./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:40:31,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:40:31,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:40:31,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:40:31,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:40:31,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:40:31,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:40:31,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:40:31,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:40:31,483 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:40:31,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:40:31,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:40:31,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:40:31,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:40:31,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:40:31,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:40:31,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:40:31,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:40:31,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:40:31,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:40:31,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:40:31,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:40:31,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:40:31,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:40:31,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:40:31,487 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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 -> 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 [2024-12-02 14:40:31,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:40:31,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:40:31,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:40:31,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:40:31,696 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:40:31,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:40:34,295 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/03bf770e5/e7e0e7aeae3e4a6cbc97b9ca5ea7e70c/FLAGb3817da19 [2024-12-02 14:40:34,524 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:40:34,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:40:34,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/03bf770e5/e7e0e7aeae3e4a6cbc97b9ca5ea7e70c/FLAGb3817da19 [2024-12-02 14:40:34,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/03bf770e5/e7e0e7aeae3e4a6cbc97b9ca5ea7e70c [2024-12-02 14:40:34,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:40:34,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:40:34,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:40:34,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:40:34,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:40:34,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:40:34" (1/1) ... [2024-12-02 14:40:34,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aebc6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:34, skipping insertion in model container [2024-12-02 14:40:34,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:40:34" (1/1) ... [2024-12-02 14:40:34,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:40:35,001 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-12-02 14:40:35,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:40:35,059 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:40:35,067 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-12-02 14:40:35,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:40:35,103 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:40:35,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35 WrapperNode [2024-12-02 14:40:35,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:40:35,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:40:35,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:40:35,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:40:35,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,147 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2024-12-02 14:40:35,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:40:35,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:40:35,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:40:35,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:40:35,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,172 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 14:40:35,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:40:35,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:40:35,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:40:35,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:40:35,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (1/1) ... [2024-12-02 14:40:35,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:40:35,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:40:35,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:40:35,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:40:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:40:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:40:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:40:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:40:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:40:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:40:35,305 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:40:35,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:40:35,590 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-02 14:40:35,590 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:40:35,599 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:40:35,600 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:40:35,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:40:35 BoogieIcfgContainer [2024-12-02 14:40:35,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:40:35,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:40:35,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:40:35,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:40:35,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:40:34" (1/3) ... [2024-12-02 14:40:35,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e472eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:40:35, skipping insertion in model container [2024-12-02 14:40:35,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:40:35" (2/3) ... [2024-12-02 14:40:35,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e472eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:40:35, skipping insertion in model container [2024-12-02 14:40:35,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:40:35" (3/3) ... [2024-12-02 14:40:35,608 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:40:35,619 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:40:35,620 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-10.i that has 2 procedures, 74 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:40:35,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:40:35,690 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;@fdd95f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:40:35,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:40:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 54 states have internal predecessors, (74), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 14:40:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 14:40:35,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:40:35,705 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:35,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:40:35,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:40:35,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1915142532, now seen corresponding path program 1 times [2024-12-02 14:40:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:40:35,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188455143] [2024-12-02 14:40:35,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:40:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:40:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:40:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:40:36,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:40:36,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188455143] [2024-12-02 14:40:36,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188455143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:40:36,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:40:36,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:40:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965309810] [2024-12-02 14:40:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:40:36,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:40:36,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:40:36,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:40:36,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:40:36,365 INFO L87 Difference]: Start difference. First operand has 74 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 54 states have internal predecessors, (74), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:40:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:40:36,556 INFO L93 Difference]: Finished difference Result 209 states and 357 transitions. [2024-12-02 14:40:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:40:36,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2024-12-02 14:40:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:40:36,566 INFO L225 Difference]: With dead ends: 209 [2024-12-02 14:40:36,566 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 14:40:36,569 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 14:40:36,572 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 72 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:40:36,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 384 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:40:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 14:40:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 104. [2024-12-02 14:40:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 65 states have internal predecessors, (82), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 14:40:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 154 transitions. [2024-12-02 14:40:36,623 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 154 transitions. Word has length 122 [2024-12-02 14:40:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:40:36,624 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 154 transitions. [2024-12-02 14:40:36,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:40:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 154 transitions. [2024-12-02 14:40:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:40:36,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:40:36,627 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:36,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:40:36,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:40:36,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:40:36,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2009744545, now seen corresponding path program 1 times [2024-12-02 14:40:36,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:40:36,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486343783] [2024-12-02 14:40:36,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:40:36,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:40:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:40:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:40:52,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:40:52,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486343783] [2024-12-02 14:40:52,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486343783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:40:52,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:40:52,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:40:52,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107098018] [2024-12-02 14:40:52,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:40:52,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:40:52,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:40:52,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:40:52,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:40:52,858 INFO L87 Difference]: Start difference. First operand 104 states and 154 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:40:54,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:40:54,386 INFO L93 Difference]: Finished difference Result 341 states and 493 transitions. [2024-12-02 14:40:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:40:54,387 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:40:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:40:54,389 INFO L225 Difference]: With dead ends: 341 [2024-12-02 14:40:54,389 INFO L226 Difference]: Without dead ends: 274 [2024-12-02 14:40:54,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:40:54,390 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 701 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:40:54,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 522 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:40:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-12-02 14:40:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 187. [2024-12-02 14:40:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 14:40:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-12-02 14:40:54,420 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 123 [2024-12-02 14:40:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:40:54,421 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-12-02 14:40:54,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:40:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-12-02 14:40:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:40:54,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:40:54,423 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:54,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:40:54,423 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:40:54,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:40:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1329686175, now seen corresponding path program 1 times [2024-12-02 14:40:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:40:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484177127] [2024-12-02 14:40:54,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:40:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:40:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:41:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:41:57,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:41:57,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484177127] [2024-12-02 14:41:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484177127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:41:57,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:41:57,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:41:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329711290] [2024-12-02 14:41:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:41:57,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:41:57,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:41:57,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:41:57,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:41:57,038 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:41:58,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:41:58,841 INFO L93 Difference]: Finished difference Result 343 states and 492 transitions. [2024-12-02 14:41:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:41:58,842 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:41:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:41:58,845 INFO L225 Difference]: With dead ends: 343 [2024-12-02 14:41:58,846 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 14:41:58,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:41:58,847 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 476 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:41:58,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 528 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:41:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 14:41:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 187. [2024-12-02 14:41:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 14:41:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-12-02 14:41:58,868 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 123 [2024-12-02 14:41:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:41:58,869 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-12-02 14:41:58,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:41:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-12-02 14:41:58,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:41:58,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:41:58,871 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:58,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:41:58,872 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:41:58,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:41:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1137097311, now seen corresponding path program 1 times [2024-12-02 14:41:58,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:41:58,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696453233] [2024-12-02 14:41:58,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:41:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:41:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:42:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:42:15,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:42:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696453233] [2024-12-02 14:42:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696453233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:42:15,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:42:15,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:42:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824245333] [2024-12-02 14:42:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:42:15,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:42:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:42:15,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:42:15,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:42:15,133 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:42:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:42:17,442 INFO L93 Difference]: Finished difference Result 385 states and 538 transitions. [2024-12-02 14:42:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:42:17,442 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 123 [2024-12-02 14:42:17,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:42:17,444 INFO L225 Difference]: With dead ends: 385 [2024-12-02 14:42:17,444 INFO L226 Difference]: Without dead ends: 318 [2024-12-02 14:42:17,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2024-12-02 14:42:17,445 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 641 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:42:17,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 679 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:42:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-12-02 14:42:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 208. [2024-12-02 14:42:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 146 states have internal predecessors, (185), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 14:42:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 293 transitions. [2024-12-02 14:42:17,464 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 293 transitions. Word has length 123 [2024-12-02 14:42:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:42:17,464 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 293 transitions. [2024-12-02 14:42:17,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:42:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 293 transitions. [2024-12-02 14:42:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:42:17,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:42:17,466 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:17,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:42:17,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:42:17,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:42:17,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1395262749, now seen corresponding path program 1 times [2024-12-02 14:42:17,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:42:17,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797000560] [2024-12-02 14:42:17,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:42:17,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:42:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:42:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:42:35,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:42:35,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797000560] [2024-12-02 14:42:35,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797000560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:42:35,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:42:35,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:42:35,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868210200] [2024-12-02 14:42:35,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:42:35,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:42:35,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:42:35,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:42:35,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:42:35,699 INFO L87 Difference]: Start difference. First operand 208 states and 293 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:38,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:42:38,666 INFO L93 Difference]: Finished difference Result 487 states and 671 transitions. [2024-12-02 14:42:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:42:38,667 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:42:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:42:38,669 INFO L225 Difference]: With dead ends: 487 [2024-12-02 14:42:38,669 INFO L226 Difference]: Without dead ends: 420 [2024-12-02 14:42:38,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 14:42:38,670 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 726 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:42:38,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 647 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:42:38,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-12-02 14:42:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 208. [2024-12-02 14:42:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 146 states have internal predecessors, (185), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 14:42:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 293 transitions. [2024-12-02 14:42:38,690 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 293 transitions. Word has length 123 [2024-12-02 14:42:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:42:38,691 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 293 transitions. [2024-12-02 14:42:38,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 293 transitions. [2024-12-02 14:42:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:42:38,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:42:38,692 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:38,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:42:38,693 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:42:38,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:42:38,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1944212767, now seen corresponding path program 1 times [2024-12-02 14:42:38,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:42:38,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473502645] [2024-12-02 14:42:38,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:42:38,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:42:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:42:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:42:51,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:42:51,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473502645] [2024-12-02 14:42:51,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473502645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:42:51,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:42:51,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:42:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837512145] [2024-12-02 14:42:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:42:51,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:42:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:42:51,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:42:51,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:42:51,339 INFO L87 Difference]: Start difference. First operand 208 states and 293 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:42:52,170 INFO L93 Difference]: Finished difference Result 460 states and 642 transitions. [2024-12-02 14:42:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:42:52,171 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:42:52,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:42:52,172 INFO L225 Difference]: With dead ends: 460 [2024-12-02 14:42:52,173 INFO L226 Difference]: Without dead ends: 295 [2024-12-02 14:42:52,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:42:52,174 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 411 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:42:52,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 564 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:42:52,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-12-02 14:42:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 210. [2024-12-02 14:42:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 147 states have (on average 1.272108843537415) internal successors, (187), 148 states have internal predecessors, (187), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 14:42:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 295 transitions. [2024-12-02 14:42:52,190 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 295 transitions. Word has length 123 [2024-12-02 14:42:52,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:42:52,190 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 295 transitions. [2024-12-02 14:42:52,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 295 transitions. [2024-12-02 14:42:52,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:42:52,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:42:52,191 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:52,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:42:52,192 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:42:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:42:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash 291078045, now seen corresponding path program 1 times [2024-12-02 14:42:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:42:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402093018] [2024-12-02 14:42:52,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:42:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:42:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:42:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:42:58,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:42:58,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402093018] [2024-12-02 14:42:58,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402093018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:42:58,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:42:58,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:42:58,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930588459] [2024-12-02 14:42:58,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:42:58,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:42:58,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:42:58,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:42:58,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:42:58,066 INFO L87 Difference]: Start difference. First operand 210 states and 295 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:42:59,307 INFO L93 Difference]: Finished difference Result 422 states and 595 transitions. [2024-12-02 14:42:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:42:59,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:42:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:42:59,309 INFO L225 Difference]: With dead ends: 422 [2024-12-02 14:42:59,309 INFO L226 Difference]: Without dead ends: 355 [2024-12-02 14:42:59,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:42:59,310 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 360 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:42:59,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 552 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:42:59,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-12-02 14:42:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 294. [2024-12-02 14:42:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 211 states have internal predecessors, (270), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 14:42:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2024-12-02 14:42:59,333 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 123 [2024-12-02 14:42:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:42:59,334 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2024-12-02 14:42:59,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:42:59,334 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2024-12-02 14:42:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:42:59,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:42:59,335 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:59,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:42:59,335 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:42:59,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:42:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash 971136415, now seen corresponding path program 1 times [2024-12-02 14:42:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:42:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422731079] [2024-12-02 14:42:59,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:42:59,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:42:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:43:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:43:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:43:13,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422731079] [2024-12-02 14:43:13,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422731079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:43:13,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:43:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:43:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912553603] [2024-12-02 14:43:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:43:13,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:43:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:43:13,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:43:13,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:43:13,487 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:43:14,823 INFO L93 Difference]: Finished difference Result 452 states and 632 transitions. [2024-12-02 14:43:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:43:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:43:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:43:14,827 INFO L225 Difference]: With dead ends: 452 [2024-12-02 14:43:14,827 INFO L226 Difference]: Without dead ends: 385 [2024-12-02 14:43:14,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:43:14,828 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 577 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:43:14,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 558 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:43:14,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-12-02 14:43:14,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 294. [2024-12-02 14:43:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 211 states have internal predecessors, (270), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 14:43:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 414 transitions. [2024-12-02 14:43:14,852 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 414 transitions. Word has length 123 [2024-12-02 14:43:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:43:14,853 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 414 transitions. [2024-12-02 14:43:14,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 414 transitions. [2024-12-02 14:43:14,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:43:14,854 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:43:14,854 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:14,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:43:14,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:43:14,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:43:14,855 INFO L85 PathProgramCache]: Analyzing trace with hash -857047395, now seen corresponding path program 1 times [2024-12-02 14:43:14,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:43:14,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561718737] [2024-12-02 14:43:14,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:43:14,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:43:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:43:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:43:29,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:43:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561718737] [2024-12-02 14:43:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561718737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:43:29,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:43:29,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:43:29,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695484905] [2024-12-02 14:43:29,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:43:29,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:43:29,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:43:29,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:43:29,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:43:29,424 INFO L87 Difference]: Start difference. First operand 294 states and 414 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:43:30,644 INFO L93 Difference]: Finished difference Result 398 states and 560 transitions. [2024-12-02 14:43:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:43:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:43:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:43:30,647 INFO L225 Difference]: With dead ends: 398 [2024-12-02 14:43:30,647 INFO L226 Difference]: Without dead ends: 331 [2024-12-02 14:43:30,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:43:30,648 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 301 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:43:30,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 604 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:43:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-12-02 14:43:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 278. [2024-12-02 14:43:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 194 states have (on average 1.268041237113402) internal successors, (246), 195 states have internal predecessors, (246), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 14:43:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 390 transitions. [2024-12-02 14:43:30,661 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 390 transitions. Word has length 123 [2024-12-02 14:43:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:43:30,662 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 390 transitions. [2024-12-02 14:43:30,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 390 transitions. [2024-12-02 14:43:30,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 14:43:30,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:43:30,663 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:30,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:43:30,663 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:43:30,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:43:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash -49931939, now seen corresponding path program 1 times [2024-12-02 14:43:30,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:43:30,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835395184] [2024-12-02 14:43:30,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:43:30,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:43:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:43:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:43:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:43:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835395184] [2024-12-02 14:43:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835395184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:43:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:43:42,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:43:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744003396] [2024-12-02 14:43:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:43:42,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:43:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:43:42,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:43:42,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:43:42,574 INFO L87 Difference]: Start difference. First operand 278 states and 390 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:43:43,399 INFO L93 Difference]: Finished difference Result 483 states and 676 transitions. [2024-12-02 14:43:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:43:43,399 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-12-02 14:43:43,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:43:43,402 INFO L225 Difference]: With dead ends: 483 [2024-12-02 14:43:43,402 INFO L226 Difference]: Without dead ends: 327 [2024-12-02 14:43:43,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:43:43,403 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 259 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:43:43,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 601 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:43:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-12-02 14:43:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 280. [2024-12-02 14:43:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 196 states have (on average 1.2653061224489797) internal successors, (248), 197 states have internal predecessors, (248), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 14:43:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 392 transitions. [2024-12-02 14:43:43,425 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 392 transitions. Word has length 123 [2024-12-02 14:43:43,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:43:43,426 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 392 transitions. [2024-12-02 14:43:43,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:43:43,426 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 392 transitions. [2024-12-02 14:43:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:43:43,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:43:43,427 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:43,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:43:43,427 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:43:43,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:43:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1627607207, now seen corresponding path program 1 times [2024-12-02 14:43:43,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:43:43,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630447538] [2024-12-02 14:43:43,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:43:43,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:43:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:43:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:43:57,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:43:57,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630447538] [2024-12-02 14:43:57,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630447538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:43:57,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:43:57,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:43:57,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425248579] [2024-12-02 14:43:57,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:43:57,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:43:57,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:43:57,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:43:57,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:43:57,933 INFO L87 Difference]: Start difference. First operand 280 states and 392 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:44:01,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:44:01,595 INFO L93 Difference]: Finished difference Result 526 states and 729 transitions. [2024-12-02 14:44:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:44:01,596 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-12-02 14:44:01,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:44:01,597 INFO L225 Difference]: With dead ends: 526 [2024-12-02 14:44:01,597 INFO L226 Difference]: Without dead ends: 459 [2024-12-02 14:44:01,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:44:01,598 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 703 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:44:01,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 657 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:44:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-12-02 14:44:01,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 291. [2024-12-02 14:44:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.285024154589372) internal successors, (266), 208 states have internal predecessors, (266), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 14:44:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 410 transitions. [2024-12-02 14:44:01,611 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 410 transitions. Word has length 124 [2024-12-02 14:44:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:44:01,611 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 410 transitions. [2024-12-02 14:44:01,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:44:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 410 transitions. [2024-12-02 14:44:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:44:01,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:44:01,612 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:44:01,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:44:01,613 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:44:01,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:44:01,613 INFO L85 PathProgramCache]: Analyzing trace with hash 147400155, now seen corresponding path program 1 times [2024-12-02 14:44:01,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:44:01,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578276554] [2024-12-02 14:44:01,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:44:01,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:44:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:44:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:44:01,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:44:01,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578276554] [2024-12-02 14:44:01,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578276554] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:44:01,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:44:01,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:44:01,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584649616] [2024-12-02 14:44:01,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:44:01,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:44:01,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:44:01,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:44:01,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:44:01,726 INFO L87 Difference]: Start difference. First operand 291 states and 410 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:44:01,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:44:01,783 INFO L93 Difference]: Finished difference Result 408 states and 572 transitions. [2024-12-02 14:44:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:44:01,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:44:01,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:44:01,785 INFO L225 Difference]: With dead ends: 408 [2024-12-02 14:44:01,785 INFO L226 Difference]: Without dead ends: 341 [2024-12-02 14:44:01,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:44:01,786 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 49 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:44:01,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 224 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:44:01,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-12-02 14:44:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 336. [2024-12-02 14:44:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 241 states have (on average 1.2697095435684647) internal successors, (306), 243 states have internal predecessors, (306), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 14:44:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 466 transitions. [2024-12-02 14:44:01,799 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 466 transitions. Word has length 124 [2024-12-02 14:44:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:44:01,800 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 466 transitions. [2024-12-02 14:44:01,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:44:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 466 transitions. [2024-12-02 14:44:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:44:01,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:44:01,801 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:44:01,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:44:01,801 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:44:01,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:44:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2020634217, now seen corresponding path program 1 times [2024-12-02 14:44:01,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:44:01,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013563895] [2024-12-02 14:44:01,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:44:01,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:44:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:45:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:45:09,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:45:09,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013563895] [2024-12-02 14:45:09,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013563895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:45:09,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:45:09,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:45:09,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67431853] [2024-12-02 14:45:09,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:45:09,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:45:09,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:45:09,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:45:09,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:45:09,810 INFO L87 Difference]: Start difference. First operand 336 states and 466 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:45:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:45:14,559 INFO L93 Difference]: Finished difference Result 680 states and 935 transitions. [2024-12-02 14:45:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:45:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-12-02 14:45:14,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:45:14,562 INFO L225 Difference]: With dead ends: 680 [2024-12-02 14:45:14,562 INFO L226 Difference]: Without dead ends: 580 [2024-12-02 14:45:14,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:45:14,564 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 1353 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:45:14,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 561 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:45:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-02 14:45:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 352. [2024-12-02 14:45:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 258 states have internal predecessors, (331), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 14:45:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 491 transitions. [2024-12-02 14:45:14,589 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 491 transitions. Word has length 124 [2024-12-02 14:45:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:45:14,590 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 491 transitions. [2024-12-02 14:45:14,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:45:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 491 transitions. [2024-12-02 14:45:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:45:14,591 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:45:14,591 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:14,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:45:14,591 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:45:14,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:45:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1435209817, now seen corresponding path program 1 times [2024-12-02 14:45:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:45:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332520019] [2024-12-02 14:45:14,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:45:14,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:45:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:49:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332520019] [2024-12-02 14:49:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332520019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:10,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:10,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:49:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25801782] [2024-12-02 14:49:10,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:10,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:49:10,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:10,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:49:10,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:49:10,283 INFO L87 Difference]: Start difference. First operand 352 states and 491 transitions. Second operand has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:49:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:21,504 INFO L93 Difference]: Finished difference Result 737 states and 1016 transitions. [2024-12-02 14:49:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 14:49:21,504 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-12-02 14:49:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:21,506 INFO L225 Difference]: With dead ends: 737 [2024-12-02 14:49:21,506 INFO L226 Difference]: Without dead ends: 637 [2024-12-02 14:49:21,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=383, Invalid=1257, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 14:49:21,507 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 1191 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:21,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 721 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:49:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-12-02 14:49:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 366. [2024-12-02 14:49:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 271 states have (on average 1.3025830258302582) internal successors, (353), 272 states have internal predecessors, (353), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 14:49:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 513 transitions. [2024-12-02 14:49:21,524 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 513 transitions. Word has length 124 [2024-12-02 14:49:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:21,524 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 513 transitions. [2024-12-02 14:49:21,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:49:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 513 transitions. [2024-12-02 14:49:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:49:21,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:21,525 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:21,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:49:21,525 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:21,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1084750117, now seen corresponding path program 1 times [2024-12-02 14:49:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356458712] [2024-12-02 14:49:21,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:49:21,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:21,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356458712] [2024-12-02 14:49:21,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356458712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:21,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:21,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:49:21,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655484995] [2024-12-02 14:49:21,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:21,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:49:21,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:21,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:49:21,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:21,626 INFO L87 Difference]: Start difference. First operand 366 states and 513 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:49:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:21,723 INFO L93 Difference]: Finished difference Result 813 states and 1136 transitions. [2024-12-02 14:49:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:49:21,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:49:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:21,726 INFO L225 Difference]: With dead ends: 813 [2024-12-02 14:49:21,726 INFO L226 Difference]: Without dead ends: 519 [2024-12-02 14:49:21,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:21,728 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 73 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:21,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 282 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:49:21,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-12-02 14:49:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 466. [2024-12-02 14:49:21,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.3104395604395604) internal successors, (477), 367 states have internal predecessors, (477), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 14:49:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 645 transitions. [2024-12-02 14:49:21,749 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 645 transitions. Word has length 124 [2024-12-02 14:49:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:21,750 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 645 transitions. [2024-12-02 14:49:21,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:49:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 645 transitions. [2024-12-02 14:49:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:49:21,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:21,751 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:21,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:49:21,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:21,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:21,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2080554075, now seen corresponding path program 1 times [2024-12-02 14:49:21,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:21,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929428697] [2024-12-02 14:49:21,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:21,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:49:21,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:21,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929428697] [2024-12-02 14:49:21,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929428697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:21,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:21,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:49:21,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576034859] [2024-12-02 14:49:21,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:21,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:49:21,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:21,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:49:21,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:49:21,844 INFO L87 Difference]: Start difference. First operand 466 states and 645 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:49:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:21,923 INFO L93 Difference]: Finished difference Result 1069 states and 1468 transitions. [2024-12-02 14:49:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:49:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:49:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:21,925 INFO L225 Difference]: With dead ends: 1069 [2024-12-02 14:49:21,925 INFO L226 Difference]: Without dead ends: 676 [2024-12-02 14:49:21,926 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 14:49:21,926 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 39 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:21,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 351 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-12-02 14:49:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 664. [2024-12-02 14:49:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 534 states have (on average 1.2865168539325842) internal successors, (687), 543 states have internal predecessors, (687), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:49:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 895 transitions. [2024-12-02 14:49:21,955 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 895 transitions. Word has length 124 [2024-12-02 14:49:21,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:21,955 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 895 transitions. [2024-12-02 14:49:21,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:49:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 895 transitions. [2024-12-02 14:49:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:49:21,956 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:21,956 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:21,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:49:21,956 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:21,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash 685985177, now seen corresponding path program 1 times [2024-12-02 14:49:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:21,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36383917] [2024-12-02 14:49:21,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:49:49,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36383917] [2024-12-02 14:49:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36383917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:49,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:49,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:49:49,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944718900] [2024-12-02 14:49:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:49,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:49:49,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:49,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:49:49,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:49:49,691 INFO L87 Difference]: Start difference. First operand 664 states and 895 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:49:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:51,544 INFO L93 Difference]: Finished difference Result 1504 states and 2016 transitions. [2024-12-02 14:49:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:49:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-12-02 14:49:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:51,548 INFO L225 Difference]: With dead ends: 1504 [2024-12-02 14:49:51,548 INFO L226 Difference]: Without dead ends: 913 [2024-12-02 14:49:51,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:49:51,550 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 364 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:51,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 700 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:49:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-12-02 14:49:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 662. [2024-12-02 14:49:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 532 states have (on average 1.2857142857142858) internal successors, (684), 541 states have internal predecessors, (684), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:49:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 892 transitions. [2024-12-02 14:49:51,605 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 892 transitions. Word has length 124 [2024-12-02 14:49:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:51,605 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 892 transitions. [2024-12-02 14:49:51,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:49:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 892 transitions. [2024-12-02 14:49:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:49:51,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:51,606 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:51,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:49:51,607 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:51,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 978416347, now seen corresponding path program 1 times [2024-12-02 14:49:51,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:51,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169499442] [2024-12-02 14:49:51,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:51,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:50:04,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:04,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169499442] [2024-12-02 14:50:04,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169499442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:04,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:04,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:50:04,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543336099] [2024-12-02 14:50:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:04,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:50:04,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:04,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:50:04,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:50:04,144 INFO L87 Difference]: Start difference. First operand 662 states and 892 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:50:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:05,466 INFO L93 Difference]: Finished difference Result 1397 states and 1868 transitions. [2024-12-02 14:50:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:50:05,467 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:50:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:05,470 INFO L225 Difference]: With dead ends: 1397 [2024-12-02 14:50:05,470 INFO L226 Difference]: Without dead ends: 1129 [2024-12-02 14:50:05,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:50:05,471 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 509 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:05,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 460 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:50:05,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-12-02 14:50:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 681. [2024-12-02 14:50:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 551 states have (on average 1.2921960072595282) internal successors, (712), 560 states have internal predecessors, (712), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:50:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 920 transitions. [2024-12-02 14:50:05,508 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 920 transitions. Word has length 124 [2024-12-02 14:50:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:05,508 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 920 transitions. [2024-12-02 14:50:05,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:50:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 920 transitions. [2024-12-02 14:50:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:50:05,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:05,510 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:05,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:50:05,510 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:05,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash 585389337, now seen corresponding path program 1 times [2024-12-02 14:50:05,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:05,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213636445] [2024-12-02 14:50:05,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:05,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:50:19,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:19,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213636445] [2024-12-02 14:50:19,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213636445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:19,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:19,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:50:19,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039761407] [2024-12-02 14:50:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:19,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:50:19,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:19,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:50:19,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:50:19,540 INFO L87 Difference]: Start difference. First operand 681 states and 920 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:50:21,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:21,781 INFO L93 Difference]: Finished difference Result 1282 states and 1718 transitions. [2024-12-02 14:50:21,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:50:21,781 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-12-02 14:50:21,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:21,785 INFO L225 Difference]: With dead ends: 1282 [2024-12-02 14:50:21,785 INFO L226 Difference]: Without dead ends: 1014 [2024-12-02 14:50:21,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-12-02 14:50:21,787 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 418 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:21,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 553 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:50:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-12-02 14:50:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 684. [2024-12-02 14:50:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 554 states have (on average 1.2942238267148014) internal successors, (717), 563 states have internal predecessors, (717), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:50:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 925 transitions. [2024-12-02 14:50:21,848 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 925 transitions. Word has length 124 [2024-12-02 14:50:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:21,848 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 925 transitions. [2024-12-02 14:50:21,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:50:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 925 transitions. [2024-12-02 14:50:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:50:21,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:21,850 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:21,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:50:21,850 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:21,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1934570597, now seen corresponding path program 1 times [2024-12-02 14:50:21,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:21,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780318036] [2024-12-02 14:50:21,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:50:31,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780318036] [2024-12-02 14:50:31,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780318036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:31,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:31,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:50:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272972464] [2024-12-02 14:50:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:31,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:50:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:31,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:50:31,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:50:31,374 INFO L87 Difference]: Start difference. First operand 684 states and 925 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:50:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:32,106 INFO L93 Difference]: Finished difference Result 1185 states and 1595 transitions. [2024-12-02 14:50:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:50:32,107 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:50:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:32,110 INFO L225 Difference]: With dead ends: 1185 [2024-12-02 14:50:32,110 INFO L226 Difference]: Without dead ends: 917 [2024-12-02 14:50:32,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:50:32,111 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 278 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:32,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 510 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:50:32,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-12-02 14:50:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 687. [2024-12-02 14:50:32,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 557 states have (on average 1.296229802513465) internal successors, (722), 566 states have internal predecessors, (722), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:50:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 930 transitions. [2024-12-02 14:50:32,162 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 930 transitions. Word has length 124 [2024-12-02 14:50:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:32,162 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 930 transitions. [2024-12-02 14:50:32,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:50:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 930 transitions. [2024-12-02 14:50:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:50:32,163 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:32,163 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:50:32,163 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:32,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:32,163 INFO L85 PathProgramCache]: Analyzing trace with hash -253733925, now seen corresponding path program 1 times [2024-12-02 14:50:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224610889] [2024-12-02 14:50:32,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:00,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:00,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224610889] [2024-12-02 14:51:00,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224610889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:00,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:00,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:51:00,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801798626] [2024-12-02 14:51:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:00,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:51:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:00,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:51:00,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:51:00,623 INFO L87 Difference]: Start difference. First operand 687 states and 930 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:02,692 INFO L93 Difference]: Finished difference Result 1129 states and 1524 transitions. [2024-12-02 14:51:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:51:02,692 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-12-02 14:51:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:02,694 INFO L225 Difference]: With dead ends: 1129 [2024-12-02 14:51:02,694 INFO L226 Difference]: Without dead ends: 861 [2024-12-02 14:51:02,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:51:02,696 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 297 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:02,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 612 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:51:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-12-02 14:51:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 631. [2024-12-02 14:51:02,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 501 states have (on average 1.2694610778443114) internal successors, (636), 511 states have internal predecessors, (636), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 94 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 14:51:02,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 844 transitions. [2024-12-02 14:51:02,755 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 844 transitions. Word has length 124 [2024-12-02 14:51:02,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:02,755 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 844 transitions. [2024-12-02 14:51:02,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 844 transitions. [2024-12-02 14:51:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:51:02,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:02,756 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:02,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:51:02,757 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:02,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:02,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1521273437, now seen corresponding path program 1 times [2024-12-02 14:51:02,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:02,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544271937] [2024-12-02 14:51:02,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:02,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:04,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:04,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544271937] [2024-12-02 14:51:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544271937] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:51:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191310248] [2024-12-02 14:51:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:04,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:51:04,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:04,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:51:04,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:51:04,414 INFO L87 Difference]: Start difference. First operand 631 states and 844 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:51:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:07,079 INFO L93 Difference]: Finished difference Result 1376 states and 1852 transitions. [2024-12-02 14:51:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:51:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2024-12-02 14:51:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:07,082 INFO L225 Difference]: With dead ends: 1376 [2024-12-02 14:51:07,082 INFO L226 Difference]: Without dead ends: 1108 [2024-12-02 14:51:07,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:51:07,084 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 631 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:07,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 677 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:51:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-12-02 14:51:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 594. [2024-12-02 14:51:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 481 states have (on average 1.2848232848232848) internal successors, (618), 489 states have internal predecessors, (618), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 80 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 14:51:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 794 transitions. [2024-12-02 14:51:07,123 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 794 transitions. Word has length 124 [2024-12-02 14:51:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:07,123 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 794 transitions. [2024-12-02 14:51:07,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:51:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 794 transitions. [2024-12-02 14:51:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 14:51:07,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:07,124 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:07,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:51:07,124 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:07,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1002958565, now seen corresponding path program 1 times [2024-12-02 14:51:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:07,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072548277] [2024-12-02 14:51:07,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:20,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:20,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072548277] [2024-12-02 14:51:20,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072548277] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:20,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:20,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:51:20,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129611785] [2024-12-02 14:51:20,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:20,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:51:20,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:20,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:51:20,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:51:20,415 INFO L87 Difference]: Start difference. First operand 594 states and 794 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:21,230 INFO L93 Difference]: Finished difference Result 1198 states and 1604 transitions. [2024-12-02 14:51:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:51:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-12-02 14:51:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:21,233 INFO L225 Difference]: With dead ends: 1198 [2024-12-02 14:51:21,233 INFO L226 Difference]: Without dead ends: 726 [2024-12-02 14:51:21,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:51:21,234 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 189 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:21,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 533 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:51:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-12-02 14:51:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 505. [2024-12-02 14:51:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 415 states have (on average 1.2963855421686747) internal successors, (538), 423 states have internal predecessors, (538), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 62 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 14:51:21,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 678 transitions. [2024-12-02 14:51:21,266 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 678 transitions. Word has length 124 [2024-12-02 14:51:21,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:21,266 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 678 transitions. [2024-12-02 14:51:21,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:21,266 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 678 transitions. [2024-12-02 14:51:21,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 14:51:21,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:21,267 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:21,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:51:21,267 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:21,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1005825276, now seen corresponding path program 1 times [2024-12-02 14:51:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:21,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689029506] [2024-12-02 14:51:21,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:31,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689029506] [2024-12-02 14:51:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689029506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:51:31,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167361822] [2024-12-02 14:51:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:31,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:51:31,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:31,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:51:31,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:51:31,809 INFO L87 Difference]: Start difference. First operand 505 states and 678 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:33,334 INFO L93 Difference]: Finished difference Result 909 states and 1222 transitions. [2024-12-02 14:51:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:51:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 125 [2024-12-02 14:51:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:33,337 INFO L225 Difference]: With dead ends: 909 [2024-12-02 14:51:33,337 INFO L226 Difference]: Without dead ends: 623 [2024-12-02 14:51:33,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:51:33,337 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 405 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:33,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 514 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:51:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-12-02 14:51:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 502. [2024-12-02 14:51:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 412 states have (on average 1.2936893203883495) internal successors, (533), 420 states have internal predecessors, (533), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 62 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 14:51:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 673 transitions. [2024-12-02 14:51:33,369 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 673 transitions. Word has length 125 [2024-12-02 14:51:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:33,370 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 673 transitions. [2024-12-02 14:51:33,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 673 transitions. [2024-12-02 14:51:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:33,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:33,370 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:33,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:51:33,371 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:33,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:33,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1205148972, now seen corresponding path program 1 times [2024-12-02 14:51:33,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:33,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672936404] [2024-12-02 14:51:33,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:33,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:35,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:35,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672936404] [2024-12-02 14:51:35,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672936404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:35,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:35,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:51:35,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262202260] [2024-12-02 14:51:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:35,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:51:35,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:35,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:51:35,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:51:35,782 INFO L87 Difference]: Start difference. First operand 502 states and 673 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:37,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:37,670 INFO L93 Difference]: Finished difference Result 901 states and 1187 transitions. [2024-12-02 14:51:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:51:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:51:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:37,673 INFO L225 Difference]: With dead ends: 901 [2024-12-02 14:51:37,673 INFO L226 Difference]: Without dead ends: 899 [2024-12-02 14:51:37,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2024-12-02 14:51:37,674 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 411 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:37,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 710 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:51:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-12-02 14:51:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 547. [2024-12-02 14:51:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 447 states have (on average 1.2930648769574944) internal successors, (578), 454 states have internal predecessors, (578), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:51:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 734 transitions. [2024-12-02 14:51:37,728 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 734 transitions. Word has length 126 [2024-12-02 14:51:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:37,728 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 734 transitions. [2024-12-02 14:51:37,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 734 transitions. [2024-12-02 14:51:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:37,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:37,729 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:37,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:51:37,729 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:37,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:37,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1463314410, now seen corresponding path program 1 times [2024-12-02 14:51:37,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:37,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249484064] [2024-12-02 14:51:37,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:37,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:41,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:41,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249484064] [2024-12-02 14:51:41,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249484064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:41,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:41,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:51:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018928569] [2024-12-02 14:51:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:41,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:51:41,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:41,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:51:41,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:51:41,786 INFO L87 Difference]: Start difference. First operand 547 states and 734 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:45,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:45,032 INFO L93 Difference]: Finished difference Result 804 states and 1070 transitions. [2024-12-02 14:51:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:51:45,033 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 126 [2024-12-02 14:51:45,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:45,035 INFO L225 Difference]: With dead ends: 804 [2024-12-02 14:51:45,035 INFO L226 Difference]: Without dead ends: 802 [2024-12-02 14:51:45,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 14:51:45,035 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 628 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:45,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 517 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:51:45,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-12-02 14:51:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 583. [2024-12-02 14:51:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 483 states have (on average 1.308488612836439) internal successors, (632), 490 states have internal predecessors, (632), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:51:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 788 transitions. [2024-12-02 14:51:45,090 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 788 transitions. Word has length 126 [2024-12-02 14:51:45,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:45,090 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 788 transitions. [2024-12-02 14:51:45,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:51:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 788 transitions. [2024-12-02 14:51:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:45,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:45,090 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:45,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:51:45,091 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:45,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1775256020, now seen corresponding path program 1 times [2024-12-02 14:51:45,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:45,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023791395] [2024-12-02 14:51:45,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:47,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:47,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023791395] [2024-12-02 14:51:47,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023791395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:47,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:47,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:51:47,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358267596] [2024-12-02 14:51:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:47,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:51:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:47,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:51:47,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:51:47,566 INFO L87 Difference]: Start difference. First operand 583 states and 788 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:48,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:48,932 INFO L93 Difference]: Finished difference Result 1217 states and 1633 transitions. [2024-12-02 14:51:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:51:48,933 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:51:48,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:48,935 INFO L225 Difference]: With dead ends: 1217 [2024-12-02 14:51:48,935 INFO L226 Difference]: Without dead ends: 912 [2024-12-02 14:51:48,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:51:48,936 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 264 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:48,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 856 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:51:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-12-02 14:51:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 595. [2024-12-02 14:51:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 495 states have (on average 1.3111111111111111) internal successors, (649), 502 states have internal predecessors, (649), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:51:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 805 transitions. [2024-12-02 14:51:48,982 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 805 transitions. Word has length 126 [2024-12-02 14:51:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:48,982 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 805 transitions. [2024-12-02 14:51:48,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 805 transitions. [2024-12-02 14:51:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:48,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:48,983 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:48,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:51:48,983 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:48,984 INFO L85 PathProgramCache]: Analyzing trace with hash -74714706, now seen corresponding path program 1 times [2024-12-02 14:51:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196382676] [2024-12-02 14:51:48,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:51,049 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:51,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:51,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196382676] [2024-12-02 14:51:51,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196382676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:51,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:51,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:51:51,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315827304] [2024-12-02 14:51:51,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:51,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:51:51,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:51,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:51:51,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:51:51,050 INFO L87 Difference]: Start difference. First operand 595 states and 805 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:51,604 INFO L93 Difference]: Finished difference Result 864 states and 1138 transitions. [2024-12-02 14:51:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:51:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:51:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:51,607 INFO L225 Difference]: With dead ends: 864 [2024-12-02 14:51:51,607 INFO L226 Difference]: Without dead ends: 862 [2024-12-02 14:51:51,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:51:51,607 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 110 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:51,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 784 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:51:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-12-02 14:51:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 655. [2024-12-02 14:51:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 555 states have (on average 1.3099099099099099) internal successors, (727), 562 states have internal predecessors, (727), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (78), 71 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:51:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 883 transitions. [2024-12-02 14:51:51,670 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 883 transitions. Word has length 126 [2024-12-02 14:51:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:51,670 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 883 transitions. [2024-12-02 14:51:51,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:51:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 883 transitions. [2024-12-02 14:51:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:51,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:51,671 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:51,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:51:51,671 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:51,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:51,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1239847598, now seen corresponding path program 1 times [2024-12-02 14:51:51,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:51,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721507056] [2024-12-02 14:51:51,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:51,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:51:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721507056] [2024-12-02 14:51:54,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721507056] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:54,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:54,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:51:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670419306] [2024-12-02 14:51:54,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:54,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:51:54,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:54,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:51:54,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:51:54,256 INFO L87 Difference]: Start difference. First operand 655 states and 883 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:51:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:57,343 INFO L93 Difference]: Finished difference Result 1733 states and 2299 transitions. [2024-12-02 14:51:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:51:57,344 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2024-12-02 14:51:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:57,349 INFO L225 Difference]: With dead ends: 1733 [2024-12-02 14:51:57,349 INFO L226 Difference]: Without dead ends: 1392 [2024-12-02 14:51:57,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=222, Invalid=968, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:51:57,350 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 551 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:57,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1094 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:51:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-12-02 14:51:57,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 555. [2024-12-02 14:51:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 463 states have (on average 1.3110151187904968) internal successors, (607), 466 states have internal predecessors, (607), 70 states have call successors, (70), 21 states have call predecessors, (70), 21 states have return successors, (70), 67 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 14:51:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 747 transitions. [2024-12-02 14:51:57,399 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 747 transitions. Word has length 126 [2024-12-02 14:51:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:57,399 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 747 transitions. [2024-12-02 14:51:57,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:51:57,399 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 747 transitions. [2024-12-02 14:51:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:51:57,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:57,400 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:57,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:51:57,400 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:57,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:57,401 INFO L85 PathProgramCache]: Analyzing trace with hash -225629332, now seen corresponding path program 1 times [2024-12-02 14:51:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:57,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76972856] [2024-12-02 14:51:57,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:57,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:00,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:00,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76972856] [2024-12-02 14:52:00,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76972856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:00,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:00,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:52:00,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034283194] [2024-12-02 14:52:00,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:00,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:52:00,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:00,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:52:00,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:52:00,004 INFO L87 Difference]: Start difference. First operand 555 states and 747 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:52:01,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:01,440 INFO L93 Difference]: Finished difference Result 700 states and 937 transitions. [2024-12-02 14:52:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:52:01,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 126 [2024-12-02 14:52:01,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:01,442 INFO L225 Difference]: With dead ends: 700 [2024-12-02 14:52:01,442 INFO L226 Difference]: Without dead ends: 698 [2024-12-02 14:52:01,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:52:01,443 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 185 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:01,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 546 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:52:01,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-12-02 14:52:01,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 621. [2024-12-02 14:52:01,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 518 states have (on average 1.308880308880309) internal successors, (678), 522 states have internal predecessors, (678), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:52:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 834 transitions. [2024-12-02 14:52:01,514 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 834 transitions. Word has length 126 [2024-12-02 14:52:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:01,515 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 834 transitions. [2024-12-02 14:52:01,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:52:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 834 transitions. [2024-12-02 14:52:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:01,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:01,515 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:01,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:52:01,515 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:01,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1088932972, now seen corresponding path program 1 times [2024-12-02 14:52:01,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452198045] [2024-12-02 14:52:01,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:01,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:04,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:04,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452198045] [2024-12-02 14:52:04,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452198045] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:04,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:04,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:52:04,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059176509] [2024-12-02 14:52:04,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:04,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:52:04,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:04,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:52:04,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:52:04,528 INFO L87 Difference]: Start difference. First operand 621 states and 834 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:07,428 INFO L93 Difference]: Finished difference Result 1077 states and 1416 transitions. [2024-12-02 14:52:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:52:07,428 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:52:07,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:07,430 INFO L225 Difference]: With dead ends: 1077 [2024-12-02 14:52:07,430 INFO L226 Difference]: Without dead ends: 1075 [2024-12-02 14:52:07,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=239, Invalid=1021, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 14:52:07,431 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 338 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:07,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 771 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:52:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-12-02 14:52:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 632. [2024-12-02 14:52:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 529 states have (on average 1.3119092627599245) internal successors, (694), 533 states have internal predecessors, (694), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:52:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 850 transitions. [2024-12-02 14:52:07,496 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 850 transitions. Word has length 126 [2024-12-02 14:52:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:07,496 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 850 transitions. [2024-12-02 14:52:07,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 850 transitions. [2024-12-02 14:52:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:07,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:07,497 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:07,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 14:52:07,498 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:07,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash -190930706, now seen corresponding path program 1 times [2024-12-02 14:52:07,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:07,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366786263] [2024-12-02 14:52:07,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:08,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:08,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366786263] [2024-12-02 14:52:08,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366786263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:08,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:08,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:52:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255708201] [2024-12-02 14:52:08,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:08,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:52:08,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:08,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:52:08,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:52:08,832 INFO L87 Difference]: Start difference. First operand 632 states and 850 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:09,679 INFO L93 Difference]: Finished difference Result 1097 states and 1477 transitions. [2024-12-02 14:52:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:52:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:52:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:09,682 INFO L225 Difference]: With dead ends: 1097 [2024-12-02 14:52:09,682 INFO L226 Difference]: Without dead ends: 818 [2024-12-02 14:52:09,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:52:09,682 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:09,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 915 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:52:09,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-12-02 14:52:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 667. [2024-12-02 14:52:09,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 564 states have (on average 1.3120567375886525) internal successors, (740), 568 states have internal predecessors, (740), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:52:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 896 transitions. [2024-12-02 14:52:09,754 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 896 transitions. Word has length 126 [2024-12-02 14:52:09,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:09,754 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 896 transitions. [2024-12-02 14:52:09,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 896 transitions. [2024-12-02 14:52:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:09,755 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:09,755 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:09,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 14:52:09,755 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:09,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:09,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1627850798, now seen corresponding path program 1 times [2024-12-02 14:52:09,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:09,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022282016] [2024-12-02 14:52:09,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:09,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:11,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022282016] [2024-12-02 14:52:11,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022282016] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:11,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:11,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:52:11,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204826528] [2024-12-02 14:52:11,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:11,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:52:11,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:11,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:52:11,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:52:11,698 INFO L87 Difference]: Start difference. First operand 667 states and 896 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:12,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:12,446 INFO L93 Difference]: Finished difference Result 867 states and 1149 transitions. [2024-12-02 14:52:12,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:52:12,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:52:12,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:12,449 INFO L225 Difference]: With dead ends: 867 [2024-12-02 14:52:12,449 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 14:52:12,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:52:12,450 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 195 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:12,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 818 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:52:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 14:52:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 656. [2024-12-02 14:52:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 553 states have (on average 1.305605786618445) internal successors, (722), 557 states have internal predecessors, (722), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:52:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 878 transitions. [2024-12-02 14:52:12,518 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 878 transitions. Word has length 126 [2024-12-02 14:52:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:12,518 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 878 transitions. [2024-12-02 14:52:12,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 878 transitions. [2024-12-02 14:52:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:12,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:12,519 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:12,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 14:52:12,519 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:12,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:12,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1352554194, now seen corresponding path program 1 times [2024-12-02 14:52:12,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:12,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740034145] [2024-12-02 14:52:12,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:15,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:15,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740034145] [2024-12-02 14:52:15,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740034145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:15,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:15,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:52:15,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291514323] [2024-12-02 14:52:15,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:15,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:52:15,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:15,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:52:15,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:52:15,500 INFO L87 Difference]: Start difference. First operand 656 states and 878 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:52:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:17,011 INFO L93 Difference]: Finished difference Result 1131 states and 1509 transitions. [2024-12-02 14:52:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:52:17,011 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2024-12-02 14:52:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:17,015 INFO L225 Difference]: With dead ends: 1131 [2024-12-02 14:52:17,015 INFO L226 Difference]: Without dead ends: 818 [2024-12-02 14:52:17,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:52:17,016 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 364 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:17,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 822 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:52:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-12-02 14:52:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 664. [2024-12-02 14:52:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 561 states have (on average 1.3083778966131907) internal successors, (734), 565 states have internal predecessors, (734), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 14:52:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 890 transitions. [2024-12-02 14:52:17,090 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 890 transitions. Word has length 126 [2024-12-02 14:52:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:17,090 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 890 transitions. [2024-12-02 14:52:17,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:52:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 890 transitions. [2024-12-02 14:52:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:17,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:17,091 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:17,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 14:52:17,091 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:17,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:17,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1662549424, now seen corresponding path program 1 times [2024-12-02 14:52:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:17,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381518946] [2024-12-02 14:52:17,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:17,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381518946] [2024-12-02 14:52:18,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381518946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:18,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:18,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:52:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265203487] [2024-12-02 14:52:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:18,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:52:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:18,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:52:18,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:52:18,347 INFO L87 Difference]: Start difference. First operand 664 states and 890 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:19,515 INFO L93 Difference]: Finished difference Result 1237 states and 1642 transitions. [2024-12-02 14:52:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:52:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:52:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:19,518 INFO L225 Difference]: With dead ends: 1237 [2024-12-02 14:52:19,518 INFO L226 Difference]: Without dead ends: 920 [2024-12-02 14:52:19,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:52:19,519 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 185 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:19,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 996 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:52:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-12-02 14:52:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 722. [2024-12-02 14:52:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 598 states have (on average 1.2876254180602007) internal successors, (770), 603 states have internal predecessors, (770), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 14:52:19,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 958 transitions. [2024-12-02 14:52:19,598 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 958 transitions. Word has length 126 [2024-12-02 14:52:19,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:19,598 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 958 transitions. [2024-12-02 14:52:19,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:19,598 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 958 transitions. [2024-12-02 14:52:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 14:52:19,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:19,599 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:19,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 14:52:19,599 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:19,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:19,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1511634798, now seen corresponding path program 1 times [2024-12-02 14:52:19,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:19,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269912414] [2024-12-02 14:52:19,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:19,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:21,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:21,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269912414] [2024-12-02 14:52:21,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269912414] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:21,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:21,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:52:21,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409957482] [2024-12-02 14:52:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:21,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:52:21,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:21,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:52:21,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:52:21,232 INFO L87 Difference]: Start difference. First operand 722 states and 958 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:22,074 INFO L93 Difference]: Finished difference Result 867 states and 1142 transitions. [2024-12-02 14:52:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:52:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2024-12-02 14:52:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:22,077 INFO L225 Difference]: With dead ends: 867 [2024-12-02 14:52:22,077 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 14:52:22,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:52:22,077 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:22,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 805 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:52:22,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 14:52:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 696. [2024-12-02 14:52:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 582 states have (on average 1.288659793814433) internal successors, (750), 588 states have internal predecessors, (750), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 14:52:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 922 transitions. [2024-12-02 14:52:22,152 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 922 transitions. Word has length 126 [2024-12-02 14:52:22,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:22,152 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 922 transitions. [2024-12-02 14:52:22,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 922 transitions. [2024-12-02 14:52:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 14:52:22,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:22,153 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:22,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 14:52:22,153 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:22,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -102410459, now seen corresponding path program 1 times [2024-12-02 14:52:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:22,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240795571] [2024-12-02 14:52:22,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:22,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:22,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240795571] [2024-12-02 14:52:22,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240795571] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:22,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:22,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:52:22,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697827477] [2024-12-02 14:52:22,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:22,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:52:22,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:22,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:52:22,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:52:22,205 INFO L87 Difference]: Start difference. First operand 696 states and 922 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:22,465 INFO L93 Difference]: Finished difference Result 1531 states and 2024 transitions. [2024-12-02 14:52:22,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:52:22,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-12-02 14:52:22,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:22,468 INFO L225 Difference]: With dead ends: 1531 [2024-12-02 14:52:22,468 INFO L226 Difference]: Without dead ends: 870 [2024-12-02 14:52:22,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:52:22,469 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 65 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:22,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 385 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:52:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-12-02 14:52:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 703. [2024-12-02 14:52:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 589 states have (on average 1.2852292020373515) internal successors, (757), 595 states have internal predecessors, (757), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 14:52:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 929 transitions. [2024-12-02 14:52:22,589 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 929 transitions. Word has length 128 [2024-12-02 14:52:22,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:22,589 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 929 transitions. [2024-12-02 14:52:22,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:22,590 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 929 transitions. [2024-12-02 14:52:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 14:52:22,590 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:22,591 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:22,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 14:52:22,591 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:22,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1494996237, now seen corresponding path program 1 times [2024-12-02 14:52:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138943024] [2024-12-02 14:52:22,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:22,648 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:22,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:22,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138943024] [2024-12-02 14:52:22,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138943024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:22,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:22,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:52:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026456539] [2024-12-02 14:52:22,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:22,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:52:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:22,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:52:22,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:52:22,649 INFO L87 Difference]: Start difference. First operand 703 states and 929 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:22,891 INFO L93 Difference]: Finished difference Result 1699 states and 2253 transitions. [2024-12-02 14:52:22,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:52:22,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-12-02 14:52:22,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:22,895 INFO L225 Difference]: With dead ends: 1699 [2024-12-02 14:52:22,895 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 14:52:22,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:52:22,897 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 67 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:22,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 334 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:52:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 14:52:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 864. [2024-12-02 14:52:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 750 states have (on average 1.308) internal successors, (981), 756 states have internal predecessors, (981), 86 states have call successors, (86), 27 states have call predecessors, (86), 27 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 14:52:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1153 transitions. [2024-12-02 14:52:23,003 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1153 transitions. Word has length 128 [2024-12-02 14:52:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:23,003 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1153 transitions. [2024-12-02 14:52:23,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1153 transitions. [2024-12-02 14:52:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 14:52:23,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:23,004 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:23,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 14:52:23,004 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:23,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:23,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1844978669, now seen corresponding path program 1 times [2024-12-02 14:52:23,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:23,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795722938] [2024-12-02 14:52:23,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:23,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:23,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:23,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795722938] [2024-12-02 14:52:23,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795722938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:23,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:23,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:52:23,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147416618] [2024-12-02 14:52:23,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:23,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:52:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:23,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:52:23,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:52:23,048 INFO L87 Difference]: Start difference. First operand 864 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:23,229 INFO L93 Difference]: Finished difference Result 2170 states and 2871 transitions. [2024-12-02 14:52:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:52:23,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-12-02 14:52:23,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:23,233 INFO L225 Difference]: With dead ends: 2170 [2024-12-02 14:52:23,233 INFO L226 Difference]: Without dead ends: 1341 [2024-12-02 14:52:23,234 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 14:52:23,234 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 55 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:23,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 193 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:52:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-12-02 14:52:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1334. [2024-12-02 14:52:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1164 states have (on average 1.2654639175257731) internal successors, (1473), 1177 states have internal predecessors, (1473), 124 states have call successors, (124), 45 states have call predecessors, (124), 45 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 14:52:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1721 transitions. [2024-12-02 14:52:23,385 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1721 transitions. Word has length 129 [2024-12-02 14:52:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:23,385 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1721 transitions. [2024-12-02 14:52:23,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1721 transitions. [2024-12-02 14:52:23,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:23,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:23,386 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:23,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 14:52:23,386 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:23,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1285604853, now seen corresponding path program 1 times [2024-12-02 14:52:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228932134] [2024-12-02 14:52:23,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:23,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:23,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228932134] [2024-12-02 14:52:23,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228932134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:23,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:23,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:52:23,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374933232] [2024-12-02 14:52:23,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:23,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:52:23,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:23,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:52:23,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:52:23,434 INFO L87 Difference]: Start difference. First operand 1334 states and 1721 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:23,642 INFO L93 Difference]: Finished difference Result 2509 states and 3228 transitions. [2024-12-02 14:52:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:52:23,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:23,648 INFO L225 Difference]: With dead ends: 2509 [2024-12-02 14:52:23,648 INFO L226 Difference]: Without dead ends: 1214 [2024-12-02 14:52:23,649 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 14:52:23,650 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:23,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 190 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:52:23,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-12-02 14:52:23,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1012. [2024-12-02 14:52:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 892 states have (on average 1.2623318385650224) internal successors, (1126), 898 states have internal predecessors, (1126), 86 states have call successors, (86), 33 states have call predecessors, (86), 33 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 14:52:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1298 transitions. [2024-12-02 14:52:23,756 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1298 transitions. Word has length 130 [2024-12-02 14:52:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:23,756 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1298 transitions. [2024-12-02 14:52:23,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1298 transitions. [2024-12-02 14:52:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:23,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:23,758 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:23,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 14:52:23,758 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:23,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:23,758 INFO L85 PathProgramCache]: Analyzing trace with hash -781709524, now seen corresponding path program 1 times [2024-12-02 14:52:23,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:23,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518318461] [2024-12-02 14:52:23,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:23,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:25,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518318461] [2024-12-02 14:52:25,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518318461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:25,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:25,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:52:25,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006983362] [2024-12-02 14:52:25,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:25,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:52:25,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:25,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:52:25,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:52:25,459 INFO L87 Difference]: Start difference. First operand 1012 states and 1298 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:26,376 INFO L93 Difference]: Finished difference Result 1193 states and 1511 transitions. [2024-12-02 14:52:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:52:26,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:26,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:26,379 INFO L225 Difference]: With dead ends: 1193 [2024-12-02 14:52:26,379 INFO L226 Difference]: Without dead ends: 1191 [2024-12-02 14:52:26,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:52:26,379 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 106 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:26,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1211 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:52:26,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-12-02 14:52:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1013. [2024-12-02 14:52:26,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 893 states have (on average 1.2620380739081747) internal successors, (1127), 899 states have internal predecessors, (1127), 86 states have call successors, (86), 33 states have call predecessors, (86), 33 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 14:52:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1299 transitions. [2024-12-02 14:52:26,471 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1299 transitions. Word has length 130 [2024-12-02 14:52:26,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:26,471 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1299 transitions. [2024-12-02 14:52:26,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1299 transitions. [2024-12-02 14:52:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:26,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:26,472 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:26,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 14:52:26,472 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:26,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:26,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1792826774, now seen corresponding path program 1 times [2024-12-02 14:52:26,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:26,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306310997] [2024-12-02 14:52:26,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:26,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:30,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:30,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306310997] [2024-12-02 14:52:30,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306310997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 14:52:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355417936] [2024-12-02 14:52:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:30,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 14:52:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:30,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 14:52:30,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:52:30,190 INFO L87 Difference]: Start difference. First operand 1013 states and 1299 transitions. Second operand has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:35,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:35,651 INFO L93 Difference]: Finished difference Result 1917 states and 2377 transitions. [2024-12-02 14:52:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 14:52:35,652 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:35,655 INFO L225 Difference]: With dead ends: 1917 [2024-12-02 14:52:35,655 INFO L226 Difference]: Without dead ends: 1915 [2024-12-02 14:52:35,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=335, Invalid=1645, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 14:52:35,656 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 605 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:35,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 932 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:52:35,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-12-02 14:52:35,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1056. [2024-12-02 14:52:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 926 states have (on average 1.2613390928725703) internal successors, (1168), 931 states have internal predecessors, (1168), 94 states have call successors, (94), 35 states have call predecessors, (94), 35 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 14:52:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1356 transitions. [2024-12-02 14:52:35,751 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1356 transitions. Word has length 130 [2024-12-02 14:52:35,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:35,751 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1356 transitions. [2024-12-02 14:52:35,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1356 transitions. [2024-12-02 14:52:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:35,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:35,752 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:35,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 14:52:35,752 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:35,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash -207720404, now seen corresponding path program 1 times [2024-12-02 14:52:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585551703] [2024-12-02 14:52:35,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:35,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:37,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:37,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585551703] [2024-12-02 14:52:37,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585551703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:37,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:37,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:52:37,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42303548] [2024-12-02 14:52:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:37,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:52:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:37,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:52:37,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:52:37,204 INFO L87 Difference]: Start difference. First operand 1056 states and 1356 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:38,533 INFO L93 Difference]: Finished difference Result 1899 states and 2424 transitions. [2024-12-02 14:52:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:52:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:38,538 INFO L225 Difference]: With dead ends: 1899 [2024-12-02 14:52:38,538 INFO L226 Difference]: Without dead ends: 1367 [2024-12-02 14:52:38,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:52:38,539 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 165 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:38,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1104 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:52:38,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-12-02 14:52:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1102. [2024-12-02 14:52:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 964 states have (on average 1.2572614107883817) internal successors, (1212), 970 states have internal predecessors, (1212), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 14:52:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1412 transitions. [2024-12-02 14:52:38,654 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1412 transitions. Word has length 130 [2024-12-02 14:52:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:38,655 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1412 transitions. [2024-12-02 14:52:38,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1412 transitions. [2024-12-02 14:52:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:38,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:38,655 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:38,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 14:52:38,656 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:38,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:38,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1924909870, now seen corresponding path program 1 times [2024-12-02 14:52:38,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:38,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478751524] [2024-12-02 14:52:38,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:41,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:41,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478751524] [2024-12-02 14:52:41,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478751524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:41,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:41,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:52:41,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416167134] [2024-12-02 14:52:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:41,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:52:41,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:41,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:52:41,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:52:41,315 INFO L87 Difference]: Start difference. First operand 1102 states and 1412 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:42,115 INFO L93 Difference]: Finished difference Result 1254 states and 1579 transitions. [2024-12-02 14:52:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:52:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:42,118 INFO L225 Difference]: With dead ends: 1254 [2024-12-02 14:52:42,118 INFO L226 Difference]: Without dead ends: 1252 [2024-12-02 14:52:42,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:52:42,119 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 91 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:42,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 982 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:52:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-12-02 14:52:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1123. [2024-12-02 14:52:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 985 states have (on average 1.2527918781725889) internal successors, (1234), 991 states have internal predecessors, (1234), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 14:52:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1434 transitions. [2024-12-02 14:52:42,225 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1434 transitions. Word has length 130 [2024-12-02 14:52:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:42,225 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1434 transitions. [2024-12-02 14:52:42,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1434 transitions. [2024-12-02 14:52:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:42,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:42,226 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:42,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 14:52:42,226 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:42,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:42,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1796068306, now seen corresponding path program 1 times [2024-12-02 14:52:42,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:42,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322758076] [2024-12-02 14:52:42,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:44,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322758076] [2024-12-02 14:52:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322758076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:44,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:44,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:52:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430989032] [2024-12-02 14:52:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:44,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:52:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:44,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:52:44,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:52:44,426 INFO L87 Difference]: Start difference. First operand 1123 states and 1434 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:46,595 INFO L93 Difference]: Finished difference Result 2593 states and 3246 transitions. [2024-12-02 14:52:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:52:46,596 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:46,599 INFO L225 Difference]: With dead ends: 2593 [2024-12-02 14:52:46,600 INFO L226 Difference]: Without dead ends: 2014 [2024-12-02 14:52:46,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:52:46,601 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 249 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:46,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1352 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:52:46,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-12-02 14:52:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1132. [2024-12-02 14:52:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 994 states have (on average 1.2535211267605635) internal successors, (1246), 1000 states have internal predecessors, (1246), 100 states have call successors, (100), 37 states have call predecessors, (100), 37 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 14:52:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1446 transitions. [2024-12-02 14:52:46,719 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1446 transitions. Word has length 130 [2024-12-02 14:52:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:46,719 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1446 transitions. [2024-12-02 14:52:46,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1446 transitions. [2024-12-02 14:52:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:46,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:46,720 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:46,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 14:52:46,720 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:46,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash 696702188, now seen corresponding path program 1 times [2024-12-02 14:52:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762184474] [2024-12-02 14:52:46,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762184474] [2024-12-02 14:52:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762184474] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:51,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-12-02 14:52:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300200812] [2024-12-02 14:52:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:51,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 14:52:51,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:51,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 14:52:51,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:52:51,116 INFO L87 Difference]: Start difference. First operand 1132 states and 1446 transitions. Second operand has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:56,215 INFO L93 Difference]: Finished difference Result 1808 states and 2246 transitions. [2024-12-02 14:52:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 14:52:56,216 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:56,219 INFO L225 Difference]: With dead ends: 1808 [2024-12-02 14:52:56,219 INFO L226 Difference]: Without dead ends: 1806 [2024-12-02 14:52:56,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=537, Invalid=2433, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 14:52:56,220 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 264 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:56,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1238 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:52:56,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2024-12-02 14:52:56,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1331. [2024-12-02 14:52:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1167 states have (on average 1.2390745501285347) internal successors, (1446), 1175 states have internal predecessors, (1446), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 14:52:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1682 transitions. [2024-12-02 14:52:56,376 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1682 transitions. Word has length 130 [2024-12-02 14:52:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:56,376 INFO L471 AbstractCegarLoop]: Abstraction has 1331 states and 1682 transitions. [2024-12-02 14:52:56,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 24 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1682 transitions. [2024-12-02 14:52:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:56,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:56,377 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:56,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 14:52:56,377 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:56,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:56,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1270691308, now seen corresponding path program 1 times [2024-12-02 14:52:56,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:56,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076029362] [2024-12-02 14:52:56,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:52:58,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076029362] [2024-12-02 14:52:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076029362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:58,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:58,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:52:58,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447353027] [2024-12-02 14:52:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:58,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:52:58,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:58,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:52:58,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:52:58,161 INFO L87 Difference]: Start difference. First operand 1331 states and 1682 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:59,276 INFO L93 Difference]: Finished difference Result 1565 states and 1960 transitions. [2024-12-02 14:52:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:52:59,277 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:52:59,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:59,279 INFO L225 Difference]: With dead ends: 1565 [2024-12-02 14:52:59,279 INFO L226 Difference]: Without dead ends: 1563 [2024-12-02 14:52:59,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:52:59,280 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 147 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:59,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 961 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:52:59,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-12-02 14:52:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1342. [2024-12-02 14:52:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1178 states have (on average 1.2419354838709677) internal successors, (1463), 1186 states have internal predecessors, (1463), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 14:52:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1699 transitions. [2024-12-02 14:52:59,415 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1699 transitions. Word has length 130 [2024-12-02 14:52:59,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:59,415 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1699 transitions. [2024-12-02 14:52:59,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:52:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1699 transitions. [2024-12-02 14:52:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:52:59,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:59,416 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:59,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 14:52:59,416 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:59,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash -317656594, now seen corresponding path program 1 times [2024-12-02 14:52:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791940368] [2024-12-02 14:52:59,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:53:05,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:05,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791940368] [2024-12-02 14:53:05,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791940368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:05,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:05,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-12-02 14:53:05,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873768299] [2024-12-02 14:53:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:05,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 14:53:05,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:05,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 14:53:05,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:53:05,477 INFO L87 Difference]: Start difference. First operand 1342 states and 1699 transitions. Second operand has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:53:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:09,645 INFO L93 Difference]: Finished difference Result 1797 states and 2228 transitions. [2024-12-02 14:53:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:53:09,646 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 130 [2024-12-02 14:53:09,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:09,648 INFO L225 Difference]: With dead ends: 1797 [2024-12-02 14:53:09,648 INFO L226 Difference]: Without dead ends: 1795 [2024-12-02 14:53:09,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 14:53:09,649 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 366 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:09,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1230 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 14:53:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-12-02 14:53:09,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1335. [2024-12-02 14:53:09,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1171 states have (on average 1.2433817250213492) internal successors, (1456), 1179 states have internal predecessors, (1456), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 14:53:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1692 transitions. [2024-12-02 14:53:09,792 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1692 transitions. Word has length 130 [2024-12-02 14:53:09,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:09,792 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1692 transitions. [2024-12-02 14:53:09,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 14:53:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1692 transitions. [2024-12-02 14:53:09,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:53:09,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:09,793 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:09,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 14:53:09,793 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:09,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:09,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1652278164, now seen corresponding path program 1 times [2024-12-02 14:53:09,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:09,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429767198] [2024-12-02 14:53:09,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:09,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:53:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429767198] [2024-12-02 14:53:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429767198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:12,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:12,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:53:12,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148012738] [2024-12-02 14:53:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:12,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:53:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:12,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:53:12,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:53:12,853 INFO L87 Difference]: Start difference. First operand 1335 states and 1692 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:53:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:15,244 INFO L93 Difference]: Finished difference Result 1449 states and 1818 transitions. [2024-12-02 14:53:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:53:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2024-12-02 14:53:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:15,247 INFO L225 Difference]: With dead ends: 1449 [2024-12-02 14:53:15,247 INFO L226 Difference]: Without dead ends: 1447 [2024-12-02 14:53:15,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=186, Invalid=806, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:53:15,248 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 274 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:15,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 613 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:53:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-12-02 14:53:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1304. [2024-12-02 14:53:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1140 states have (on average 1.2385964912280703) internal successors, (1412), 1148 states have internal predecessors, (1412), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 14:53:15,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1648 transitions. [2024-12-02 14:53:15,388 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1648 transitions. Word has length 130 [2024-12-02 14:53:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:15,388 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1648 transitions. [2024-12-02 14:53:15,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:53:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1648 transitions. [2024-12-02 14:53:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:53:15,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:15,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:15,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 14:53:15,389 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:15,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1655519696, now seen corresponding path program 1 times [2024-12-02 14:53:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:15,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99685083] [2024-12-02 14:53:15,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:53:17,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:17,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99685083] [2024-12-02 14:53:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99685083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:17,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:17,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:53:17,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297714038] [2024-12-02 14:53:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:17,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:53:17,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:17,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:53:17,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:53:17,793 INFO L87 Difference]: Start difference. First operand 1304 states and 1648 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:19,335 INFO L93 Difference]: Finished difference Result 2216 states and 2788 transitions. [2024-12-02 14:53:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:53:19,335 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:53:19,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:19,338 INFO L225 Difference]: With dead ends: 2216 [2024-12-02 14:53:19,338 INFO L226 Difference]: Without dead ends: 1630 [2024-12-02 14:53:19,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:53:19,340 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 192 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:19,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1147 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:53:19,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-12-02 14:53:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1314. [2024-12-02 14:53:19,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1150 states have (on average 1.2347826086956522) internal successors, (1420), 1158 states have internal predecessors, (1420), 118 states have call successors, (118), 45 states have call predecessors, (118), 45 states have return successors, (118), 110 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 14:53:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1656 transitions. [2024-12-02 14:53:19,481 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1656 transitions. Word has length 130 [2024-12-02 14:53:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:19,482 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1656 transitions. [2024-12-02 14:53:19,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1656 transitions. [2024-12-02 14:53:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:53:19,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:19,483 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:19,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 14:53:19,483 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:19,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash -177107984, now seen corresponding path program 1 times [2024-12-02 14:53:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:19,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675037701] [2024-12-02 14:53:19,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:53:21,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:21,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675037701] [2024-12-02 14:53:21,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675037701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:21,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:21,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:53:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782175311] [2024-12-02 14:53:21,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:21,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:53:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:21,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:53:21,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:53:21,119 INFO L87 Difference]: Start difference. First operand 1314 states and 1656 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:22,217 INFO L93 Difference]: Finished difference Result 1591 states and 1977 transitions. [2024-12-02 14:53:22,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:53:22,217 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2024-12-02 14:53:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:22,220 INFO L225 Difference]: With dead ends: 1591 [2024-12-02 14:53:22,220 INFO L226 Difference]: Without dead ends: 1589 [2024-12-02 14:53:22,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:53:22,220 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 153 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:22,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 903 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:53:22,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2024-12-02 14:53:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1086. [2024-12-02 14:53:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 958 states have (on average 1.2515657620041754) internal successors, (1199), 965 states have internal predecessors, (1199), 92 states have call successors, (92), 35 states have call predecessors, (92), 35 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 14:53:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1383 transitions. [2024-12-02 14:53:22,334 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1383 transitions. Word has length 130 [2024-12-02 14:53:22,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:22,334 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1383 transitions. [2024-12-02 14:53:22,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1383 transitions. [2024-12-02 14:53:22,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 14:53:22,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:22,335 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:22,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 14:53:22,336 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:22,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:22,336 INFO L85 PathProgramCache]: Analyzing trace with hash 673275182, now seen corresponding path program 1 times [2024-12-02 14:53:22,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:22,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844689270] [2024-12-02 14:53:22,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:22,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:53:22,371 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:53:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:53:22,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:53:22,485 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:53:22,486 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:53:22,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 14:53:22,489 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:22,546 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:53:22,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:53:22 BoogieIcfgContainer [2024-12-02 14:53:22,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:53:22,549 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:53:22,549 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:53:22,549 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:53:22,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:40:35" (3/4) ... [2024-12-02 14:53:22,552 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:53:22,552 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:53:22,553 INFO L158 Benchmark]: Toolchain (without parser) took 767685.07ms. Allocated memory was 117.4MB in the beginning and 847.2MB in the end (delta: 729.8MB). Free memory was 93.4MB in the beginning and 441.0MB in the end (delta: -347.6MB). Peak memory consumption was 381.7MB. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.96ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 78.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.63ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 74.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: Boogie Preprocessor took 43.90ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 67.9MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: RCFGBuilder took 407.96ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 43.0MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 14:53:22,553 INFO L158 Benchmark]: TraceAbstraction took 766946.58ms. Allocated memory was 117.4MB in the beginning and 847.2MB in the end (delta: 729.8MB). Free memory was 42.2MB in the beginning and 441.1MB in the end (delta: -398.9MB). Peak memory consumption was 331.3MB. Max. memory is 16.1GB. [2024-12-02 14:53:22,554 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 847.2MB. Free memory was 441.1MB in the beginning and 441.0MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:53:22,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.96ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 78.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.63ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 74.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.90ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 67.9MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 407.96ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 43.0MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 766946.58ms. Allocated memory was 117.4MB in the beginning and 847.2MB in the end (delta: 729.8MB). Free memory was 42.2MB in the beginning and 441.1MB in the end (delta: -398.9MB). Peak memory consumption was 331.3MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 847.2MB. Free memory was 441.1MB in the beginning and 441.0MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 117, overapproximation of shiftLeft at line 54, overapproximation of shiftLeft at line 117. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] unsigned short int var_1_4 = 58792; [L24] unsigned short int var_1_5 = 8; [L25] unsigned short int var_1_6 = 64; [L26] unsigned short int var_1_7 = 16; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 1; [L29] signed short int var_1_10 = 1000; [L30] signed short int var_1_11 = 1; [L31] signed short int var_1_12 = -25; [L32] signed short int var_1_13 = 25; [L33] unsigned short int var_1_14 = 5; [L34] unsigned short int var_1_16 = 20511; [L35] unsigned long int var_1_17 = 50; [L36] unsigned short int var_1_18 = 10; [L37] unsigned char last_1_var_1_8 = 0; VAL [isInitial=0, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=58792, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L121] isInitial = 1 [L122] FCALL initially() [L124] CALL updateLastVariables() [L114] last_1_var_1_8 = var_1_8 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=58792, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L124] RET updateLastVariables() [L125] CALL updateVariables() [L85] var_1_4 = __VERIFIER_nondet_ushort() [L86] CALL assume_abort_if_not(var_1_4 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L86] RET assume_abort_if_not(var_1_4 >= 49150) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L87] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=8, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L88] var_1_5 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L89] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L90] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=64, var_1_7=16, var_1_8=0, var_1_9=1] [L91] var_1_6 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_7=16, var_1_8=0, var_1_9=1] [L92] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_7=16, var_1_8=0, var_1_9=1] [L93] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=16, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=16, var_1_8=0, var_1_9=1] [L93] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=16, var_1_8=0, var_1_9=1] [L94] var_1_7 = __VERIFIER_nondet_ushort() [L95] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_8=0, var_1_9=1] [L95] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_8=0, var_1_9=1] [L96] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=1] [L96] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=1] [L97] var_1_9 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L98] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L99] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L99] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=1, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L100] var_1_11 = __VERIFIER_nondet_short() [L101] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L101] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L102] CALL assume_abort_if_not(var_1_11 <= 8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L102] RET assume_abort_if_not(var_1_11 <= 8191) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-25, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L103] var_1_12 = __VERIFIER_nondet_short() [L104] CALL assume_abort_if_not(var_1_12 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L104] RET assume_abort_if_not(var_1_12 >= -16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L105] CALL assume_abort_if_not(var_1_12 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L105] RET assume_abort_if_not(var_1_12 <= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=25, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L106] var_1_13 = __VERIFIER_nondet_short() [L107] CALL assume_abort_if_not(var_1_13 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L107] RET assume_abort_if_not(var_1_13 >= -32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L108] CALL assume_abort_if_not(var_1_13 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L108] RET assume_abort_if_not(var_1_13 <= 32766) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=20511, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L109] var_1_16 = __VERIFIER_nondet_ushort() [L110] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L110] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L111] CALL assume_abort_if_not(var_1_16 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L111] RET assume_abort_if_not(var_1_16 <= 32767) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L125] RET updateVariables() [L126] CALL step() [L41] unsigned short int stepLocal_1 = var_1_6; [L42] unsigned char stepLocal_0 = last_1_var_1_8; VAL [isInitial=1, last_1_var_1_8=0, stepLocal_0=0, stepLocal_1=3, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L43] COND FALSE !(last_1_var_1_8 && stepLocal_0) VAL [isInitial=1, last_1_var_1_8=0, stepLocal_1=3, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=4, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L46] COND TRUE ((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < stepLocal_1 [L47] var_1_1 = var_1_5 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=0, var_1_9=-255] [L50] var_1_8 = (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=5, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L51] COND TRUE \read(var_1_8) [L52] var_1_14 = (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L54] EXPR var_1_16 << var_1_7 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L54] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=50, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L54] signed long int stepLocal_4 = (((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7))); [L55] COND TRUE stepLocal_4 >= var_1_14 [L56] var_1_17 = var_1_11 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L60] unsigned short int stepLocal_5 = var_1_5; VAL [isInitial=1, last_1_var_1_8=0, stepLocal_5=1, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L61] COND FALSE !(stepLocal_5 == var_1_16) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=10, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L68] COND TRUE \read(var_1_9) [L69] var_1_18 = 200 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L72] unsigned char stepLocal_3 = var_1_9; [L73] unsigned long int stepLocal_2 = var_1_17; VAL [isInitial=1, last_1_var_1_8=0, stepLocal_2=3, stepLocal_3=-255, var_1_10=1000, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L74] COND FALSE !(stepLocal_2 < var_1_6) [L81] var_1_10 = var_1_13 VAL [isInitial=1, last_1_var_1_8=0, stepLocal_3=-255, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5)))) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117] EXPR var_1_16 << var_1_7 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117] EXPR var_1_16 << var_1_7 VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117] EXPR ((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117] EXPR (((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5)))) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L117-L118] return ((((((last_1_var_1_8 && last_1_var_1_8) ? (var_1_1 == ((unsigned short int) ((((((56892) < (var_1_4)) ? (56892) : (var_1_4))) - var_1_5) - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) : ((((((var_1_7) > (var_1_5)) ? (var_1_7) : (var_1_5))) < var_1_6) ? (var_1_1 == ((unsigned short int) var_1_5)) : 1)) && (var_1_8 == ((unsigned char) (((var_1_7 >= var_1_5) && (var_1_4 >= var_1_1)) || var_1_9)))) && ((var_1_17 < var_1_6) ? (((var_1_6 != var_1_5) || var_1_9) ? (var_1_10 == ((signed short int) (((10000 - var_1_11) - var_1_5) + ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))))) : (var_1_10 == ((signed short int) var_1_4))) : (var_1_10 == ((signed short int) var_1_13)))) && (var_1_8 ? (var_1_14 == ((unsigned short int) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - ((((var_1_5) > ((var_1_16 - var_1_11))) ? (var_1_5) : ((var_1_16 - var_1_11))))))) : 1)) && ((((((var_1_13) > ((var_1_16 << var_1_7))) ? (var_1_13) : ((var_1_16 << var_1_7)))) >= var_1_14) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) (var_1_6 + var_1_5))))) && ((var_1_5 == var_1_16) ? (var_1_8 ? (var_1_18 == ((unsigned short int) (((((var_1_16 + 30393) - var_1_5) < 0 ) ? -((var_1_16 + 30393) - var_1_5) : ((var_1_16 + 30393) - var_1_5))))) : (var_1_18 == ((unsigned short int) var_1_4))) : (var_1_9 ? (var_1_18 == ((unsigned short int) 200)) : 1)) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=0, var_1_10=32766, var_1_11=3, var_1_12=-16383, var_1_13=32766, var_1_14=32766, var_1_16=16387, var_1_17=3, var_1_18=200, var_1_1=1, var_1_4=-1073692674, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=1, var_1_9=-255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 766.8s, OverallIterations: 52, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 94.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17397 SdHoareTripleChecker+Valid, 44.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17397 mSDsluCounter, 35403 SdHoareTripleChecker+Invalid, 39.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29866 mSDsCounter, 2439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44282 IncrementalHoareTripleChecker+Invalid, 46721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2439 mSolverCounterUnsat, 5537 mSDtfsCounter, 44282 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1443 GetRequests, 358 SyntacticMatches, 10 SemanticMatches, 1075 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4289 ImplicationChecksByTransitivity, 69.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1342occurred in iteration=47, InterpolantAutomatonStates: 742, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 51 MinimizatonAttempts, 12258 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 666.8s InterpolantComputationTime, 6554 NumberOfCodeBlocks, 6554 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 6372 ConstructedInterpolants, 0 QuantifiedInterpolants, 72743 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 51 PerfectInterpolantSequences, 31212/31212 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 14:53:22,761 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-12-02 14:53:22,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:53:24,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:53:24,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 14:53:24,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:53:24,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:53:24,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:53:24,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:53:24,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:53:24,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:53:24,651 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:53:24,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:53:24,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:53:24,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:53:24,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:53:24,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:53:24,653 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:53:24,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:24,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:24,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:53:24,654 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:53:24,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:53:24,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:53:24,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:53:24,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:53:24,655 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/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 -> 24099d82b3ec494380587a5a92596aaf0762a1093bfe7e4cba5f9fda7da3acf4 [2024-12-02 14:53:24,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:53:24,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:53:24,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:53:24,908 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:53:24,909 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:53:24,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:53:27,588 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/b7111e110/5e985fe71f5b4107b876dfe970c59525/FLAG895ffe7cc [2024-12-02 14:53:27,765 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:53:27,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:53:27,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/b7111e110/5e985fe71f5b4107b876dfe970c59525/FLAG895ffe7cc [2024-12-02 14:53:28,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/data/b7111e110/5e985fe71f5b4107b876dfe970c59525 [2024-12-02 14:53:28,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:53:28,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:53:28,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:53:28,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:53:28,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:53:28,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633aca5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28, skipping insertion in model container [2024-12-02 14:53:28,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:53:28,257 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-12-02 14:53:28,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:53:28,313 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:53:28,321 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_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-10.i[913,926] [2024-12-02 14:53:28,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:53:28,352 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:53:28,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28 WrapperNode [2024-12-02 14:53:28,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:53:28,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:53:28,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:53:28,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:53:28,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,383 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2024-12-02 14:53:28,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:53:28,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:53:28,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:53:28,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:53:28,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,401 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 14:53:28,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,408 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:53:28,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:53:28,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:53:28,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:53:28,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (1/1) ... [2024-12-02 14:53:28,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:28,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:53:28,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:53:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:53:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:53:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:53:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:53:28,528 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:53:28,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:53:28,749 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 14:53:28,750 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:53:28,758 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:53:28,758 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:53:28,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:28 BoogieIcfgContainer [2024-12-02 14:53:28,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:53:28,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:53:28,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:53:28,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:53:28,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:53:28" (1/3) ... [2024-12-02 14:53:28,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a954f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:28, skipping insertion in model container [2024-12-02 14:53:28,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:28" (2/3) ... [2024-12-02 14:53:28,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a954f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:28, skipping insertion in model container [2024-12-02 14:53:28,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:28" (3/3) ... [2024-12-02 14:53:28,767 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-10.i [2024-12-02 14:53:28,782 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:53:28,783 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-10.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:53:28,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:53:28,830 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;@3bc03304, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:53:28,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:53:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 14:53:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 14:53:28,840 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:28,841 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:28,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:28,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash -218280069, now seen corresponding path program 1 times [2024-12-02 14:53:28,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:53:28,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968516451] [2024-12-02 14:53:28,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:28,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:28,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:28,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:53:28,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:53:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:28,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:53:28,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:53:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 14:53:29,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:53:29,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:53:29,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968516451] [2024-12-02 14:53:29,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968516451] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:29,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:29,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:53:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037655831] [2024-12-02 14:53:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:29,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:53:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:53:29,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:53:29,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:53:29,058 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:53:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:29,081 INFO L93 Difference]: Finished difference Result 111 states and 188 transitions. [2024-12-02 14:53:29,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:53:29,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2024-12-02 14:53:29,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:29,089 INFO L225 Difference]: With dead ends: 111 [2024-12-02 14:53:29,089 INFO L226 Difference]: Without dead ends: 55 [2024-12-02 14:53:29,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 14:53:29,095 INFO L435 NwaCegarLoop]: 81 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, 81 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 14:53:29,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:53:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-12-02 14:53:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-12-02 14:53:29,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 14:53:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions. [2024-12-02 14:53:29,130 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 118 [2024-12-02 14:53:29,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:29,131 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions. [2024-12-02 14:53:29,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 14:53:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions. [2024-12-02 14:53:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 14:53:29,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:29,134 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:29,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:53:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:29,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:29,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2032458181, now seen corresponding path program 1 times [2024-12-02 14:53:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:53:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873892142] [2024-12-02 14:53:29,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:29,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:29,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:53:29,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:53:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:29,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:53:29,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:53:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 14:53:29,727 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:53:29,727 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:53:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873892142] [2024-12-02 14:53:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873892142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:29,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:53:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544927135] [2024-12-02 14:53:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:29,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:53:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:53:29,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:53:29,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:53:29,730 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:29,915 INFO L93 Difference]: Finished difference Result 191 states and 281 transitions. [2024-12-02 14:53:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:53:29,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2024-12-02 14:53:29,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:29,919 INFO L225 Difference]: With dead ends: 191 [2024-12-02 14:53:29,919 INFO L226 Difference]: Without dead ends: 139 [2024-12-02 14:53:29,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 14:53:29,920 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 85 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:29,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:53:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-12-02 14:53:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 102. [2024-12-02 14:53:29,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 14:53:29,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2024-12-02 14:53:29,942 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 118 [2024-12-02 14:53:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:29,942 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2024-12-02 14:53:29,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 14:53:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2024-12-02 14:53:29,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 14:53:29,945 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:29,945 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:29,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:53:30,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:30,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:30,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1986650346, now seen corresponding path program 1 times [2024-12-02 14:53:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:53:30,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149073370] [2024-12-02 14:53:30,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:30,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:53:30,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:30,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:53:30,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cdbdb1a-24fb-456d-a0c5-fb1078d31529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:53:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:30,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 14:53:30,270 INFO L279 TraceCheckSpWp]: Computing forward predicates...