [2024-12-02 14:26:38,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 14:26:38,282 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 438 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:26:38,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1762 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 14:26:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-12-02 14:26:38,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1396. [2024-12-02 14:26:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1221 states have (on average 1.3415233415233416) internal successors, (1638), 1223 states have internal predecessors, (1638), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:26:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1966 transitions. [2024-12-02 14:26:38,407 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1966 transitions. Word has length 290 [2024-12-02 14:26:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:26:38,407 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1966 transitions. [2024-12-02 14:26:38,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:26:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1966 transitions. [2024-12-02 14:26:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 14:26:38,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:26:38,408 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:26:38,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 14:26:38,408 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:26:38,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash 694672478, now seen corresponding path program 1 times [2024-12-02 14:26:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706774975] [2024-12-02 14:26:38,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:27:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706774975] [2024-12-02 14:27:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706774975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:27:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985773422] [2024-12-02 14:27:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:33,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:27:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:33,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:27:33,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:27:33,594 INFO L87 Difference]: Start difference. First operand 1396 states and 1966 transitions. Second operand has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:27:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:36,836 INFO L93 Difference]: Finished difference Result 1554 states and 2134 transitions. [2024-12-02 14:27:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:27:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 293 [2024-12-02 14:27:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:36,839 INFO L225 Difference]: With dead ends: 1554 [2024-12-02 14:27:36,839 INFO L226 Difference]: Without dead ends: 1552 [2024-12-02 14:27:36,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 14:27:36,840 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 421 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:36,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1665 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:27:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-12-02 14:27:36,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1398. [2024-12-02 14:27:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1223 states have (on average 1.3426001635322977) internal successors, (1642), 1225 states have internal predecessors, (1642), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:27:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1970 transitions. [2024-12-02 14:27:36,967 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1970 transitions. Word has length 293 [2024-12-02 14:27:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:36,967 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1970 transitions. [2024-12-02 14:27:36,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:27:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1970 transitions. [2024-12-02 14:27:36,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 14:27:36,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:36,969 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:36,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 14:27:36,969 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:36,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:36,970 INFO L85 PathProgramCache]: Analyzing trace with hash 756712092, now seen corresponding path program 1 times [2024-12-02 14:27:36,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:36,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248176042] [2024-12-02 14:27:36,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:36,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:27:42,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:42,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248176042] [2024-12-02 14:27:42,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248176042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:42,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:42,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:27:42,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924025733] [2024-12-02 14:27:42,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:42,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:27:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:42,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:27:42,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:27:42,831 INFO L87 Difference]: Start difference. First operand 1398 states and 1970 transitions. Second operand has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:27:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:47,907 INFO L93 Difference]: Finished difference Result 1590 states and 2175 transitions. [2024-12-02 14:27:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:27:47,908 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 293 [2024-12-02 14:27:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:47,910 INFO L225 Difference]: With dead ends: 1590 [2024-12-02 14:27:47,910 INFO L226 Difference]: Without dead ends: 1588 [2024-12-02 14:27:47,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 14:27:47,911 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 292 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:47,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1982 Invalid, 2379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 14:27:47,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-12-02 14:27:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1400. [2024-12-02 14:27:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1225 states have (on average 1.343673469387755) internal successors, (1646), 1227 states have internal predecessors, (1646), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:27:48,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1974 transitions. [2024-12-02 14:27:48,037 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1974 transitions. Word has length 293 [2024-12-02 14:27:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:48,037 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 1974 transitions. [2024-12-02 14:27:48,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:27:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1974 transitions. [2024-12-02 14:27:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 14:27:48,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:48,038 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:48,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 14:27:48,039 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:48,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:48,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1677066784, now seen corresponding path program 1 times [2024-12-02 14:27:48,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:48,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148337849] [2024-12-02 14:27:48,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:48,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:27:48,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:48,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148337849] [2024-12-02 14:27:48,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148337849] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:48,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:48,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:27:48,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142832194] [2024-12-02 14:27:48,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:48,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:27:48,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:48,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:27:48,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:27:48,651 INFO L87 Difference]: Start difference. First operand 1400 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:27:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:49,722 INFO L93 Difference]: Finished difference Result 2310 states and 3290 transitions. [2024-12-02 14:27:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:27:49,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 293 [2024-12-02 14:27:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:49,725 INFO L225 Difference]: With dead ends: 2310 [2024-12-02 14:27:49,725 INFO L226 Difference]: Without dead ends: 1432 [2024-12-02 14:27:49,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:27:49,727 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 193 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:49,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1020 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:27:49,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-12-02 14:27:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1318. [2024-12-02 14:27:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1143 states have (on average 1.352580927384077) internal successors, (1546), 1145 states have internal predecessors, (1546), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:27:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1874 transitions. [2024-12-02 14:27:49,880 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1874 transitions. Word has length 293 [2024-12-02 14:27:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:49,880 INFO L471 AbstractCegarLoop]: Abstraction has 1318 states and 1874 transitions. [2024-12-02 14:27:49,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-12-02 14:27:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1874 transitions. [2024-12-02 14:27:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-02 14:27:49,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:49,883 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:49,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 14:27:49,883 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:49,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:49,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1796592709, now seen corresponding path program 1 times [2024-12-02 14:27:49,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:49,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311785361] [2024-12-02 14:27:49,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:49,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:28:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 14:28:49,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:28:49,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311785361] [2024-12-02 14:28:49,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311785361] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:28:49,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:28:49,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:28:49,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14398547] [2024-12-02 14:28:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:28:49,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:28:49,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:28:49,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:28:49,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:28:49,888 INFO L87 Difference]: Start difference. First operand 1318 states and 1874 transitions. Second operand has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:28:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:28:53,560 INFO L93 Difference]: Finished difference Result 1446 states and 2008 transitions. [2024-12-02 14:28:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:28:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 294 [2024-12-02 14:28:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:28:53,563 INFO L225 Difference]: With dead ends: 1446 [2024-12-02 14:28:53,563 INFO L226 Difference]: Without dead ends: 1444 [2024-12-02 14:28:53,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=241, Invalid=949, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:28:53,563 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 369 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:28:53,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1830 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:28:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-12-02 14:28:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1300. [2024-12-02 14:28:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1125 states have (on average 1.3546666666666667) internal successors, (1524), 1127 states have internal predecessors, (1524), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 14:28:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1852 transitions. [2024-12-02 14:28:53,696 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1852 transitions. Word has length 294 [2024-12-02 14:28:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:28:53,697 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1852 transitions. [2024-12-02 14:28:53,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:28:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1852 transitions. [2024-12-02 14:28:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-02 14:28:53,698 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:28:53,698 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:28:53,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 14:28:53,698 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:28:53,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:28:53,699 INFO L85 PathProgramCache]: Analyzing trace with hash -575146553, now seen corresponding path program 1 times [2024-12-02 14:28:53,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:28:53,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334362494] [2024-12-02 14:28:53,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:28:53,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:28:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat