./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/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 17124c627a77300cd44285b9c4c316438e4d73c0a011ab8330c0a1114bb82733 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:25:34,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:25:34,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:25:34,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:25:34,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:25:34,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:25:34,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:25:34,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:25:34,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:25:34,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:25:34,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:25:34,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:25:34,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:25:34,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:25:34,703 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:34,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:34,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:34,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:25:34,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:25:34,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:25:34,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:25:34,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:25:34,705 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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/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 -> 17124c627a77300cd44285b9c4c316438e4d73c0a011ab8330c0a1114bb82733 [2024-12-02 14:25:34,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:25:34,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:25:34,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:25:34,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:25:34,946 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:25:34,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-12-02 14:25:37,543 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/data/4d79f7b99/5b8be949381543a5b99c0de1d70d1acb/FLAG56292d750 [2024-12-02 14:25:37,801 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:25:37,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-12-02 14:25:37,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/data/4d79f7b99/5b8be949381543a5b99c0de1d70d1acb/FLAG56292d750 [2024-12-02 14:25:37,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/data/4d79f7b99/5b8be949381543a5b99c0de1d70d1acb [2024-12-02 14:25:37,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:25:37,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:25:37,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:37,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:25:37,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:25:37,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42560ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:37, skipping insertion in model container [2024-12-02 14:25:37,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:25:37" (1/1) ... [2024-12-02 14:25:37,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:25:37,988 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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i[915,928] [2024-12-02 14:25:38,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:38,058 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:25:38,069 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_8ee3a35b-a6eb-43a5-ab25-879e4f227270/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-10.i[915,928] [2024-12-02 14:25:38,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:25:38,111 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:25:38,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38 WrapperNode [2024-12-02 14:25:38,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:25:38,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:38,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:25:38,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:25:38,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,164 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2024-12-02 14:25:38,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:25:38,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:25:38,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:25:38,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:25:38,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,195 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 14:25:38,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,204 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:25:38,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:25:38,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:25:38,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:25:38,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (1/1) ... [2024-12-02 14:25:38,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:25:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:25:38,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:25:38,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:25:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:25:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:25:38,340 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:25:38,342 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:25:38,688 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-02 14:25:38,688 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:25:38,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:25:38,698 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:25:38,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:38 BoogieIcfgContainer [2024-12-02 14:25:38,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:25:38,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:25:38,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:25:38,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:25:38,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:25:37" (1/3) ... [2024-12-02 14:25:38,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1399f1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:38, skipping insertion in model container [2024-12-02 14:25:38,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:25:38" (2/3) ... [2024-12-02 14:25:38,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1399f1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:25:38, skipping insertion in model container [2024-12-02 14:25:38,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:25:38" (3/3) ... [2024-12-02 14:25:38,714 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-10.i [2024-12-02 14:25:38,725 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:25:38,726 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-10.i that has 2 procedures, 92 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:25:38,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:25:38,778 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;@264285e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:25:38,778 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:25:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 14:25:38,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 14:25:38,792 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:38,793 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:38,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:38,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2101394287, now seen corresponding path program 1 times [2024-12-02 14:25:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:38,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917033723] [2024-12-02 14:25:38,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-12-02 14:25:39,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:39,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917033723] [2024-12-02 14:25:39,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917033723] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:25:39,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130139302] [2024-12-02 14:25:39,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:39,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:25:39,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:25:39,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:25:39,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:25:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:39,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:25:39,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:25:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-12-02 14:25:39,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:25:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130139302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:39,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:25:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:25:39,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832010922] [2024-12-02 14:25:39,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:39,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:25:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:39,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:25:39,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:25:39,253 INFO L87 Difference]: Start difference. First operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 65 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:25:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:39,279 INFO L93 Difference]: Finished difference Result 177 states and 299 transitions. [2024-12-02 14:25:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:25:39,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) Word has length 164 [2024-12-02 14:25:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:39,286 INFO L225 Difference]: With dead ends: 177 [2024-12-02 14:25:39,286 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 14:25:39,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 165 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 14:25:39,291 INFO L435 NwaCegarLoop]: 132 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, 132 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 14:25:39,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:25:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 14:25:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-12-02 14:25:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 61 states have internal predecessors, (82), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 14:25:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 132 transitions. [2024-12-02 14:25:39,326 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 132 transitions. Word has length 164 [2024-12-02 14:25:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:39,326 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 132 transitions. [2024-12-02 14:25:39,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:25:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2024-12-02 14:25:39,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 14:25:39,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:39,330 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:39,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:25:39,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee3a35b-a6eb-43a5-ab25-879e4f227270/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 14:25:39,531 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:39,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -615042911, now seen corresponding path program 1 times [2024-12-02 14:25:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88140187] [2024-12-02 14:25:39,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:25:40,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:40,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88140187] [2024-12-02 14:25:40,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88140187] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:40,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:40,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:25:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611035402] [2024-12-02 14:25:40,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:40,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:25:40,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:40,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:25:40,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:25:40,055 INFO L87 Difference]: Start difference. First operand 88 states and 132 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:40,260 INFO L93 Difference]: Finished difference Result 259 states and 391 transitions. [2024-12-02 14:25:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:25:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165 [2024-12-02 14:25:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:40,264 INFO L225 Difference]: With dead ends: 259 [2024-12-02 14:25:40,264 INFO L226 Difference]: Without dead ends: 174 [2024-12-02 14:25:40,265 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 14:25:40,265 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 94 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:40,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 499 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:25:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-12-02 14:25:40,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2024-12-02 14:25:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 87 states have internal predecessors, (112), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:25:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 212 transitions. [2024-12-02 14:25:40,294 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 212 transitions. Word has length 165 [2024-12-02 14:25:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:40,295 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 212 transitions. [2024-12-02 14:25:40,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:40,295 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 212 transitions. [2024-12-02 14:25:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 14:25:40,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:40,298 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:40,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:25:40,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:40,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2087881671, now seen corresponding path program 1 times [2024-12-02 14:25:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:40,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101794124] [2024-12-02 14:25:40,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:25:40,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101794124] [2024-12-02 14:25:40,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101794124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:40,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:40,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:25:40,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97256454] [2024-12-02 14:25:40,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:40,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:25:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:40,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:25:40,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:25:40,557 INFO L87 Difference]: Start difference. First operand 140 states and 212 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:40,711 INFO L93 Difference]: Finished difference Result 237 states and 353 transitions. [2024-12-02 14:25:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:25:40,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 166 [2024-12-02 14:25:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:40,714 INFO L225 Difference]: With dead ends: 237 [2024-12-02 14:25:40,714 INFO L226 Difference]: Without dead ends: 150 [2024-12-02 14:25:40,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:25:40,716 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 112 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:40,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 224 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:25:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-12-02 14:25:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-12-02 14:25:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:25:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-12-02 14:25:40,740 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 166 [2024-12-02 14:25:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:40,740 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-12-02 14:25:40,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-12-02 14:25:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:25:40,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:40,743 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:40,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:25:40,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:40,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash 228644080, now seen corresponding path program 1 times [2024-12-02 14:25:40,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:40,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963114408] [2024-12-02 14:25:40,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:40,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:41,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:25:41,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:41,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963114408] [2024-12-02 14:25:41,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963114408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:41,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:41,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:25:41,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432155068] [2024-12-02 14:25:41,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:41,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:25:41,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:41,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:25:41,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:25:41,023 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:41,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:41,157 INFO L93 Difference]: Finished difference Result 244 states and 359 transitions. [2024-12-02 14:25:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:25:41,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:25:41,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:41,160 INFO L225 Difference]: With dead ends: 244 [2024-12-02 14:25:41,160 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 14:25:41,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 14:25:41,161 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:41,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 304 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:25:41,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 14:25:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-12-02 14:25:41,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:25:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-12-02 14:25:41,184 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 167 [2024-12-02 14:25:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:41,185 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-12-02 14:25:41,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-12-02 14:25:41,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:25:41,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:41,188 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:41,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:25:41,188 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:41,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -404164286, now seen corresponding path program 1 times [2024-12-02 14:25:41,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:41,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098061313] [2024-12-02 14:25:41,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:25:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:25:41,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:25:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098061313] [2024-12-02 14:25:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098061313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:25:41,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:25:41,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:25:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265094353] [2024-12-02 14:25:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:25:41,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:25:41,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:25:41,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:25:41,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:25:41,338 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:41,365 INFO L93 Difference]: Finished difference Result 242 states and 355 transitions. [2024-12-02 14:25:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:25:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:25:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:41,367 INFO L225 Difference]: With dead ends: 242 [2024-12-02 14:25:41,368 INFO L226 Difference]: Without dead ends: 150 [2024-12-02 14:25:41,368 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 14:25:41,369 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 124 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:41,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 267 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:25:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-12-02 14:25:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-12-02 14:25:41,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 95 states have internal predecessors, (118), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:25:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 218 transitions. [2024-12-02 14:25:41,389 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 218 transitions. Word has length 167 [2024-12-02 14:25:41,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:25:41,390 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 218 transitions. [2024-12-02 14:25:41,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:25:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 218 transitions. [2024-12-02 14:25:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:25:41,392 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:25:41,392 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:25:41,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:25:41,392 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:25:41,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:25:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash 18537540, now seen corresponding path program 1 times [2024-12-02 14:25:41,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:25:41,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290129407] [2024-12-02 14:25:41,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:25:41,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:25:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:26:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:43,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290129407] [2024-12-02 14:26:43,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290129407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:26:43,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:26:43,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:26:43,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599361368] [2024-12-02 14:26:43,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:26:43,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:26:43,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:43,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:26:43,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:26:43,990 INFO L87 Difference]: Start difference. First operand 150 states and 218 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:26:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:26:46,800 INFO L93 Difference]: Finished difference Result 425 states and 605 transitions. [2024-12-02 14:26:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:26:46,801 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:26:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:26:46,803 INFO L225 Difference]: With dead ends: 425 [2024-12-02 14:26:46,803 INFO L226 Difference]: Without dead ends: 335 [2024-12-02 14:26:46,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:26:46,804 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 964 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:26:46,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 642 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 14:26:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-12-02 14:26:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 177. [2024-12-02 14:26:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 121 states have internal predecessors, (154), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:26:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 254 transitions. [2024-12-02 14:26:46,828 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 254 transitions. Word has length 167 [2024-12-02 14:26:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:26:46,829 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 254 transitions. [2024-12-02 14:26:46,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:26:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 254 transitions. [2024-12-02 14:26:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:26:46,831 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:26:46,831 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:26:46,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:26:46,832 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:26:46,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1166662980, now seen corresponding path program 1 times [2024-12-02 14:26:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932292803] [2024-12-02 14:26:46,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:46,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:26:55,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:55,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932292803] [2024-12-02 14:26:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932292803] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:26:55,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:26:55,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:26:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870779369] [2024-12-02 14:26:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:26:55,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:26:55,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:55,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:26:55,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:26:55,531 INFO L87 Difference]: Start difference. First operand 177 states and 254 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:26:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:26:57,440 INFO L93 Difference]: Finished difference Result 460 states and 646 transitions. [2024-12-02 14:26:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:26:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:26:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:26:57,442 INFO L225 Difference]: With dead ends: 460 [2024-12-02 14:26:57,442 INFO L226 Difference]: Without dead ends: 370 [2024-12-02 14:26:57,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:26:57,443 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 534 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:26:57,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 683 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:26:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-12-02 14:26:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 178. [2024-12-02 14:26:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 122 states have (on average 1.278688524590164) internal successors, (156), 122 states have internal predecessors, (156), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 14:26:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 256 transitions. [2024-12-02 14:26:57,459 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 256 transitions. Word has length 167 [2024-12-02 14:26:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:26:57,459 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 256 transitions. [2024-12-02 14:26:57,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:26:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 256 transitions. [2024-12-02 14:26:57,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:26:57,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:26:57,461 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:26:57,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:26:57,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:26:57,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:57,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1846721350, now seen corresponding path program 1 times [2024-12-02 14:26:57,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:57,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322778142] [2024-12-02 14:26:57,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:57,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:27:15,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:15,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322778142] [2024-12-02 14:27:15,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322778142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:15,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:27:15,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353111685] [2024-12-02 14:27:15,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:15,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:27:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:15,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:27:15,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:27:15,811 INFO L87 Difference]: Start difference. First operand 178 states and 256 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:27:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:16,773 INFO L93 Difference]: Finished difference Result 487 states and 695 transitions. [2024-12-02 14:27:16,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:27:16,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:27:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:16,776 INFO L225 Difference]: With dead ends: 487 [2024-12-02 14:27:16,776 INFO L226 Difference]: Without dead ends: 397 [2024-12-02 14:27:16,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:27:16,776 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 387 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:16,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 672 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:27:16,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-02 14:27:16,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 276. [2024-12-02 14:27:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 192 states have (on average 1.2864583333333333) internal successors, (247), 192 states have internal predecessors, (247), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:27:16,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 397 transitions. [2024-12-02 14:27:16,811 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 397 transitions. Word has length 167 [2024-12-02 14:27:16,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:16,811 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 397 transitions. [2024-12-02 14:27:16,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:27:16,812 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 397 transitions. [2024-12-02 14:27:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:27:16,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:16,814 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:27:16,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:27:16,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:16,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash -239627898, now seen corresponding path program 1 times [2024-12-02 14:27:16,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:16,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851223733] [2024-12-02 14:27:16,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:16,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:27:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851223733] [2024-12-02 14:27:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851223733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:27:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969986450] [2024-12-02 14:27:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:42,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:27:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:42,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:27:42,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:27:42,860 INFO L87 Difference]: Start difference. First operand 276 states and 397 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:27:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:49,273 INFO L93 Difference]: Finished difference Result 607 states and 852 transitions. [2024-12-02 14:27:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:27:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2024-12-02 14:27:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:49,275 INFO L225 Difference]: With dead ends: 607 [2024-12-02 14:27:49,275 INFO L226 Difference]: Without dead ends: 407 [2024-12-02 14:27:49,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 14:27:49,276 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 563 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:49,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1103 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 14:27:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-12-02 14:27:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 300. [2024-12-02 14:27:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 212 states have (on average 1.2735849056603774) internal successors, (270), 212 states have internal predecessors, (270), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:27:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 420 transitions. [2024-12-02 14:27:49,308 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 420 transitions. Word has length 167 [2024-12-02 14:27:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:49,308 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 420 transitions. [2024-12-02 14:27:49,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:27:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 420 transitions. [2024-12-02 14:27:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:27:49,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:49,310 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:27:49,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:27:49,310 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:49,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 908497542, now seen corresponding path program 1 times [2024-12-02 14:27:49,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:49,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32205756] [2024-12-02 14:27:49,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:28:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:28:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:28:02,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32205756] [2024-12-02 14:28:02,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32205756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:28:02,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:28:02,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:28:02,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346741330] [2024-12-02 14:28:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:28:02,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:28:02,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:28:02,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:28:02,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:28:02,881 INFO L87 Difference]: Start difference. First operand 300 states and 420 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:28:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:28:04,376 INFO L93 Difference]: Finished difference Result 593 states and 822 transitions. [2024-12-02 14:28:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:28:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:28:04,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:28:04,378 INFO L225 Difference]: With dead ends: 593 [2024-12-02 14:28:04,378 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 14:28:04,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:28:04,379 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 563 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:28:04,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 691 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:28:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 14:28:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 312. [2024-12-02 14:28:04,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 224 states have (on average 1.2857142857142858) internal successors, (288), 224 states have internal predecessors, (288), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:28:04,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 438 transitions. [2024-12-02 14:28:04,416 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 438 transitions. Word has length 167 [2024-12-02 14:28:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:28:04,416 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 438 transitions. [2024-12-02 14:28:04,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:28:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 438 transitions. [2024-12-02 14:28:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:28:04,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:28:04,418 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:28:04,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:28:04,418 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:28:04,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:28:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1588555912, now seen corresponding path program 1 times [2024-12-02 14:28:04,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:28:04,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191067645] [2024-12-02 14:28:04,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:28:04,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:28:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:28:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:28:29,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:28:29,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191067645] [2024-12-02 14:28:29,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191067645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:28:29,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:28:29,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:28:29,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649508321] [2024-12-02 14:28:29,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:28:29,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:28:29,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:28:29,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:28:29,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:28:29,417 INFO L87 Difference]: Start difference. First operand 312 states and 438 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:28:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:28:31,569 INFO L93 Difference]: Finished difference Result 549 states and 763 transitions. [2024-12-02 14:28:31,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:28:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:28:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:28:31,572 INFO L225 Difference]: With dead ends: 549 [2024-12-02 14:28:31,572 INFO L226 Difference]: Without dead ends: 459 [2024-12-02 14:28:31,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:28:31,573 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 558 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:28:31,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 774 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:28:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-12-02 14:28:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 307. [2024-12-02 14:28:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 219 states have (on average 1.278538812785388) internal successors, (280), 219 states have internal predecessors, (280), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:28:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 430 transitions. [2024-12-02 14:28:31,619 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 430 transitions. Word has length 167 [2024-12-02 14:28:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:28:31,619 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 430 transitions. [2024-12-02 14:28:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:28:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 430 transitions. [2024-12-02 14:28:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:28:31,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:28:31,621 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:28:31,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:28:31,621 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:28:31,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:28:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash -322472444, now seen corresponding path program 1 times [2024-12-02 14:28:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:28:31,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486838572] [2024-12-02 14:28:31,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:28:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:28:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:29:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:29:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:29:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486838572] [2024-12-02 14:29:20,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486838572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:29:20,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:29:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:29:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130867542] [2024-12-02 14:29:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:29:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:29:20,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:29:20,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:29:20,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:29:20,937 INFO L87 Difference]: Start difference. First operand 307 states and 430 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:29:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:29:22,171 INFO L93 Difference]: Finished difference Result 616 states and 856 transitions. [2024-12-02 14:29:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:29:22,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:29:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:29:22,174 INFO L225 Difference]: With dead ends: 616 [2024-12-02 14:29:22,174 INFO L226 Difference]: Without dead ends: 399 [2024-12-02 14:29:22,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:29:22,175 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 395 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:29:22,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 751 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:29:22,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-12-02 14:29:22,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 315. [2024-12-02 14:29:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 227 states have (on average 1.277533039647577) internal successors, (290), 227 states have internal predecessors, (290), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:29:22,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 440 transitions. [2024-12-02 14:29:22,198 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 440 transitions. Word has length 167 [2024-12-02 14:29:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:29:22,198 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 440 transitions. [2024-12-02 14:29:22,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:29:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 440 transitions. [2024-12-02 14:29:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:29:22,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:29:22,200 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:29:22,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:29:22,200 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:29:22,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:29:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash -580637882, now seen corresponding path program 1 times [2024-12-02 14:29:22,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:29:22,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564544938] [2024-12-02 14:29:22,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:29:22,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:29:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:29:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:29:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:29:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564544938] [2024-12-02 14:29:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564544938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:29:40,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:29:40,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:29:40,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001821514] [2024-12-02 14:29:40,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:29:40,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:29:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:29:40,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:29:40,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:29:40,049 INFO L87 Difference]: Start difference. First operand 315 states and 440 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:29:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:29:41,879 INFO L93 Difference]: Finished difference Result 626 states and 868 transitions. [2024-12-02 14:29:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:29:41,880 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:29:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:29:41,882 INFO L225 Difference]: With dead ends: 626 [2024-12-02 14:29:41,882 INFO L226 Difference]: Without dead ends: 401 [2024-12-02 14:29:41,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:29:41,883 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 314 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:29:41,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1086 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:29:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-12-02 14:29:41,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 309. [2024-12-02 14:29:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 221 states have (on average 1.2760180995475112) internal successors, (282), 221 states have internal predecessors, (282), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:29:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 432 transitions. [2024-12-02 14:29:41,921 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 432 transitions. Word has length 167 [2024-12-02 14:29:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:29:41,922 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 432 transitions. [2024-12-02 14:29:41,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:29:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 432 transitions. [2024-12-02 14:29:41,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:29:41,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:29:41,923 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:29:41,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:29:41,923 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:29:41,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:29:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1975607166, now seen corresponding path program 1 times [2024-12-02 14:29:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:29:41,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526806896] [2024-12-02 14:29:41,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:29:41,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:29:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:30:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:30:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:30:30,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526806896] [2024-12-02 14:30:30,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526806896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:30:30,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:30:30,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:30:30,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097931533] [2024-12-02 14:30:30,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:30:30,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:30:30,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:30:30,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:30:30,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:30:30,081 INFO L87 Difference]: Start difference. First operand 309 states and 432 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:30:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:30:31,095 INFO L93 Difference]: Finished difference Result 556 states and 779 transitions. [2024-12-02 14:30:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:30:31,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-12-02 14:30:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:30:31,097 INFO L225 Difference]: With dead ends: 556 [2024-12-02 14:30:31,097 INFO L226 Difference]: Without dead ends: 466 [2024-12-02 14:30:31,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:30:31,098 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 262 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:30:31,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 560 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:30:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-12-02 14:30:31,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 328. [2024-12-02 14:30:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 240 states have (on average 1.2916666666666667) internal successors, (310), 240 states have internal predecessors, (310), 75 states have call successors, (75), 12 states have call predecessors, (75), 12 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 14:30:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 460 transitions. [2024-12-02 14:30:31,159 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 460 transitions. Word has length 167 [2024-12-02 14:30:31,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:30:31,159 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 460 transitions. [2024-12-02 14:30:31,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:30:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 460 transitions. [2024-12-02 14:30:31,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:30:31,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:30:31,160 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:31,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:30:31,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:30:31,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:30:31,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2061194692, now seen corresponding path program 1 times [2024-12-02 14:30:31,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:30:31,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332619404] [2024-12-02 14:30:31,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:30:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:30:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:31:26,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:26,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332619404] [2024-12-02 14:31:26,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332619404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:26,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:26,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:31:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601283300] [2024-12-02 14:31:26,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:26,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:31:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:26,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:31:26,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:31:26,858 INFO L87 Difference]: Start difference. First operand 328 states and 460 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:31:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:29,249 INFO L93 Difference]: Finished difference Result 638 states and 896 transitions. [2024-12-02 14:31:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:31:29,250 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2024-12-02 14:31:29,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:29,252 INFO L225 Difference]: With dead ends: 638 [2024-12-02 14:31:29,252 INFO L226 Difference]: Without dead ends: 548 [2024-12-02 14:31:29,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:31:29,253 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 625 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:29,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 870 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:31:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-12-02 14:31:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 419. [2024-12-02 14:31:29,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 302 states have (on average 1.281456953642384) internal successors, (387), 302 states have internal predecessors, (387), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 14:31:29,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 587 transitions. [2024-12-02 14:31:29,286 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 587 transitions. Word has length 167 [2024-12-02 14:31:29,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:29,286 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 587 transitions. [2024-12-02 14:31:29,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:31:29,286 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 587 transitions. [2024-12-02 14:31:29,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:31:29,287 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:29,287 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:29,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:31:29,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:29,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:29,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1978350146, now seen corresponding path program 1 times [2024-12-02 14:31:29,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:29,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97245093] [2024-12-02 14:31:29,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:31:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97245093] [2024-12-02 14:31:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97245093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:49,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:49,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:31:49,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902611230] [2024-12-02 14:31:49,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:49,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:31:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:49,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:31:49,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:31:49,986 INFO L87 Difference]: Start difference. First operand 419 states and 587 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:31:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:53,077 INFO L93 Difference]: Finished difference Result 877 states and 1204 transitions. [2024-12-02 14:31:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 14:31:53,077 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:31:53,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:53,079 INFO L225 Difference]: With dead ends: 877 [2024-12-02 14:31:53,079 INFO L226 Difference]: Without dead ends: 679 [2024-12-02 14:31:53,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=351, Invalid=839, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:31:53,080 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 698 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:53,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1006 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:31:53,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-12-02 14:31:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 431. [2024-12-02 14:31:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 313 states have (on average 1.2779552715654952) internal successors, (400), 313 states have internal predecessors, (400), 100 states have call successors, (100), 17 states have call predecessors, (100), 17 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 14:31:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 600 transitions. [2024-12-02 14:31:53,114 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 600 transitions. Word has length 167 [2024-12-02 14:31:53,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:53,114 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 600 transitions. [2024-12-02 14:31:53,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:31:53,115 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 600 transitions. [2024-12-02 14:31:53,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 14:31:53,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:53,116 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:53,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:31:53,116 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:53,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1720184708, now seen corresponding path program 1 times [2024-12-02 14:31:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:53,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008848496] [2024-12-02 14:31:53,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:32:09,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:09,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008848496] [2024-12-02 14:32:09,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008848496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:09,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:09,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:32:09,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254828798] [2024-12-02 14:32:09,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:09,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:32:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:09,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:32:09,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:32:09,246 INFO L87 Difference]: Start difference. First operand 431 states and 600 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:32:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:10,857 INFO L93 Difference]: Finished difference Result 840 states and 1169 transitions. [2024-12-02 14:32:10,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:32:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-12-02 14:32:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:10,860 INFO L225 Difference]: With dead ends: 840 [2024-12-02 14:32:10,860 INFO L226 Difference]: Without dead ends: 630 [2024-12-02 14:32:10,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:32:10,861 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 398 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:10,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 725 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:32:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-12-02 14:32:10,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 540. [2024-12-02 14:32:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 392 states have (on average 1.278061224489796) internal successors, (501), 392 states have internal predecessors, (501), 125 states have call successors, (125), 22 states have call predecessors, (125), 22 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-12-02 14:32:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 751 transitions. [2024-12-02 14:32:10,925 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 751 transitions. Word has length 167 [2024-12-02 14:32:10,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:10,925 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 751 transitions. [2024-12-02 14:32:10,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:32:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 751 transitions. [2024-12-02 14:32:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:32:10,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:10,927 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:10,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:32:10,927 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:10,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1119595325, now seen corresponding path program 1 times [2024-12-02 14:32:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202591376] [2024-12-02 14:32:10,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:10,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:32:11,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:11,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202591376] [2024-12-02 14:32:11,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202591376] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:11,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:11,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:32:11,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028597967] [2024-12-02 14:32:11,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:11,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:32:11,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:11,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:32:11,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:32:11,031 INFO L87 Difference]: Start difference. First operand 540 states and 751 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:32:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:11,149 INFO L93 Difference]: Finished difference Result 1148 states and 1584 transitions. [2024-12-02 14:32:11,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:32:11,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-12-02 14:32:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:11,152 INFO L225 Difference]: With dead ends: 1148 [2024-12-02 14:32:11,152 INFO L226 Difference]: Without dead ends: 702 [2024-12-02 14:32:11,153 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 14:32:11,153 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 39 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:11,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 396 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:32:11,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-12-02 14:32:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 688. [2024-12-02 14:32:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 517 states have (on average 1.264990328820116) internal successors, (654), 521 states have internal predecessors, (654), 141 states have call successors, (141), 29 states have call predecessors, (141), 29 states have return successors, (141), 137 states have call predecessors, (141), 141 states have call successors, (141) [2024-12-02 14:32:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 936 transitions. [2024-12-02 14:32:11,264 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 936 transitions. Word has length 168 [2024-12-02 14:32:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:11,265 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 936 transitions. [2024-12-02 14:32:11,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:32:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 936 transitions. [2024-12-02 14:32:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:32:11,266 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:11,266 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:11,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:32:11,266 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:11,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:11,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1706401339, now seen corresponding path program 1 times [2024-12-02 14:32:11,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:11,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180974561] [2024-12-02 14:32:11,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:11,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:33:11,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:11,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180974561] [2024-12-02 14:33:11,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180974561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:11,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:11,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:33:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762357595] [2024-12-02 14:33:11,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:11,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:33:11,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:11,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:33:11,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:33:11,381 INFO L87 Difference]: Start difference. First operand 688 states and 936 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:33:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:14,700 INFO L93 Difference]: Finished difference Result 1080 states and 1471 transitions. [2024-12-02 14:33:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:33:14,700 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 168 [2024-12-02 14:33:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:14,704 INFO L225 Difference]: With dead ends: 1080 [2024-12-02 14:33:14,704 INFO L226 Difference]: Without dead ends: 960 [2024-12-02 14:33:14,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2024-12-02 14:33:14,705 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 556 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:14,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 976 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:33:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-12-02 14:33:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 695. [2024-12-02 14:33:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 524 states have (on average 1.2690839694656488) internal successors, (665), 528 states have internal predecessors, (665), 141 states have call successors, (141), 29 states have call predecessors, (141), 29 states have return successors, (141), 137 states have call predecessors, (141), 141 states have call successors, (141) [2024-12-02 14:33:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 947 transitions. [2024-12-02 14:33:14,811 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 947 transitions. Word has length 168 [2024-12-02 14:33:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:14,811 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 947 transitions. [2024-12-02 14:33:14,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:33:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 947 transitions. [2024-12-02 14:33:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:33:14,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:14,813 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:14,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:33:14,813 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:14,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:14,813 INFO L85 PathProgramCache]: Analyzing trace with hash -274973573, now seen corresponding path program 1 times [2024-12-02 14:33:14,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640240544] [2024-12-02 14:33:14,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:33:29,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640240544] [2024-12-02 14:33:29,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640240544] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:29,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:29,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:33:29,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180573271] [2024-12-02 14:33:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:29,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:33:29,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:29,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:33:29,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:33:29,691 INFO L87 Difference]: Start difference. First operand 695 states and 947 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:30,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:30,685 INFO L93 Difference]: Finished difference Result 1385 states and 1883 transitions. [2024-12-02 14:33:30,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:33:30,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-12-02 14:33:30,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:30,689 INFO L225 Difference]: With dead ends: 1385 [2024-12-02 14:33:30,689 INFO L226 Difference]: Without dead ends: 941 [2024-12-02 14:33:30,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:33:30,690 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 288 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:30,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 857 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:33:30,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-12-02 14:33:30,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 693. [2024-12-02 14:33:30,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 522 states have (on average 1.2681992337164751) internal successors, (662), 526 states have internal predecessors, (662), 141 states have call successors, (141), 29 states have call predecessors, (141), 29 states have return successors, (141), 137 states have call predecessors, (141), 141 states have call successors, (141) [2024-12-02 14:33:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 944 transitions. [2024-12-02 14:33:30,770 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 944 transitions. Word has length 168 [2024-12-02 14:33:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:30,770 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 944 transitions. [2024-12-02 14:33:30,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 944 transitions. [2024-12-02 14:33:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:33:30,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:30,771 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:30,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:33:30,772 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:30,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:30,772 INFO L85 PathProgramCache]: Analyzing trace with hash 17457597, now seen corresponding path program 1 times [2024-12-02 14:33:30,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:30,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180891904] [2024-12-02 14:33:30,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:30,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:51,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:33:51,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:51,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180891904] [2024-12-02 14:33:51,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180891904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:51,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:51,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 14:33:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502122022] [2024-12-02 14:33:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:51,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 14:33:51,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:51,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 14:33:51,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:33:51,229 INFO L87 Difference]: Start difference. First operand 693 states and 944 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:33:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:56,611 INFO L93 Difference]: Finished difference Result 1059 states and 1444 transitions. [2024-12-02 14:33:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:33:56,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 168 [2024-12-02 14:33:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:56,614 INFO L225 Difference]: With dead ends: 1059 [2024-12-02 14:33:56,614 INFO L226 Difference]: Without dead ends: 787 [2024-12-02 14:33:56,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:33:56,615 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 594 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:56,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 773 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:33:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-12-02 14:33:56,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 683. [2024-12-02 14:33:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 516 states have (on average 1.2732558139534884) internal successors, (657), 519 states have internal predecessors, (657), 137 states have call successors, (137), 29 states have call predecessors, (137), 29 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2024-12-02 14:33:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 931 transitions. [2024-12-02 14:33:56,677 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 931 transitions. Word has length 168 [2024-12-02 14:33:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:56,677 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 931 transitions. [2024-12-02 14:33:56,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 3 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 14:33:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 931 transitions. [2024-12-02 14:33:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:33:56,679 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:56,679 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:56,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:33:56,679 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:56,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1792464959, now seen corresponding path program 1 times [2024-12-02 14:33:56,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:56,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016963476] [2024-12-02 14:33:56,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:56,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:33:58,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:58,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016963476] [2024-12-02 14:33:58,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016963476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:58,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:58,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:33:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858058679] [2024-12-02 14:33:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:33:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:58,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:33:58,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:33:58,240 INFO L87 Difference]: Start difference. First operand 683 states and 931 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:58,961 INFO L93 Difference]: Finished difference Result 1096 states and 1510 transitions. [2024-12-02 14:33:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:33:58,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-12-02 14:33:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:58,965 INFO L225 Difference]: With dead ends: 1096 [2024-12-02 14:33:58,965 INFO L226 Difference]: Without dead ends: 976 [2024-12-02 14:33:58,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:33:58,966 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 277 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:58,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 543 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:33:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-12-02 14:33:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 722. [2024-12-02 14:33:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 555 states have (on average 1.29009009009009) internal successors, (716), 558 states have internal predecessors, (716), 137 states have call successors, (137), 29 states have call predecessors, (137), 29 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2024-12-02 14:33:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 990 transitions. [2024-12-02 14:33:59,073 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 990 transitions. Word has length 168 [2024-12-02 14:33:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:59,073 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 990 transitions. [2024-12-02 14:33:59,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 990 transitions. [2024-12-02 14:33:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:33:59,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:59,074 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:59,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:33:59,075 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1270352065, now seen corresponding path program 1 times [2024-12-02 14:33:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:59,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347648121] [2024-12-02 14:33:59,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:33:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347648121] [2024-12-02 14:33:59,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347648121] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:59,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:59,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:33:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514478283] [2024-12-02 14:33:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:59,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:33:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:59,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:33:59,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:33:59,247 INFO L87 Difference]: Start difference. First operand 722 states and 990 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:59,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:59,422 INFO L93 Difference]: Finished difference Result 949 states and 1307 transitions. [2024-12-02 14:33:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:33:59,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-12-02 14:33:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:59,427 INFO L225 Difference]: With dead ends: 949 [2024-12-02 14:33:59,427 INFO L226 Difference]: Without dead ends: 813 [2024-12-02 14:33:59,428 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 14:33:59,428 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 48 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:59,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 388 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:33:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-12-02 14:33:59,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 798. [2024-12-02 14:33:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 616 states have (on average 1.2840909090909092) internal successors, (791), 621 states have internal predecessors, (791), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:33:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1089 transitions. [2024-12-02 14:33:59,548 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1089 transitions. Word has length 168 [2024-12-02 14:33:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:59,548 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1089 transitions. [2024-12-02 14:33:59,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:33:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1089 transitions. [2024-12-02 14:33:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:33:59,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:59,550 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:33:59,550 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:59,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1663379075, now seen corresponding path program 1 times [2024-12-02 14:33:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466556845] [2024-12-02 14:33:59,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:34:16,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466556845] [2024-12-02 14:34:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466556845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:34:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747511834] [2024-12-02 14:34:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:16,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:34:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:16,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:34:16,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:34:16,096 INFO L87 Difference]: Start difference. First operand 798 states and 1089 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:34:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:17,950 INFO L93 Difference]: Finished difference Result 1272 states and 1732 transitions. [2024-12-02 14:34:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:34:17,951 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 168 [2024-12-02 14:34:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:17,954 INFO L225 Difference]: With dead ends: 1272 [2024-12-02 14:34:17,954 INFO L226 Difference]: Without dead ends: 1077 [2024-12-02 14:34:17,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:34:17,955 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 447 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:17,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 992 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:34:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-12-02 14:34:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 834. [2024-12-02 14:34:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 652 states have (on average 1.299079754601227) internal successors, (847), 657 states have internal predecessors, (847), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:34:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1145 transitions. [2024-12-02 14:34:18,067 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1145 transitions. Word has length 168 [2024-12-02 14:34:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:18,067 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1145 transitions. [2024-12-02 14:34:18,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:34:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1145 transitions. [2024-12-02 14:34:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:34:18,068 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:18,068 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:18,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:34:18,068 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:18,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1963917315, now seen corresponding path program 1 times [2024-12-02 14:34:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:18,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128926454] [2024-12-02 14:34:18,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:34:37,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:37,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128926454] [2024-12-02 14:34:37,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128926454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:37,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:37,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:34:37,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049943474] [2024-12-02 14:34:37,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:37,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:34:37,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:37,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:34:37,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:34:37,482 INFO L87 Difference]: Start difference. First operand 834 states and 1145 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:34:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:39,010 INFO L93 Difference]: Finished difference Result 1523 states and 2080 transitions. [2024-12-02 14:34:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:34:39,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 168 [2024-12-02 14:34:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:39,013 INFO L225 Difference]: With dead ends: 1523 [2024-12-02 14:34:39,013 INFO L226 Difference]: Without dead ends: 977 [2024-12-02 14:34:39,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=174, Invalid=378, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:34:39,015 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 288 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:39,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 844 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:34:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-12-02 14:34:39,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 834. [2024-12-02 14:34:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 652 states have (on average 1.299079754601227) internal successors, (847), 657 states have internal predecessors, (847), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:34:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1145 transitions. [2024-12-02 14:34:39,085 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1145 transitions. Word has length 168 [2024-12-02 14:34:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:39,085 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1145 transitions. [2024-12-02 14:34:39,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:34:39,086 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1145 transitions. [2024-12-02 14:34:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:34:39,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:39,087 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:39,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:34:39,087 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:39,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash -188909953, now seen corresponding path program 1 times [2024-12-02 14:34:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:39,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681194775] [2024-12-02 14:34:39,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:39,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:34:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:34:47,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:34:47,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681194775] [2024-12-02 14:34:47,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681194775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:34:47,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:34:47,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:34:47,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69195596] [2024-12-02 14:34:47,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:34:47,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:34:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:34:47,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:34:47,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:34:47,836 INFO L87 Difference]: Start difference. First operand 834 states and 1145 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 14:34:52,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:34:52,619 INFO L93 Difference]: Finished difference Result 1834 states and 2486 transitions. [2024-12-02 14:34:52,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:34:52,619 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 168 [2024-12-02 14:34:52,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:34:52,622 INFO L225 Difference]: With dead ends: 1834 [2024-12-02 14:34:52,622 INFO L226 Difference]: Without dead ends: 1288 [2024-12-02 14:34:52,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=339, Invalid=993, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 14:34:52,624 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 539 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:34:52,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1432 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 14:34:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-12-02 14:34:52,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 843. [2024-12-02 14:34:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 661 states have (on average 1.302571860816944) internal successors, (861), 666 states have internal predecessors, (861), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:34:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1159 transitions. [2024-12-02 14:34:52,702 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1159 transitions. Word has length 168 [2024-12-02 14:34:52,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:34:52,703 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1159 transitions. [2024-12-02 14:34:52,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 14:34:52,703 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1159 transitions. [2024-12-02 14:34:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 14:34:52,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:34:52,704 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:52,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:34:52,704 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:34:52,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:34:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1043240319, now seen corresponding path program 1 times [2024-12-02 14:34:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:34:52,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115964344] [2024-12-02 14:34:52,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:34:52,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:34:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115964344] [2024-12-02 14:35:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115964344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:03,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:03,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:35:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391934844] [2024-12-02 14:35:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:03,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:35:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:03,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:35:03,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:35:03,626 INFO L87 Difference]: Start difference. First operand 843 states and 1159 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:04,230 INFO L93 Difference]: Finished difference Result 1550 states and 2119 transitions. [2024-12-02 14:35:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 14:35:04,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-12-02 14:35:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:04,234 INFO L225 Difference]: With dead ends: 1550 [2024-12-02 14:35:04,234 INFO L226 Difference]: Without dead ends: 995 [2024-12-02 14:35:04,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:35:04,235 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 226 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:04,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 702 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:35:04,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-12-02 14:35:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 830. [2024-12-02 14:35:04,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 648 states have (on average 1.2978395061728396) internal successors, (841), 653 states have internal predecessors, (841), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:35:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1139 transitions. [2024-12-02 14:35:04,316 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1139 transitions. Word has length 168 [2024-12-02 14:35:04,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:04,317 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1139 transitions. [2024-12-02 14:35:04,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1139 transitions. [2024-12-02 14:35:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 14:35:04,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:04,318 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:04,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:35:04,318 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:04,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash -177436545, now seen corresponding path program 1 times [2024-12-02 14:35:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:04,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824833374] [2024-12-02 14:35:04,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824833374] [2024-12-02 14:35:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824833374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:35:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146522083] [2024-12-02 14:35:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:20,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:35:20,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:20,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:35:20,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:35:20,327 INFO L87 Difference]: Start difference. First operand 830 states and 1139 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:35:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:23,432 INFO L93 Difference]: Finished difference Result 1495 states and 2036 transitions. [2024-12-02 14:35:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:35:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2024-12-02 14:35:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:23,436 INFO L225 Difference]: With dead ends: 1495 [2024-12-02 14:35:23,436 INFO L226 Difference]: Without dead ends: 1300 [2024-12-02 14:35:23,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:35:23,437 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 494 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:23,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 943 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:35:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-12-02 14:35:23,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 838. [2024-12-02 14:35:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 656 states have (on average 1.298780487804878) internal successors, (852), 661 states have internal predecessors, (852), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:35:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1150 transitions. [2024-12-02 14:35:23,533 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1150 transitions. Word has length 169 [2024-12-02 14:35:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:23,533 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1150 transitions. [2024-12-02 14:35:23,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:35:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1150 transitions. [2024-12-02 14:35:23,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 14:35:23,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:23,534 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:23,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:35:23,534 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:23,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:23,535 INFO L85 PathProgramCache]: Analyzing trace with hash 822827907, now seen corresponding path program 1 times [2024-12-02 14:35:23,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:23,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740098774] [2024-12-02 14:35:23,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:23,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:33,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:33,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740098774] [2024-12-02 14:35:33,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740098774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:33,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:33,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:35:33,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106557812] [2024-12-02 14:35:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:33,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:35:33,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:33,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:35:33,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:35:33,905 INFO L87 Difference]: Start difference. First operand 838 states and 1150 transitions. Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:35:35,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:35,792 INFO L93 Difference]: Finished difference Result 1126 states and 1549 transitions. [2024-12-02 14:35:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:35:35,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2024-12-02 14:35:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:35,796 INFO L225 Difference]: With dead ends: 1126 [2024-12-02 14:35:35,796 INFO L226 Difference]: Without dead ends: 931 [2024-12-02 14:35:35,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:35:35,797 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 381 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:35,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 607 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:35:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-12-02 14:35:35,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 806. [2024-12-02 14:35:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 624 states have (on average 1.2868589743589745) internal successors, (803), 629 states have internal predecessors, (803), 149 states have call successors, (149), 32 states have call predecessors, (149), 32 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2024-12-02 14:35:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1101 transitions. [2024-12-02 14:35:35,876 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1101 transitions. Word has length 169 [2024-12-02 14:35:35,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:35,876 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1101 transitions. [2024-12-02 14:35:35,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:35:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1101 transitions. [2024-12-02 14:35:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:35,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:35,877 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:35,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:35:35,878 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:35,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -138103504, now seen corresponding path program 1 times [2024-12-02 14:35:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:35,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148396360] [2024-12-02 14:35:35,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:35,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:38,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:38,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148396360] [2024-12-02 14:35:38,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148396360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:38,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:38,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:35:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90934130] [2024-12-02 14:35:38,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:38,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:35:38,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:38,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:35:38,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:35:38,887 INFO L87 Difference]: Start difference. First operand 806 states and 1101 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:40,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:40,156 INFO L93 Difference]: Finished difference Result 1285 states and 1760 transitions. [2024-12-02 14:35:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:35:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:35:40,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:40,160 INFO L225 Difference]: With dead ends: 1285 [2024-12-02 14:35:40,160 INFO L226 Difference]: Without dead ends: 1090 [2024-12-02 14:35:40,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:35:40,161 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 290 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:40,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1312 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:35:40,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-12-02 14:35:40,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 896. [2024-12-02 14:35:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 708 states have (on average 1.2838983050847457) internal successors, (909), 715 states have internal predecessors, (909), 153 states have call successors, (153), 34 states have call predecessors, (153), 34 states have return successors, (153), 146 states have call predecessors, (153), 153 states have call successors, (153) [2024-12-02 14:35:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1215 transitions. [2024-12-02 14:35:40,252 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1215 transitions. Word has length 170 [2024-12-02 14:35:40,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:40,252 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1215 transitions. [2024-12-02 14:35:40,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1215 transitions. [2024-12-02 14:35:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:40,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:40,253 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:40,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:35:40,254 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:40,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1452665808, now seen corresponding path program 1 times [2024-12-02 14:35:40,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:40,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140063831] [2024-12-02 14:35:40,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:40,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:42,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:42,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140063831] [2024-12-02 14:35:42,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140063831] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:42,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:42,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:35:42,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780471873] [2024-12-02 14:35:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:42,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:35:42,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:42,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:35:42,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:35:42,673 INFO L87 Difference]: Start difference. First operand 896 states and 1215 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:43,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:43,422 INFO L93 Difference]: Finished difference Result 1186 states and 1570 transitions. [2024-12-02 14:35:43,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:35:43,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:35:43,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:43,426 INFO L225 Difference]: With dead ends: 1186 [2024-12-02 14:35:43,426 INFO L226 Difference]: Without dead ends: 1184 [2024-12-02 14:35:43,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:35:43,427 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 90 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:43,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1173 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:35:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-12-02 14:35:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 949. [2024-12-02 14:35:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 761 states have (on average 1.2838370565045991) internal successors, (977), 768 states have internal predecessors, (977), 153 states have call successors, (153), 34 states have call predecessors, (153), 34 states have return successors, (153), 146 states have call predecessors, (153), 153 states have call successors, (153) [2024-12-02 14:35:43,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1283 transitions. [2024-12-02 14:35:43,521 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1283 transitions. Word has length 170 [2024-12-02 14:35:43,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:43,521 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1283 transitions. [2024-12-02 14:35:43,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:43,522 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1283 transitions. [2024-12-02 14:35:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:43,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:43,522 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:43,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 14:35:43,522 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:43,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1141760174, now seen corresponding path program 1 times [2024-12-02 14:35:43,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:43,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813270578] [2024-12-02 14:35:43,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:44,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:44,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813270578] [2024-12-02 14:35:44,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813270578] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:44,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:44,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:35:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318078588] [2024-12-02 14:35:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:44,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:35:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:44,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:35:44,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:35:44,679 INFO L87 Difference]: Start difference. First operand 949 states and 1283 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:45,724 INFO L93 Difference]: Finished difference Result 1306 states and 1765 transitions. [2024-12-02 14:35:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:35:45,725 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:35:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:45,728 INFO L225 Difference]: With dead ends: 1306 [2024-12-02 14:35:45,728 INFO L226 Difference]: Without dead ends: 1304 [2024-12-02 14:35:45,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:35:45,729 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 241 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:45,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1306 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:35:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-12-02 14:35:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1072. [2024-12-02 14:35:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 861 states have (on average 1.2845528455284554) internal successors, (1106), 871 states have internal predecessors, (1106), 173 states have call successors, (173), 37 states have call predecessors, (173), 37 states have return successors, (173), 163 states have call predecessors, (173), 173 states have call successors, (173) [2024-12-02 14:35:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1452 transitions. [2024-12-02 14:35:45,852 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1452 transitions. Word has length 170 [2024-12-02 14:35:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:45,852 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1452 transitions. [2024-12-02 14:35:45,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1452 transitions. [2024-12-02 14:35:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:45,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:45,853 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:45,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 14:35:45,854 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:45,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:45,854 INFO L85 PathProgramCache]: Analyzing trace with hash -172802130, now seen corresponding path program 1 times [2024-12-02 14:35:45,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:45,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683537370] [2024-12-02 14:35:45,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:47,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:47,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683537370] [2024-12-02 14:35:47,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683537370] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:47,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:47,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:35:47,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308076204] [2024-12-02 14:35:47,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:47,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:35:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:47,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:35:47,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:35:47,295 INFO L87 Difference]: Start difference. First operand 1072 states and 1452 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:48,641 INFO L93 Difference]: Finished difference Result 1540 states and 2065 transitions. [2024-12-02 14:35:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:35:48,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:35:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:48,645 INFO L225 Difference]: With dead ends: 1540 [2024-12-02 14:35:48,645 INFO L226 Difference]: Without dead ends: 1538 [2024-12-02 14:35:48,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:35:48,646 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 160 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:48,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1748 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:35:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-12-02 14:35:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1187. [2024-12-02 14:35:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 953 states have (on average 1.2843651626442811) internal successors, (1224), 965 states have internal predecessors, (1224), 191 states have call successors, (191), 42 states have call predecessors, (191), 42 states have return successors, (191), 179 states have call predecessors, (191), 191 states have call successors, (191) [2024-12-02 14:35:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1606 transitions. [2024-12-02 14:35:48,813 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1606 transitions. Word has length 170 [2024-12-02 14:35:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:48,814 INFO L471 AbstractCegarLoop]: Abstraction has 1187 states and 1606 transitions. [2024-12-02 14:35:48,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1606 transitions. [2024-12-02 14:35:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:48,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:48,815 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:48,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 14:35:48,815 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:48,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:48,815 INFO L85 PathProgramCache]: Analyzing trace with hash 85363308, now seen corresponding path program 1 times [2024-12-02 14:35:48,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:48,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485066853] [2024-12-02 14:35:48,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:48,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:35:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:35:51,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:35:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485066853] [2024-12-02 14:35:51,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485066853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:35:51,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:35:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:35:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223139692] [2024-12-02 14:35:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:35:51,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:35:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:35:51,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:35:51,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:35:51,035 INFO L87 Difference]: Start difference. First operand 1187 states and 1606 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:35:53,441 INFO L93 Difference]: Finished difference Result 1493 states and 2018 transitions. [2024-12-02 14:35:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:35:53,441 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:35:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:35:53,445 INFO L225 Difference]: With dead ends: 1493 [2024-12-02 14:35:53,446 INFO L226 Difference]: Without dead ends: 1491 [2024-12-02 14:35:53,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:35:53,446 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 288 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:35:53,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1397 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:35:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-12-02 14:35:53,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1202. [2024-12-02 14:35:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 968 states have (on average 1.2913223140495869) internal successors, (1250), 980 states have internal predecessors, (1250), 191 states have call successors, (191), 42 states have call predecessors, (191), 42 states have return successors, (191), 179 states have call predecessors, (191), 191 states have call successors, (191) [2024-12-02 14:35:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1632 transitions. [2024-12-02 14:35:53,588 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1632 transitions. Word has length 170 [2024-12-02 14:35:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:35:53,588 INFO L471 AbstractCegarLoop]: Abstraction has 1202 states and 1632 transitions. [2024-12-02 14:35:53,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:35:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1632 transitions. [2024-12-02 14:35:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:35:53,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:35:53,589 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:53,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 14:35:53,589 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:35:53,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:35:53,590 INFO L85 PathProgramCache]: Analyzing trace with hash -660634014, now seen corresponding path program 1 times [2024-12-02 14:35:53,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:35:53,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820610749] [2024-12-02 14:35:53,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:35:53,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:35:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:36:36,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:36,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820610749] [2024-12-02 14:36:36,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820610749] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:36,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:36,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:36:36,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087070456] [2024-12-02 14:36:36,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:36,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:36:36,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:36,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:36:36,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:36:36,415 INFO L87 Difference]: Start difference. First operand 1202 states and 1632 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:37,700 INFO L93 Difference]: Finished difference Result 2378 states and 3203 transitions. [2024-12-02 14:36:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:36:37,700 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:36:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:37,707 INFO L225 Difference]: With dead ends: 2378 [2024-12-02 14:36:37,707 INFO L226 Difference]: Without dead ends: 1890 [2024-12-02 14:36:37,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:36:37,709 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 417 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:37,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 707 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:36:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-12-02 14:36:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1214. [2024-12-02 14:36:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 980 states have (on average 1.2918367346938775) internal successors, (1266), 992 states have internal predecessors, (1266), 191 states have call successors, (191), 42 states have call predecessors, (191), 42 states have return successors, (191), 179 states have call predecessors, (191), 191 states have call successors, (191) [2024-12-02 14:36:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1648 transitions. [2024-12-02 14:36:37,913 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1648 transitions. Word has length 170 [2024-12-02 14:36:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:37,914 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1648 transitions. [2024-12-02 14:36:37,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1648 transitions. [2024-12-02 14:36:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:36:37,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:37,915 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:37,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 14:36:37,915 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:37,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:37,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2082288477, now seen corresponding path program 1 times [2024-12-02 14:36:37,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:37,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707297083] [2024-12-02 14:36:37,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:37,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:36:37,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707297083] [2024-12-02 14:36:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707297083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:37,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:37,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:36:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722345297] [2024-12-02 14:36:37,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:37,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:36:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:37,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:36:37,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:36:37,965 INFO L87 Difference]: Start difference. First operand 1214 states and 1648 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:38,264 INFO L93 Difference]: Finished difference Result 3015 states and 4066 transitions. [2024-12-02 14:36:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:36:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:36:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:38,270 INFO L225 Difference]: With dead ends: 3015 [2024-12-02 14:36:38,270 INFO L226 Difference]: Without dead ends: 1904 [2024-12-02 14:36:38,272 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 14:36:38,272 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 52 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:38,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 246 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:36:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-12-02 14:36:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1827. [2024-12-02 14:36:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1502 states have (on average 1.2676431424766976) internal successors, (1904), 1528 states have internal predecessors, (1904), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:36:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2422 transitions. [2024-12-02 14:36:38,556 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2422 transitions. Word has length 170 [2024-12-02 14:36:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:38,556 INFO L471 AbstractCegarLoop]: Abstraction has 1827 states and 2422 transitions. [2024-12-02 14:36:38,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:38,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2422 transitions. [2024-12-02 14:36:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:36:38,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:38,557 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:38,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 14:36:38,557 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:38,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1568881808, now seen corresponding path program 1 times [2024-12-02 14:36:38,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:38,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277045106] [2024-12-02 14:36:38,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:38,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:36:44,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:44,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277045106] [2024-12-02 14:36:44,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277045106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:44,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:44,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:36:44,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153796906] [2024-12-02 14:36:44,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:44,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:36:44,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:44,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:36:44,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:36:44,155 INFO L87 Difference]: Start difference. First operand 1827 states and 2422 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:47,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:47,298 INFO L93 Difference]: Finished difference Result 2940 states and 3825 transitions. [2024-12-02 14:36:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:36:47,298 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:36:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:47,306 INFO L225 Difference]: With dead ends: 2940 [2024-12-02 14:36:47,306 INFO L226 Difference]: Without dead ends: 2938 [2024-12-02 14:36:47,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 14:36:47,307 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 442 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:47,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 928 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:36:47,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-12-02 14:36:47,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1829. [2024-12-02 14:36:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1504 states have (on average 1.2672872340425532) internal successors, (1906), 1530 states have internal predecessors, (1906), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:36:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2424 transitions. [2024-12-02 14:36:47,630 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2424 transitions. Word has length 170 [2024-12-02 14:36:47,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:47,631 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2424 transitions. [2024-12-02 14:36:47,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2424 transitions. [2024-12-02 14:36:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:36:47,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:47,632 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:47,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 14:36:47,632 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:47,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash -289018130, now seen corresponding path program 1 times [2024-12-02 14:36:47,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275282653] [2024-12-02 14:36:47,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:47,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:36:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275282653] [2024-12-02 14:36:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275282653] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:50,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:50,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:36:50,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588117608] [2024-12-02 14:36:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:50,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:36:50,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:50,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:36:50,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:36:50,099 INFO L87 Difference]: Start difference. First operand 1829 states and 2424 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:52,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:36:52,796 INFO L93 Difference]: Finished difference Result 2822 states and 3652 transitions. [2024-12-02 14:36:52,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:36:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:36:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:36:52,803 INFO L225 Difference]: With dead ends: 2822 [2024-12-02 14:36:52,803 INFO L226 Difference]: Without dead ends: 2820 [2024-12-02 14:36:52,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:36:52,805 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 349 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:36:52,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1167 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:36:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2024-12-02 14:36:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 1849. [2024-12-02 14:36:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1524 states have (on average 1.2696850393700787) internal successors, (1935), 1550 states have internal predecessors, (1935), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:36:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2453 transitions. [2024-12-02 14:36:53,078 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2453 transitions. Word has length 170 [2024-12-02 14:36:53,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:36:53,079 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 2453 transitions. [2024-12-02 14:36:53,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:36:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2453 transitions. [2024-12-02 14:36:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:36:53,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:36:53,080 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:53,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 14:36:53,080 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:36:53,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:36:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1603580434, now seen corresponding path program 1 times [2024-12-02 14:36:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:36:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104415178] [2024-12-02 14:36:53,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:36:53,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:36:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:36:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:36:57,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:36:57,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104415178] [2024-12-02 14:36:57,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104415178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:36:57,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:36:57,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 14:36:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288613432] [2024-12-02 14:36:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:36:57,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 14:36:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:36:57,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 14:36:57,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:36:57,819 INFO L87 Difference]: Start difference. First operand 1849 states and 2453 transitions. Second operand has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:37:01,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:37:01,904 INFO L93 Difference]: Finished difference Result 2995 states and 3892 transitions. [2024-12-02 14:37:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:37:01,904 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 170 [2024-12-02 14:37:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:37:01,912 INFO L225 Difference]: With dead ends: 2995 [2024-12-02 14:37:01,912 INFO L226 Difference]: Without dead ends: 2993 [2024-12-02 14:37:01,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 14:37:01,914 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 403 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:37:01,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1443 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:37:01,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2024-12-02 14:37:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1852. [2024-12-02 14:37:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1527 states have (on average 1.2698100851342502) internal successors, (1939), 1553 states have internal predecessors, (1939), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:37:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2457 transitions. [2024-12-02 14:37:02,213 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2457 transitions. Word has length 170 [2024-12-02 14:37:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:37:02,214 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 2457 transitions. [2024-12-02 14:37:02,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:37:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2457 transitions. [2024-12-02 14:37:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:37:02,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:37:02,215 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:02,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 14:37:02,216 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:37:02,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:37:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -237932188, now seen corresponding path program 1 times [2024-12-02 14:37:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:37:02,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428889146] [2024-12-02 14:37:02,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:37:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:37:37,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:37:37,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428889146] [2024-12-02 14:37:37,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428889146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:37:37,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:37:37,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:37:37,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88782718] [2024-12-02 14:37:37,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:37:37,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:37:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:37:37,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:37:37,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:37:37,663 INFO L87 Difference]: Start difference. First operand 1852 states and 2457 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:37:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:37:44,024 INFO L93 Difference]: Finished difference Result 3036 states and 4007 transitions. [2024-12-02 14:37:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:37:44,024 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 170 [2024-12-02 14:37:44,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:37:44,028 INFO L225 Difference]: With dead ends: 3036 [2024-12-02 14:37:44,028 INFO L226 Difference]: Without dead ends: 2201 [2024-12-02 14:37:44,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:37:44,030 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 539 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:37:44,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1028 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 14:37:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2024-12-02 14:37:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 1852. [2024-12-02 14:37:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1527 states have (on average 1.2698100851342502) internal successors, (1939), 1553 states have internal predecessors, (1939), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:37:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2457 transitions. [2024-12-02 14:37:44,286 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2457 transitions. Word has length 170 [2024-12-02 14:37:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:37:44,286 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 2457 transitions. [2024-12-02 14:37:44,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 14:37:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2457 transitions. [2024-12-02 14:37:44,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:37:44,287 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:37:44,287 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:44,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 14:37:44,287 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:37:44,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:37:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 994218084, now seen corresponding path program 1 times [2024-12-02 14:37:44,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:37:44,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710602249] [2024-12-02 14:37:44,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:37:44,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:37:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:37:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:37:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:37:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710602249] [2024-12-02 14:37:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710602249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:37:58,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:37:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:37:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928345462] [2024-12-02 14:37:58,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:37:58,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:37:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:37:58,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:37:58,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:37:58,222 INFO L87 Difference]: Start difference. First operand 1852 states and 2457 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:38:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:38:00,097 INFO L93 Difference]: Finished difference Result 3656 states and 4784 transitions. [2024-12-02 14:38:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:38:00,097 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:38:00,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:38:00,104 INFO L225 Difference]: With dead ends: 3656 [2024-12-02 14:38:00,104 INFO L226 Difference]: Without dead ends: 2821 [2024-12-02 14:38:00,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:38:00,106 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 312 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:38:00,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 693 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:38:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-12-02 14:38:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 1873. [2024-12-02 14:38:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1548 states have (on average 1.2732558139534884) internal successors, (1971), 1574 states have internal predecessors, (1971), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:38:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 2489 transitions. [2024-12-02 14:38:00,385 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 2489 transitions. Word has length 170 [2024-12-02 14:38:00,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:38:00,386 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 2489 transitions. [2024-12-02 14:38:00,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:38:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 2489 transitions. [2024-12-02 14:38:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:38:00,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:38:00,387 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:00,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 14:38:00,387 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:38:00,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:38:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash 601191074, now seen corresponding path program 1 times [2024-12-02 14:38:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:38:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198566096] [2024-12-02 14:38:00,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:38:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:38:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:39:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:39:07,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:39:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198566096] [2024-12-02 14:39:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198566096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:39:07,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:39:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:39:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692927574] [2024-12-02 14:39:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:39:07,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:39:07,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:39:07,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:39:07,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:39:07,728 INFO L87 Difference]: Start difference. First operand 1873 states and 2489 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:39:10,671 INFO L93 Difference]: Finished difference Result 3218 states and 4241 transitions. [2024-12-02 14:39:10,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:39:10,671 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:39:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:39:10,676 INFO L225 Difference]: With dead ends: 3218 [2024-12-02 14:39:10,676 INFO L226 Difference]: Without dead ends: 2383 [2024-12-02 14:39:10,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:39:10,678 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 366 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:39:10,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 700 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:39:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-12-02 14:39:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 1878. [2024-12-02 14:39:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1553 states have (on average 1.274307791371539) internal successors, (1979), 1579 states have internal predecessors, (1979), 259 states have call successors, (259), 65 states have call predecessors, (259), 65 states have return successors, (259), 233 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 14:39:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2497 transitions. [2024-12-02 14:39:10,944 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2497 transitions. Word has length 170 [2024-12-02 14:39:10,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:39:10,944 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2497 transitions. [2024-12-02 14:39:10,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2497 transitions. [2024-12-02 14:39:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:39:10,945 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:39:10,945 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:10,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 14:39:10,945 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:39:10,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:39:10,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1146179982, now seen corresponding path program 1 times [2024-12-02 14:39:10,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:39:10,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225200823] [2024-12-02 14:39:10,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:39:10,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:39:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:39:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:39:12,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:39:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225200823] [2024-12-02 14:39:12,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225200823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:39:12,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:39:12,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:39:12,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405476365] [2024-12-02 14:39:12,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:39:12,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:39:12,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:39:12,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:39:12,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:39:12,432 INFO L87 Difference]: Start difference. First operand 1878 states and 2497 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:39:13,454 INFO L93 Difference]: Finished difference Result 2979 states and 3930 transitions. [2024-12-02 14:39:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:39:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:39:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:39:13,461 INFO L225 Difference]: With dead ends: 2979 [2024-12-02 14:39:13,461 INFO L226 Difference]: Without dead ends: 2144 [2024-12-02 14:39:13,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:39:13,463 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 153 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:39:13,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1057 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:39:13,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2024-12-02 14:39:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1798. [2024-12-02 14:39:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1491 states have (on average 1.2689470154258886) internal successors, (1892), 1515 states have internal predecessors, (1892), 245 states have call successors, (245), 61 states have call predecessors, (245), 61 states have return successors, (245), 221 states have call predecessors, (245), 245 states have call successors, (245) [2024-12-02 14:39:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2382 transitions. [2024-12-02 14:39:13,728 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2382 transitions. Word has length 170 [2024-12-02 14:39:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:39:13,728 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2382 transitions. [2024-12-02 14:39:13,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2382 transitions. [2024-12-02 14:39:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:39:13,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:39:13,730 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:13,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 14:39:13,730 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:39:13,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:39:13,730 INFO L85 PathProgramCache]: Analyzing trace with hash 133683696, now seen corresponding path program 1 times [2024-12-02 14:39:13,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:39:13,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696041584] [2024-12-02 14:39:13,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:39:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:39:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:39:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:39:17,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:39:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696041584] [2024-12-02 14:39:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696041584] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:39:17,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:39:17,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:39:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137411817] [2024-12-02 14:39:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:39:17,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:39:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:39:17,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:39:17,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:39:17,049 INFO L87 Difference]: Start difference. First operand 1798 states and 2382 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 14:39:19,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:39:19,572 INFO L93 Difference]: Finished difference Result 2394 states and 3065 transitions. [2024-12-02 14:39:19,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:39:19,573 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 170 [2024-12-02 14:39:19,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:39:19,577 INFO L225 Difference]: With dead ends: 2394 [2024-12-02 14:39:19,577 INFO L226 Difference]: Without dead ends: 2392 [2024-12-02 14:39:19,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 14:39:19,578 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 301 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:39:19,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1139 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:39:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-12-02 14:39:19,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 1403. [2024-12-02 14:39:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1183 states have (on average 1.2874049027895182) internal successors, (1523), 1191 states have internal predecessors, (1523), 169 states have call successors, (169), 50 states have call predecessors, (169), 50 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2024-12-02 14:39:19,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1861 transitions. [2024-12-02 14:39:19,744 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1861 transitions. Word has length 170 [2024-12-02 14:39:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:39:19,744 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1861 transitions. [2024-12-02 14:39:19,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 14:39:19,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1861 transitions. [2024-12-02 14:39:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 14:39:19,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:39:19,745 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:19,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 14:39:19,745 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:39:19,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:39:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1180878608, now seen corresponding path program 1 times [2024-12-02 14:39:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:39:19,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356077354] [2024-12-02 14:39:19,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:39:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:39:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:39:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 14:39:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:39:21,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356077354] [2024-12-02 14:39:21,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356077354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:39:21,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:39:21,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:39:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367053678] [2024-12-02 14:39:21,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:39:21,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:39:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:39:21,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:39:21,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:39:21,663 INFO L87 Difference]: Start difference. First operand 1403 states and 1861 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:39:22,759 INFO L93 Difference]: Finished difference Result 1773 states and 2311 transitions. [2024-12-02 14:39:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:39:22,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 170 [2024-12-02 14:39:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:39:22,764 INFO L225 Difference]: With dead ends: 1773 [2024-12-02 14:39:22,764 INFO L226 Difference]: Without dead ends: 1771 [2024-12-02 14:39:22,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:39:22,764 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 92 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:39:22,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 983 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:39:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2024-12-02 14:39:23,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1661. [2024-12-02 14:39:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1381 states have (on average 1.2664735698769007) internal successors, (1749), 1395 states have internal predecessors, (1749), 211 states have call successors, (211), 68 states have call predecessors, (211), 68 states have return successors, (211), 197 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 14:39:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2171 transitions. [2024-12-02 14:39:23,060 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2171 transitions. Word has length 170 [2024-12-02 14:39:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:39:23,060 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2171 transitions. [2024-12-02 14:39:23,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 14:39:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2171 transitions. [2024-12-02 14:39:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 14:39:23,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:39:23,061 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:23,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 14:39:23,061 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:39:23,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:39:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1822135451, now seen corresponding path program 1 times [2024-12-02 14:39:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:39:23,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960787107] [2024-12-02 14:39:23,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:39:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:39:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat