./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/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_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/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 64bit --witnessprinter.graph.data.programhash 0c133b27c7efeadfcaea81391b0d2d6a8c00716cf93dc15fdb9df210e73da113 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:45:05,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:45:06,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:45:06,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:45:06,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:45:06,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:45:06,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:45:06,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:45:06,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:45:06,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:45:06,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:45:06,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:45:06,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:45:06,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:45:06,068 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:45:06,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:45:06,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:45:06,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:45:06,069 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:45:06,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:45:06,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:45:06,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:45:06,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:45:06,071 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_2d03a707-f27b-401a-851a-a88d8607cd38/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c133b27c7efeadfcaea81391b0d2d6a8c00716cf93dc15fdb9df210e73da113 [2024-12-02 08:45:06,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:45:06,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:45:06,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:45:06,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:45:06,281 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:45:06,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c [2024-12-02 08:45:08,955 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/data/61f5ae3be/c275c84f0c9f439a80ac5b32244cd114/FLAG2beddc46b [2024-12-02 08:45:09,326 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:45:09,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c [2024-12-02 08:45:09,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/data/61f5ae3be/c275c84f0c9f439a80ac5b32244cd114/FLAG2beddc46b [2024-12-02 08:45:09,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/data/61f5ae3be/c275c84f0c9f439a80ac5b32244cd114 [2024-12-02 08:45:09,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:45:09,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:45:09,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:45:09,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:45:09,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:45:09,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:45:09" (1/1) ... [2024-12-02 08:45:09,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fecf9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:09, skipping insertion in model container [2024-12-02 08:45:09,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:45:09" (1/1) ... [2024-12-02 08:45:09,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:45:09,846 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_2d03a707-f27b-401a-851a-a88d8607cd38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c[1177,1190] [2024-12-02 08:45:10,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:45:10,430 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:45:10,437 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_2d03a707-f27b-401a-851a-a88d8607cd38/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c[1177,1190] [2024-12-02 08:45:10,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:45:10,995 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:45:10,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10 WrapperNode [2024-12-02 08:45:10,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:45:10,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:45:10,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:45:10,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:45:11,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:11,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:12,542 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20610 [2024-12-02 08:45:12,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:45:12,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:45:12,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:45:12,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:45:12,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:12,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:12,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,210 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 08:45:13,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:13,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:14,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:45:14,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:45:14,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:45:14,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:45:14,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (1/1) ... [2024-12-02 08:45:14,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:45:14,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:45:14,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:45:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d03a707-f27b-401a-851a-a88d8607cd38/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:45:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:45:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:45:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:45:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:45:15,403 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:45:15,405 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:46:01,652 INFO L? ?]: Removed 11623 outVars from TransFormulas that were not future-live. [2024-12-02 08:46:01,652 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:46:01,731 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:46:01,731 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:46:01,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:46:01 BoogieIcfgContainer [2024-12-02 08:46:01,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:46:01,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:46:01,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:46:01,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:46:01,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:45:09" (1/3) ... [2024-12-02 08:46:01,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2248075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:46:01, skipping insertion in model container [2024-12-02 08:46:01,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:45:10" (2/3) ... [2024-12-02 08:46:01,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2248075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:46:01, skipping insertion in model container [2024-12-02 08:46:01,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:46:01" (3/3) ... [2024-12-02 08:46:01,741 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.4.prop1-back-serstep.c [2024-12-02 08:46:01,757 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:46:01,758 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.szymanski.4.prop1-back-serstep.c that has 1 procedures, 6894 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:46:01,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:46:01,917 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;@364175ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:46:01,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:46:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 6894 states, 6892 states have (on average 1.4998549042367963) internal successors, (10337), 6893 states have internal predecessors, (10337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-12-02 08:46:01,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:01,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:01,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:01,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1844682639, now seen corresponding path program 1 times [2024-12-02 08:46:01,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:01,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220989876] [2024-12-02 08:46:01,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:05,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:05,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220989876] [2024-12-02 08:46:05,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220989876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488173963] [2024-12-02 08:46:05,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:05,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:05,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:05,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:05,346 INFO L87 Difference]: Start difference. First operand has 6894 states, 6892 states have (on average 1.4998549042367963) internal successors, (10337), 6893 states have internal predecessors, (10337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:05,621 INFO L93 Difference]: Finished difference Result 13505 states and 20253 transitions. [2024-12-02 08:46:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:05,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 643 [2024-12-02 08:46:05,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:05,657 INFO L225 Difference]: With dead ends: 13505 [2024-12-02 08:46:05,657 INFO L226 Difference]: Without dead ends: 6893 [2024-12-02 08:46:05,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:05,671 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20656 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30987 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:05,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30987 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6893 states. [2024-12-02 08:46:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6893. [2024-12-02 08:46:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6893 states, 6892 states have (on average 1.4995647127103888) internal successors, (10335), 6892 states have internal predecessors, (10335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6893 states to 6893 states and 10335 transitions. [2024-12-02 08:46:05,861 INFO L78 Accepts]: Start accepts. Automaton has 6893 states and 10335 transitions. Word has length 643 [2024-12-02 08:46:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:05,862 INFO L471 AbstractCegarLoop]: Abstraction has 6893 states and 10335 transitions. [2024-12-02 08:46:05,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 6893 states and 10335 transitions. [2024-12-02 08:46:05,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-12-02 08:46:05,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:05,876 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:05,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:46:05,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:05,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1348887661, now seen corresponding path program 1 times [2024-12-02 08:46:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:05,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553194512] [2024-12-02 08:46:05,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:05,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:06,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:06,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553194512] [2024-12-02 08:46:06,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553194512] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:06,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:06,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:06,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435072856] [2024-12-02 08:46:06,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:06,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:06,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:06,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:06,876 INFO L87 Difference]: Start difference. First operand 6893 states and 10335 transitions. Second operand has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:07,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:07,059 INFO L93 Difference]: Finished difference Result 13506 states and 20251 transitions. [2024-12-02 08:46:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:07,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 644 [2024-12-02 08:46:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:07,076 INFO L225 Difference]: With dead ends: 13506 [2024-12-02 08:46:07,076 INFO L226 Difference]: Without dead ends: 6895 [2024-12-02 08:46:07,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:07,083 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:07,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2024-12-02 08:46:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6895. [2024-12-02 08:46:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6895 states, 6894 states have (on average 1.4994197853205686) internal successors, (10337), 6894 states have internal predecessors, (10337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 10337 transitions. [2024-12-02 08:46:07,206 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 10337 transitions. Word has length 644 [2024-12-02 08:46:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:07,207 INFO L471 AbstractCegarLoop]: Abstraction has 6895 states and 10337 transitions. [2024-12-02 08:46:07,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 10337 transitions. [2024-12-02 08:46:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-12-02 08:46:07,213 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:07,213 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:07,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:46:07,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:07,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:07,214 INFO L85 PathProgramCache]: Analyzing trace with hash 36193674, now seen corresponding path program 1 times [2024-12-02 08:46:07,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:07,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382970316] [2024-12-02 08:46:07,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:07,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:08,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:08,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382970316] [2024-12-02 08:46:08,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382970316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:08,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:08,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:08,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501687473] [2024-12-02 08:46:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:08,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:08,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:08,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:08,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:08,414 INFO L87 Difference]: Start difference. First operand 6895 states and 10337 transitions. Second operand has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:08,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:08,652 INFO L93 Difference]: Finished difference Result 13510 states and 20255 transitions. [2024-12-02 08:46:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:08,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 645 [2024-12-02 08:46:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:08,679 INFO L225 Difference]: With dead ends: 13510 [2024-12-02 08:46:08,680 INFO L226 Difference]: Without dead ends: 6897 [2024-12-02 08:46:08,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:08,688 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:08,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2024-12-02 08:46:08,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6897. [2024-12-02 08:46:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 6896 states have (on average 1.4992749419953597) internal successors, (10339), 6896 states have internal predecessors, (10339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 10339 transitions. [2024-12-02 08:46:08,857 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 10339 transitions. Word has length 645 [2024-12-02 08:46:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:08,858 INFO L471 AbstractCegarLoop]: Abstraction has 6897 states and 10339 transitions. [2024-12-02 08:46:08,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 10339 transitions. [2024-12-02 08:46:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-12-02 08:46:08,866 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:08,866 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:08,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:46:08,866 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:08,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:08,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2030894842, now seen corresponding path program 1 times [2024-12-02 08:46:08,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:08,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068960815] [2024-12-02 08:46:08,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:46:10,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:10,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068960815] [2024-12-02 08:46:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068960815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:10,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:10,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:46:10,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848984796] [2024-12-02 08:46:10,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:46:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:10,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:46:10,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:46:10,199 INFO L87 Difference]: Start difference. First operand 6897 states and 10339 transitions. Second operand has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:10,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:10,681 INFO L93 Difference]: Finished difference Result 20105 states and 30142 transitions. [2024-12-02 08:46:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:46:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 646 [2024-12-02 08:46:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:10,720 INFO L225 Difference]: With dead ends: 20105 [2024-12-02 08:46:10,720 INFO L226 Difference]: Without dead ends: 13490 [2024-12-02 08:46:10,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:46:10,730 INFO L435 NwaCegarLoop]: 10329 mSDtfsCounter, 9667 mSDsluCounter, 40883 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9667 SdHoareTripleChecker+Valid, 51212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:10,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9667 Valid, 51212 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:46:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13490 states. [2024-12-02 08:46:10,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13490 to 7885. [2024-12-02 08:46:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7885 states, 7884 states have (on average 1.4993658041603246) internal successors, (11821), 7884 states have internal predecessors, (11821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7885 states to 7885 states and 11821 transitions. [2024-12-02 08:46:10,949 INFO L78 Accepts]: Start accepts. Automaton has 7885 states and 11821 transitions. Word has length 646 [2024-12-02 08:46:10,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:10,951 INFO L471 AbstractCegarLoop]: Abstraction has 7885 states and 11821 transitions. [2024-12-02 08:46:10,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7885 states and 11821 transitions. [2024-12-02 08:46:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3952 [2024-12-02 08:46:11,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:11,062 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:11,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:46:11,062 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:11,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:11,065 INFO L85 PathProgramCache]: Analyzing trace with hash 27550416, now seen corresponding path program 1 times [2024-12-02 08:46:11,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:11,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951948216] [2024-12-02 08:46:11,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:11,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-12-02 08:46:30,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:30,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951948216] [2024-12-02 08:46:30,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951948216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:30,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:30,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:30,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353215092] [2024-12-02 08:46:30,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:30,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:30,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:30,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:30,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:30,623 INFO L87 Difference]: Start difference. First operand 7885 states and 11821 transitions. Second operand has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:30,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:30,782 INFO L93 Difference]: Finished difference Result 14506 states and 21747 transitions. [2024-12-02 08:46:30,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:30,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3951 [2024-12-02 08:46:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:30,801 INFO L225 Difference]: With dead ends: 14506 [2024-12-02 08:46:30,801 INFO L226 Difference]: Without dead ends: 7889 [2024-12-02 08:46:30,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:30,808 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:30,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7889 states. [2024-12-02 08:46:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 7887. [2024-12-02 08:46:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7886 states have (on average 1.4992391580015216) internal successors, (11823), 7886 states have internal predecessors, (11823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 11823 transitions. [2024-12-02 08:46:30,941 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 11823 transitions. Word has length 3951 [2024-12-02 08:46:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:30,946 INFO L471 AbstractCegarLoop]: Abstraction has 7887 states and 11823 transitions. [2024-12-02 08:46:30,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 11823 transitions. [2024-12-02 08:46:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3953 [2024-12-02 08:46:31,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:31,104 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:31,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:46:31,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:31,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:31,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1968260237, now seen corresponding path program 1 times [2024-12-02 08:46:31,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:31,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488845225] [2024-12-02 08:46:31,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:31,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-12-02 08:46:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:46:45,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488845225] [2024-12-02 08:46:45,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488845225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:45,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:45,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:46:45,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970731445] [2024-12-02 08:46:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:45,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:46:45,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:46:45,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:46:45,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:46:45,776 INFO L87 Difference]: Start difference. First operand 7887 states and 11823 transitions. Second operand has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:45,891 INFO L93 Difference]: Finished difference Result 14514 states and 21757 transitions. [2024-12-02 08:46:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:45,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3952 [2024-12-02 08:46:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:45,916 INFO L225 Difference]: With dead ends: 14514 [2024-12-02 08:46:45,916 INFO L226 Difference]: Without dead ends: 7891 [2024-12-02 08:46:45,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:46:45,923 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:45,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7891 states. [2024-12-02 08:46:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7891 to 7889. [2024-12-02 08:46:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7889 states, 7888 states have (on average 1.4991125760649087) internal successors, (11825), 7888 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 11825 transitions. [2024-12-02 08:46:46,044 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 11825 transitions. Word has length 3952 [2024-12-02 08:46:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:46,047 INFO L471 AbstractCegarLoop]: Abstraction has 7889 states and 11825 transitions. [2024-12-02 08:46:46,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:46:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 11825 transitions. [2024-12-02 08:46:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3954 [2024-12-02 08:46:46,156 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:46,158 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:46,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:46:46,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2044920393, now seen corresponding path program 1 times [2024-12-02 08:46:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:46:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542489498] [2024-12-02 08:46:46,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:46,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:46:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2024-12-02 08:47:00,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:00,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542489498] [2024-12-02 08:47:00,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542489498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:00,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:00,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:47:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312960840] [2024-12-02 08:47:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:00,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:47:00,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:00,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:47:00,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:47:00,621 INFO L87 Difference]: Start difference. First operand 7889 states and 11825 transitions. Second operand has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:00,844 INFO L93 Difference]: Finished difference Result 14522 states and 21767 transitions. [2024-12-02 08:47:00,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:00,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3953 [2024-12-02 08:47:00,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:00,865 INFO L225 Difference]: With dead ends: 14522 [2024-12-02 08:47:00,865 INFO L226 Difference]: Without dead ends: 7893 [2024-12-02 08:47:00,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:47:00,873 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:00,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:47:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7893 states. [2024-12-02 08:47:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7893 to 7891. [2024-12-02 08:47:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7891 states, 7890 states have (on average 1.4989860583016477) internal successors, (11827), 7890 states have internal predecessors, (11827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 11827 transitions. [2024-12-02 08:47:00,994 INFO L78 Accepts]: Start accepts. Automaton has 7891 states and 11827 transitions. Word has length 3953 [2024-12-02 08:47:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:00,997 INFO L471 AbstractCegarLoop]: Abstraction has 7891 states and 11827 transitions. [2024-12-02 08:47:00,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7891 states and 11827 transitions. [2024-12-02 08:47:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3955 [2024-12-02 08:47:01,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:01,120 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:01,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:47:01,120 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:01,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash -275944154, now seen corresponding path program 1 times [2024-12-02 08:47:01,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:01,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006999313] [2024-12-02 08:47:01,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:01,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-12-02 08:47:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006999313] [2024-12-02 08:47:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006999313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:15,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:15,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689826535] [2024-12-02 08:47:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:15,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:15,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:15,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:15,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:15,828 INFO L87 Difference]: Start difference. First operand 7891 states and 11827 transitions. Second operand has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:16,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:16,094 INFO L93 Difference]: Finished difference Result 14530 states and 21777 transitions. [2024-12-02 08:47:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:16,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3954 [2024-12-02 08:47:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:16,109 INFO L225 Difference]: With dead ends: 14530 [2024-12-02 08:47:16,109 INFO L226 Difference]: Without dead ends: 7895 [2024-12-02 08:47:16,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:16,114 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 30977 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41308 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:16,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41308 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:47:16,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7895 states. [2024-12-02 08:47:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7895 to 7893. [2024-12-02 08:47:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7893 states, 7892 states have (on average 1.4988596046629499) internal successors, (11829), 7892 states have internal predecessors, (11829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:16,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7893 states to 7893 states and 11829 transitions. [2024-12-02 08:47:16,201 INFO L78 Accepts]: Start accepts. Automaton has 7893 states and 11829 transitions. Word has length 3954 [2024-12-02 08:47:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:16,205 INFO L471 AbstractCegarLoop]: Abstraction has 7893 states and 11829 transitions. [2024-12-02 08:47:16,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7893 states and 11829 transitions. [2024-12-02 08:47:16,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3956 [2024-12-02 08:47:16,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:16,312 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:16,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:47:16,312 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:16,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:16,315 INFO L85 PathProgramCache]: Analyzing trace with hash -489980514, now seen corresponding path program 1 times [2024-12-02 08:47:16,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:16,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769845955] [2024-12-02 08:47:16,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:16,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 08:47:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:30,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769845955] [2024-12-02 08:47:30,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769845955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:30,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549795281] [2024-12-02 08:47:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:30,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:30,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:30,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:30,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:30,750 INFO L87 Difference]: Start difference. First operand 7893 states and 11829 transitions. Second operand has 5 states, 5 states have (on average 694.4) internal successors, (3472), 5 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:30,901 INFO L93 Difference]: Finished difference Result 14538 states and 21787 transitions. [2024-12-02 08:47:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:30,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 694.4) internal successors, (3472), 5 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3955 [2024-12-02 08:47:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:30,916 INFO L225 Difference]: With dead ends: 14538 [2024-12-02 08:47:30,916 INFO L226 Difference]: Without dead ends: 7897 [2024-12-02 08:47:30,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:30,924 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 30977 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41308 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:30,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41308 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:47:30,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2024-12-02 08:47:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7895. [2024-12-02 08:47:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7894 states have (on average 1.498733215100076) internal successors, (11831), 7894 states have internal predecessors, (11831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 11831 transitions. [2024-12-02 08:47:31,044 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 11831 transitions. Word has length 3955 [2024-12-02 08:47:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:31,048 INFO L471 AbstractCegarLoop]: Abstraction has 7895 states and 11831 transitions. [2024-12-02 08:47:31,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 694.4) internal successors, (3472), 5 states have internal predecessors, (3472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 11831 transitions. [2024-12-02 08:47:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3957 [2024-12-02 08:47:31,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:31,557 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:31,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:47:31,557 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:31,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:31,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1729157311, now seen corresponding path program 1 times [2024-12-02 08:47:31,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:31,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031534902] [2024-12-02 08:47:31,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:31,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-12-02 08:47:46,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:46,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031534902] [2024-12-02 08:47:46,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031534902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:46,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:46,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:46,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813020813] [2024-12-02 08:47:46,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:46,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:46,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:46,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:46,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:46,161 INFO L87 Difference]: Start difference. First operand 7895 states and 11831 transitions. Second operand has 5 states, 5 states have (on average 695.0) internal successors, (3475), 5 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:46,315 INFO L93 Difference]: Finished difference Result 14546 states and 21797 transitions. [2024-12-02 08:47:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:46,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 695.0) internal successors, (3475), 5 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3956 [2024-12-02 08:47:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:46,335 INFO L225 Difference]: With dead ends: 14546 [2024-12-02 08:47:46,335 INFO L226 Difference]: Without dead ends: 7899 [2024-12-02 08:47:46,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:46,342 INFO L435 NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 30977 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41308 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:46,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41308 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:47:46,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7899 states. [2024-12-02 08:47:46,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7899 to 7897. [2024-12-02 08:47:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7897 states, 7896 states have (on average 1.4986068895643363) internal successors, (11833), 7896 states have internal predecessors, (11833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7897 states to 7897 states and 11833 transitions. [2024-12-02 08:47:46,456 INFO L78 Accepts]: Start accepts. Automaton has 7897 states and 11833 transitions. Word has length 3956 [2024-12-02 08:47:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:46,460 INFO L471 AbstractCegarLoop]: Abstraction has 7897 states and 11833 transitions. [2024-12-02 08:47:46,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 695.0) internal successors, (3475), 5 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:47:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7897 states and 11833 transitions. [2024-12-02 08:47:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3958 [2024-12-02 08:47:46,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:46,664 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:46,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:47:46,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:46,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:46,668 INFO L85 PathProgramCache]: Analyzing trace with hash -500329851, now seen corresponding path program 1 times [2024-12-02 08:47:46,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:46,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924202689] [2024-12-02 08:47:46,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:46,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:48:54,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:54,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924202689] [2024-12-02 08:48:54,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924202689] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:54,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:54,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:48:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280115779] [2024-12-02 08:48:54,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:54,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:48:54,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:54,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:48:54,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:48:54,869 INFO L87 Difference]: Start difference. First operand 7897 states and 11833 transitions. Second operand has 4 states, 4 states have (on average 989.25) internal successors, (3957), 4 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:48:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:57,830 INFO L93 Difference]: Finished difference Result 20231 states and 30313 transitions. [2024-12-02 08:48:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:48:57,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 989.25) internal successors, (3957), 4 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3957 [2024-12-02 08:48:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:57,838 INFO L225 Difference]: With dead ends: 20231 [2024-12-02 08:48:57,838 INFO L226 Difference]: Without dead ends: 7897 [2024-12-02 08:48:57,844 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 08:48:57,845 INFO L435 NwaCegarLoop]: 17942 mSDtfsCounter, 7572 mSDsluCounter, 25710 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7572 SdHoareTripleChecker+Valid, 43652 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:57,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7572 Valid, 43652 Invalid, 3943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 3486 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 08:48:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2024-12-02 08:48:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7897. [2024-12-02 08:48:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7897 states, 7896 states have (on average 1.4984802431610942) internal successors, (11832), 7896 states have internal predecessors, (11832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:48:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7897 states to 7897 states and 11832 transitions. [2024-12-02 08:48:57,934 INFO L78 Accepts]: Start accepts. Automaton has 7897 states and 11832 transitions. Word has length 3957 [2024-12-02 08:48:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:57,937 INFO L471 AbstractCegarLoop]: Abstraction has 7897 states and 11832 transitions. [2024-12-02 08:48:57,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 989.25) internal successors, (3957), 4 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:48:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 7897 states and 11832 transitions. [2024-12-02 08:48:58,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3959 [2024-12-02 08:48:58,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:58,027 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:58,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:48:58,027 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:58,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1242622185, now seen corresponding path program 1 times [2024-12-02 08:48:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:58,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56145657] [2024-12-02 08:48:58,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:49:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:49:48,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:49:48,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56145657] [2024-12-02 08:49:48,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56145657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:49:48,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:49:48,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:49:48,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543217499] [2024-12-02 08:49:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:48,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:49:48,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:49:48,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:49:48,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:49:48,655 INFO L87 Difference]: Start difference. First operand 7897 states and 11832 transitions. Second operand has 4 states, 4 states have (on average 989.5) internal successors, (3958), 4 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:49:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:51,579 INFO L93 Difference]: Finished difference Result 17090 states and 25608 transitions. [2024-12-02 08:49:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:49:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 989.5) internal successors, (3958), 4 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3958 [2024-12-02 08:49:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:51,588 INFO L225 Difference]: With dead ends: 17090 [2024-12-02 08:49:51,588 INFO L226 Difference]: Without dead ends: 7897 [2024-12-02 08:49:51,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:49:51,593 INFO L435 NwaCegarLoop]: 10199 mSDtfsCounter, 2310 mSDsluCounter, 17962 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 28161 SdHoareTripleChecker+Invalid, 2959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:51,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 28161 Invalid, 2959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 08:49:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2024-12-02 08:49:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7897. [2024-12-02 08:49:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7897 states, 7896 states have (on average 1.498353596757852) internal successors, (11831), 7896 states have internal predecessors, (11831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:49:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7897 states to 7897 states and 11831 transitions. [2024-12-02 08:49:51,692 INFO L78 Accepts]: Start accepts. Automaton has 7897 states and 11831 transitions. Word has length 3958 [2024-12-02 08:49:51,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:51,694 INFO L471 AbstractCegarLoop]: Abstraction has 7897 states and 11831 transitions. [2024-12-02 08:49:51,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 989.5) internal successors, (3958), 4 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:49:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7897 states and 11831 transitions. [2024-12-02 08:49:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3960 [2024-12-02 08:49:51,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:51,873 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:51,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:49:51,874 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:51,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1544500745, now seen corresponding path program 1 times [2024-12-02 08:49:51,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:49:51,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761348933] [2024-12-02 08:49:51,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:51,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:49:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 08:50:06,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:50:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761348933] [2024-12-02 08:50:06,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761348933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:06,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:06,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:50:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658703811] [2024-12-02 08:50:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:06,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:50:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:50:06,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:50:06,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:06,817 INFO L87 Difference]: Start difference. First operand 7897 states and 11831 transitions. Second operand has 5 states, 5 states have (on average 696.0) internal successors, (3480), 5 states have internal predecessors, (3480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:06,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:06,927 INFO L93 Difference]: Finished difference Result 14554 states and 21803 transitions. [2024-12-02 08:50:06,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:50:06,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 696.0) internal successors, (3480), 5 states have internal predecessors, (3480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3959 [2024-12-02 08:50:06,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:06,936 INFO L225 Difference]: With dead ends: 14554 [2024-12-02 08:50:06,936 INFO L226 Difference]: Without dead ends: 7901 [2024-12-02 08:50:06,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:06,941 INFO L435 NwaCegarLoop]: 10329 mSDtfsCounter, 0 mSDsluCounter, 20648 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30977 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:06,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30977 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:50:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7901 states. [2024-12-02 08:50:07,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7901 to 7899. [2024-12-02 08:50:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7899 states, 7898 states have (on average 1.4982273993416055) internal successors, (11833), 7898 states have internal predecessors, (11833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7899 states to 7899 states and 11833 transitions. [2024-12-02 08:50:07,123 INFO L78 Accepts]: Start accepts. Automaton has 7899 states and 11833 transitions. Word has length 3959 [2024-12-02 08:50:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:07,125 INFO L471 AbstractCegarLoop]: Abstraction has 7899 states and 11833 transitions. [2024-12-02 08:50:07,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 696.0) internal successors, (3480), 5 states have internal predecessors, (3480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7899 states and 11833 transitions. [2024-12-02 08:50:07,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3961 [2024-12-02 08:50:07,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:07,189 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:07,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:50:07,189 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:07,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash 389123622, now seen corresponding path program 1 times [2024-12-02 08:50:07,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:50:07,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661912557] [2024-12-02 08:50:07,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:07,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2024-12-02 08:50:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:50:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661912557] [2024-12-02 08:50:22,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661912557] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:22,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:50:22,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478804167] [2024-12-02 08:50:22,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:22,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:50:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:50:22,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:50:22,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:22,316 INFO L87 Difference]: Start difference. First operand 7899 states and 11833 transitions. Second operand has 5 states, 5 states have (on average 696.6) internal successors, (3483), 5 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:22,448 INFO L93 Difference]: Finished difference Result 14562 states and 21813 transitions. [2024-12-02 08:50:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:50:22,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 696.6) internal successors, (3483), 5 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3960 [2024-12-02 08:50:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:22,457 INFO L225 Difference]: With dead ends: 14562 [2024-12-02 08:50:22,457 INFO L226 Difference]: Without dead ends: 7903 [2024-12-02 08:50:22,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:22,461 INFO L435 NwaCegarLoop]: 10329 mSDtfsCounter, 0 mSDsluCounter, 30971 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41300 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:22,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41300 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:50:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2024-12-02 08:50:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7901. [2024-12-02 08:50:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7901 states, 7900 states have (on average 1.4981012658227848) internal successors, (11835), 7900 states have internal predecessors, (11835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7901 states to 7901 states and 11835 transitions. [2024-12-02 08:50:22,531 INFO L78 Accepts]: Start accepts. Automaton has 7901 states and 11835 transitions. Word has length 3960 [2024-12-02 08:50:22,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:22,533 INFO L471 AbstractCegarLoop]: Abstraction has 7901 states and 11835 transitions. [2024-12-02 08:50:22,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 696.6) internal successors, (3483), 5 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7901 states and 11835 transitions. [2024-12-02 08:50:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3962 [2024-12-02 08:50:22,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:22,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:22,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:50:22,601 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:22,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:22,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1980493986, now seen corresponding path program 1 times [2024-12-02 08:50:22,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:50:22,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902164128] [2024-12-02 08:50:22,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:22,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-12-02 08:50:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:50:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902164128] [2024-12-02 08:50:36,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902164128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:36,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:36,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:50:36,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419430299] [2024-12-02 08:50:36,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:36,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:50:36,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:50:36,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:50:36,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:36,459 INFO L87 Difference]: Start difference. First operand 7901 states and 11835 transitions. Second operand has 5 states, 5 states have (on average 697.2) internal successors, (3486), 5 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:36,586 INFO L93 Difference]: Finished difference Result 14570 states and 21823 transitions. [2024-12-02 08:50:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:50:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 697.2) internal successors, (3486), 5 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3961 [2024-12-02 08:50:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:36,595 INFO L225 Difference]: With dead ends: 14570 [2024-12-02 08:50:36,595 INFO L226 Difference]: Without dead ends: 7905 [2024-12-02 08:50:36,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:36,599 INFO L435 NwaCegarLoop]: 10329 mSDtfsCounter, 0 mSDsluCounter, 30971 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41300 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:36,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41300 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:50:36,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7905 states. [2024-12-02 08:50:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7905 to 7903. [2024-12-02 08:50:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7903 states, 7902 states have (on average 1.4979751961528727) internal successors, (11837), 7902 states have internal predecessors, (11837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7903 states to 7903 states and 11837 transitions. [2024-12-02 08:50:36,669 INFO L78 Accepts]: Start accepts. Automaton has 7903 states and 11837 transitions. Word has length 3961 [2024-12-02 08:50:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:36,671 INFO L471 AbstractCegarLoop]: Abstraction has 7903 states and 11837 transitions. [2024-12-02 08:50:36,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 697.2) internal successors, (3486), 5 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7903 states and 11837 transitions. [2024-12-02 08:50:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3963 [2024-12-02 08:50:36,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:36,742 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:36,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:50:36,742 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:36,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2006453185, now seen corresponding path program 1 times [2024-12-02 08:50:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:50:36,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993642984] [2024-12-02 08:50:36,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:36,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:51:07,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993642984] [2024-12-02 08:51:07,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993642984] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:07,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:51:07,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:51:07,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460864260] [2024-12-02 08:51:07,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:07,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:51:07,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:07,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:51:07,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:51:07,306 INFO L87 Difference]: Start difference. First operand 7903 states and 11837 transitions. Second operand has 4 states, 4 states have (on average 990.5) internal successors, (3962), 4 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:09,891 INFO L93 Difference]: Finished difference Result 16558 states and 24802 transitions. [2024-12-02 08:51:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:51:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 990.5) internal successors, (3962), 4 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3962 [2024-12-02 08:51:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:09,898 INFO L225 Difference]: With dead ends: 16558 [2024-12-02 08:51:09,898 INFO L226 Difference]: Without dead ends: 7903 [2024-12-02 08:51:09,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:51:09,905 INFO L435 NwaCegarLoop]: 10192 mSDtfsCounter, 1754 mSDsluCounter, 17955 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 28147 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:09,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 28147 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 08:51:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7903 states. [2024-12-02 08:51:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7903 to 7903. [2024-12-02 08:51:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7903 states, 7902 states have (on average 1.4978486459124272) internal successors, (11836), 7902 states have internal predecessors, (11836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7903 states to 7903 states and 11836 transitions. [2024-12-02 08:51:09,993 INFO L78 Accepts]: Start accepts. Automaton has 7903 states and 11836 transitions. Word has length 3962 [2024-12-02 08:51:09,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:09,994 INFO L471 AbstractCegarLoop]: Abstraction has 7903 states and 11836 transitions. [2024-12-02 08:51:09,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 990.5) internal successors, (3962), 4 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7903 states and 11836 transitions. [2024-12-02 08:51:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3964 [2024-12-02 08:51:10,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:10,061 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:10,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:51:10,062 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:10,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:10,064 INFO L85 PathProgramCache]: Analyzing trace with hash -31787820, now seen corresponding path program 1 times [2024-12-02 08:51:10,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:10,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442466340] [2024-12-02 08:51:10,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:10,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-12-02 08:51:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:25,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442466340] [2024-12-02 08:51:25,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442466340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:25,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:51:25,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:51:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059809227] [2024-12-02 08:51:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:25,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:25,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:25,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:25,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:25,941 INFO L87 Difference]: Start difference. First operand 7903 states and 11836 transitions. Second operand has 5 states, 5 states have (on average 698.0) internal successors, (3490), 5 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:26,100 INFO L93 Difference]: Finished difference Result 14578 states and 21831 transitions. [2024-12-02 08:51:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:51:26,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 698.0) internal successors, (3490), 5 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3963 [2024-12-02 08:51:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:26,113 INFO L225 Difference]: With dead ends: 14578 [2024-12-02 08:51:26,113 INFO L226 Difference]: Without dead ends: 7907 [2024-12-02 08:51:26,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:26,120 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 30968 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41296 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:26,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41296 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:51:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2024-12-02 08:51:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 7905. [2024-12-02 08:51:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7905 states, 7904 states have (on average 1.4977226720647774) internal successors, (11838), 7904 states have internal predecessors, (11838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7905 states to 7905 states and 11838 transitions. [2024-12-02 08:51:26,204 INFO L78 Accepts]: Start accepts. Automaton has 7905 states and 11838 transitions. Word has length 3963 [2024-12-02 08:51:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:26,207 INFO L471 AbstractCegarLoop]: Abstraction has 7905 states and 11838 transitions. [2024-12-02 08:51:26,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 698.0) internal successors, (3490), 5 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7905 states and 11838 transitions. [2024-12-02 08:51:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3965 [2024-12-02 08:51:26,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:26,352 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:26,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:51:26,352 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:26,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash 723942352, now seen corresponding path program 1 times [2024-12-02 08:51:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:26,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112912229] [2024-12-02 08:51:26,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:26,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2024-12-02 08:51:41,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112912229] [2024-12-02 08:51:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112912229] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:41,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:51:41,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:51:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772651812] [2024-12-02 08:51:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:41,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:41,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:41,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:41,846 INFO L87 Difference]: Start difference. First operand 7905 states and 11838 transitions. Second operand has 5 states, 5 states have (on average 698.6) internal successors, (3493), 5 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:41,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:41,993 INFO L93 Difference]: Finished difference Result 14586 states and 21841 transitions. [2024-12-02 08:51:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:51:41,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 698.6) internal successors, (3493), 5 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3964 [2024-12-02 08:51:41,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:42,002 INFO L225 Difference]: With dead ends: 14586 [2024-12-02 08:51:42,002 INFO L226 Difference]: Without dead ends: 7909 [2024-12-02 08:51:42,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:42,007 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 30968 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41296 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:42,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41296 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:51:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7909 states. [2024-12-02 08:51:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7909 to 7907. [2024-12-02 08:51:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7907 states, 7906 states have (on average 1.497596761952947) internal successors, (11840), 7906 states have internal predecessors, (11840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 11840 transitions. [2024-12-02 08:51:42,081 INFO L78 Accepts]: Start accepts. Automaton has 7907 states and 11840 transitions. Word has length 3964 [2024-12-02 08:51:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:42,084 INFO L471 AbstractCegarLoop]: Abstraction has 7907 states and 11840 transitions. [2024-12-02 08:51:42,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 698.6) internal successors, (3493), 5 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7907 states and 11840 transitions. [2024-12-02 08:51:42,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3966 [2024-12-02 08:51:42,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:42,206 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:42,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:51:42,207 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:42,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash -956130131, now seen corresponding path program 1 times [2024-12-02 08:51:42,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:42,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85837935] [2024-12-02 08:51:42,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-12-02 08:51:56,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:56,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85837935] [2024-12-02 08:51:56,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85837935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:56,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:51:56,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:51:56,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469811295] [2024-12-02 08:51:56,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:56,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:56,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:56,055 INFO L87 Difference]: Start difference. First operand 7907 states and 11840 transitions. Second operand has 5 states, 5 states have (on average 699.2) internal successors, (3496), 5 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:56,174 INFO L93 Difference]: Finished difference Result 14594 states and 21851 transitions. [2024-12-02 08:51:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:51:56,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 699.2) internal successors, (3496), 5 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3965 [2024-12-02 08:51:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:56,182 INFO L225 Difference]: With dead ends: 14594 [2024-12-02 08:51:56,183 INFO L226 Difference]: Without dead ends: 7911 [2024-12-02 08:51:56,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:56,187 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:56,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30974 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:51:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7911 states. [2024-12-02 08:51:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7911 to 7909. [2024-12-02 08:51:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 1.4974709155285786) internal successors, (11842), 7908 states have internal predecessors, (11842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 11842 transitions. [2024-12-02 08:51:56,252 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 11842 transitions. Word has length 3965 [2024-12-02 08:51:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 7909 states and 11842 transitions. [2024-12-02 08:51:56,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 699.2) internal successors, (3496), 5 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:51:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 11842 transitions. [2024-12-02 08:51:56,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3967 [2024-12-02 08:51:56,338 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:56,339 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:56,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:51:56,339 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:56,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash 512181367, now seen corresponding path program 1 times [2024-12-02 08:51:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:56,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212177682] [2024-12-02 08:51:56,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:52:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:07,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212177682] [2024-12-02 08:53:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212177682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:07,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:07,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:53:07,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593414812] [2024-12-02 08:53:07,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:07,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:53:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:07,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:53:07,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:53:07,940 INFO L87 Difference]: Start difference. First operand 7909 states and 11842 transitions. Second operand has 6 states, 6 states have (on average 661.0) internal successors, (3966), 6 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:10,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:10,808 INFO L93 Difference]: Finished difference Result 21247 states and 31795 transitions. [2024-12-02 08:53:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:53:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 661.0) internal successors, (3966), 6 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3966 [2024-12-02 08:53:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:10,817 INFO L225 Difference]: With dead ends: 21247 [2024-12-02 08:53:10,817 INFO L226 Difference]: Without dead ends: 13332 [2024-12-02 08:53:10,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:10,821 INFO L435 NwaCegarLoop]: 10246 mSDtfsCounter, 11356 mSDsluCounter, 38158 mSDsCounter, 0 mSdLazyCounter, 2825 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11356 SdHoareTripleChecker+Valid, 48404 SdHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:10,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11356 Valid, 48404 Invalid, 2900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 2825 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 08:53:10,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2024-12-02 08:53:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 7909. [2024-12-02 08:53:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 1.4973444613050075) internal successors, (11841), 7908 states have internal predecessors, (11841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:10,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 11841 transitions. [2024-12-02 08:53:10,905 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 11841 transitions. Word has length 3966 [2024-12-02 08:53:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:10,906 INFO L471 AbstractCegarLoop]: Abstraction has 7909 states and 11841 transitions. [2024-12-02 08:53:10,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 661.0) internal successors, (3966), 6 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 11841 transitions. [2024-12-02 08:53:10,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3968 [2024-12-02 08:53:10,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:10,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:10,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:53:10,969 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:10,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1033884183, now seen corresponding path program 1 times [2024-12-02 08:53:10,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:10,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498064928] [2024-12-02 08:53:10,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:10,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 08:53:25,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:25,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498064928] [2024-12-02 08:53:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498064928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:53:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70531050] [2024-12-02 08:53:25,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:25,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:25,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:25,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:25,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:25,273 INFO L87 Difference]: Start difference. First operand 7909 states and 11841 transitions. Second operand has 4 states, 4 states have (on average 875.25) internal successors, (3501), 4 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:25,375 INFO L93 Difference]: Finished difference Result 14602 states and 21860 transitions. [2024-12-02 08:53:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:25,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 875.25) internal successors, (3501), 4 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3967 [2024-12-02 08:53:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:25,384 INFO L225 Difference]: With dead ends: 14602 [2024-12-02 08:53:25,385 INFO L226 Difference]: Without dead ends: 7913 [2024-12-02 08:53:25,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:25,389 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:25,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30974 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states. [2024-12-02 08:53:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7911. [2024-12-02 08:53:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7911 states, 7910 states have (on average 1.4972187104930468) internal successors, (11843), 7910 states have internal predecessors, (11843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7911 states to 7911 states and 11843 transitions. [2024-12-02 08:53:25,464 INFO L78 Accepts]: Start accepts. Automaton has 7911 states and 11843 transitions. Word has length 3967 [2024-12-02 08:53:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:25,466 INFO L471 AbstractCegarLoop]: Abstraction has 7911 states and 11843 transitions. [2024-12-02 08:53:25,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 875.25) internal successors, (3501), 4 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:25,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7911 states and 11843 transitions. [2024-12-02 08:53:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3969 [2024-12-02 08:53:25,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:25,598 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:25,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:53:25,598 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:25,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash 136789076, now seen corresponding path program 1 times [2024-12-02 08:53:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:25,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277275639] [2024-12-02 08:53:25,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:25,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-12-02 08:54:32,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:32,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277275639] [2024-12-02 08:54:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277275639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:32,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:32,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:54:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570161950] [2024-12-02 08:54:32,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:32,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:54:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:32,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:54:32,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:54:32,564 INFO L87 Difference]: Start difference. First operand 7911 states and 11843 transitions. Second operand has 6 states, 6 states have (on average 625.8333333333334) internal successors, (3755), 6 states have internal predecessors, (3755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:36,378 INFO L93 Difference]: Finished difference Result 20661 states and 30927 transitions. [2024-12-02 08:54:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:54:36,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 625.8333333333334) internal successors, (3755), 6 states have internal predecessors, (3755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3968 [2024-12-02 08:54:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:36,388 INFO L225 Difference]: With dead ends: 20661 [2024-12-02 08:54:36,388 INFO L226 Difference]: Without dead ends: 13572 [2024-12-02 08:54:36,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:54:36,395 INFO L435 NwaCegarLoop]: 8399 mSDtfsCounter, 18949 mSDsluCounter, 25714 mSDsCounter, 0 mSdLazyCounter, 7073 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18949 SdHoareTripleChecker+Valid, 34113 SdHoareTripleChecker+Invalid, 7189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 7073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:36,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18949 Valid, 34113 Invalid, 7189 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 7073 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 08:54:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13572 states. [2024-12-02 08:54:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13572 to 7911. [2024-12-02 08:54:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7911 states, 7910 states have (on average 1.4970922882427307) internal successors, (11842), 7910 states have internal predecessors, (11842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7911 states to 7911 states and 11842 transitions. [2024-12-02 08:54:36,483 INFO L78 Accepts]: Start accepts. Automaton has 7911 states and 11842 transitions. Word has length 3968 [2024-12-02 08:54:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:36,483 INFO L471 AbstractCegarLoop]: Abstraction has 7911 states and 11842 transitions. [2024-12-02 08:54:36,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 625.8333333333334) internal successors, (3755), 6 states have internal predecessors, (3755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7911 states and 11842 transitions. [2024-12-02 08:54:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3970 [2024-12-02 08:54:36,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:36,568 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:36,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:54:36,569 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:36,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1294450952, now seen corresponding path program 1 times [2024-12-02 08:54:36,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:36,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255336855] [2024-12-02 08:54:36,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-12-02 08:54:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:51,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255336855] [2024-12-02 08:54:51,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255336855] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:51,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:51,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:54:51,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759521625] [2024-12-02 08:54:51,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:51,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:54:51,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:51,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:54:51,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:54:51,850 INFO L87 Difference]: Start difference. First operand 7911 states and 11842 transitions. Second operand has 5 states, 5 states have (on average 701.2) internal successors, (3506), 5 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:51,951 INFO L93 Difference]: Finished difference Result 14610 states and 21869 transitions. [2024-12-02 08:54:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:54:51,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 701.2) internal successors, (3506), 5 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3969 [2024-12-02 08:54:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:51,960 INFO L225 Difference]: With dead ends: 14610 [2024-12-02 08:54:51,960 INFO L226 Difference]: Without dead ends: 7915 [2024-12-02 08:54:51,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:54:51,964 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:51,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30974 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:54:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2024-12-02 08:54:52,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 7913. [2024-12-02 08:54:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7913 states, 7912 states have (on average 1.4969666329625886) internal successors, (11844), 7912 states have internal predecessors, (11844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7913 states to 7913 states and 11844 transitions. [2024-12-02 08:54:52,029 INFO L78 Accepts]: Start accepts. Automaton has 7913 states and 11844 transitions. Word has length 3969 [2024-12-02 08:54:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:52,031 INFO L471 AbstractCegarLoop]: Abstraction has 7913 states and 11844 transitions. [2024-12-02 08:54:52,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 701.2) internal successors, (3506), 5 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:54:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7913 states and 11844 transitions. [2024-12-02 08:54:52,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3971 [2024-12-02 08:54:52,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:52,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:52,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:54:52,096 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:52,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1373886700, now seen corresponding path program 1 times [2024-12-02 08:54:52,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:52,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653604520] [2024-12-02 08:54:52,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:52,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2024-12-02 08:55:05,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:05,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653604520] [2024-12-02 08:55:05,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653604520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:05,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:05,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:55:05,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087878757] [2024-12-02 08:55:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:05,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:55:05,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:05,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:55:05,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:55:05,675 INFO L87 Difference]: Start difference. First operand 7913 states and 11844 transitions. Second operand has 5 states, 5 states have (on average 701.8) internal successors, (3509), 5 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:05,782 INFO L93 Difference]: Finished difference Result 14618 states and 21879 transitions. [2024-12-02 08:55:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:55:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 701.8) internal successors, (3509), 5 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3970 [2024-12-02 08:55:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:05,809 INFO L225 Difference]: With dead ends: 14618 [2024-12-02 08:55:05,809 INFO L226 Difference]: Without dead ends: 7917 [2024-12-02 08:55:05,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:55:05,811 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:05,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30974 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2024-12-02 08:55:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7915. [2024-12-02 08:55:05,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7914 states have (on average 1.4968410411928228) internal successors, (11846), 7914 states have internal predecessors, (11846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:05,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 11846 transitions. [2024-12-02 08:55:05,869 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 11846 transitions. Word has length 3970 [2024-12-02 08:55:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:05,871 INFO L471 AbstractCegarLoop]: Abstraction has 7915 states and 11846 transitions. [2024-12-02 08:55:05,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 701.8) internal successors, (3509), 5 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:05,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 11846 transitions. [2024-12-02 08:55:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3972 [2024-12-02 08:55:05,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:05,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:05,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:55:05,935 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:05,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2090629039, now seen corresponding path program 1 times [2024-12-02 08:55:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:05,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953868282] [2024-12-02 08:55:05,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:05,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-12-02 08:55:21,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:21,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953868282] [2024-12-02 08:55:21,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953868282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:55:21,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610013] [2024-12-02 08:55:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:21,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:55:21,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:21,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:55:21,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:55:21,298 INFO L87 Difference]: Start difference. First operand 7915 states and 11846 transitions. Second operand has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:21,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:21,400 INFO L93 Difference]: Finished difference Result 14626 states and 21889 transitions. [2024-12-02 08:55:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:55:21,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3971 [2024-12-02 08:55:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:21,409 INFO L225 Difference]: With dead ends: 14626 [2024-12-02 08:55:21,409 INFO L226 Difference]: Without dead ends: 7919 [2024-12-02 08:55:21,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:55:21,413 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:21,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30974 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2024-12-02 08:55:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 7917. [2024-12-02 08:55:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 7916 states have (on average 1.4967155128852956) internal successors, (11848), 7916 states have internal predecessors, (11848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 11848 transitions. [2024-12-02 08:55:21,479 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 11848 transitions. Word has length 3971 [2024-12-02 08:55:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:21,481 INFO L471 AbstractCegarLoop]: Abstraction has 7917 states and 11848 transitions. [2024-12-02 08:55:21,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:21,482 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 11848 transitions. [2024-12-02 08:55:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3973 [2024-12-02 08:55:21,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:21,547 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:21,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:55:21,547 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:21,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash 548413459, now seen corresponding path program 1 times [2024-12-02 08:55:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:21,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306787678] [2024-12-02 08:55:21,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:21,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-12-02 08:55:34,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:34,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306787678] [2024-12-02 08:55:34,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306787678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:34,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:34,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:55:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879224729] [2024-12-02 08:55:34,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:34,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:55:34,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:34,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:55:34,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:55:34,146 INFO L87 Difference]: Start difference. First operand 7917 states and 11848 transitions. Second operand has 4 states, 4 states have (on average 879.25) internal successors, (3517), 4 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:34,239 INFO L93 Difference]: Finished difference Result 14642 states and 21911 transitions. [2024-12-02 08:55:34,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:55:34,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 879.25) internal successors, (3517), 4 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3972 [2024-12-02 08:55:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:34,247 INFO L225 Difference]: With dead ends: 14642 [2024-12-02 08:55:34,248 INFO L226 Difference]: Without dead ends: 7929 [2024-12-02 08:55:34,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:55:34,251 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 4 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:34,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30974 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2024-12-02 08:55:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7923. [2024-12-02 08:55:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7922 states have (on average 1.4965917697551123) internal successors, (11856), 7922 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 11856 transitions. [2024-12-02 08:55:34,319 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 11856 transitions. Word has length 3972 [2024-12-02 08:55:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:34,321 INFO L471 AbstractCegarLoop]: Abstraction has 7923 states and 11856 transitions. [2024-12-02 08:55:34,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 879.25) internal successors, (3517), 4 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 11856 transitions. [2024-12-02 08:55:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3974 [2024-12-02 08:55:34,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:34,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:34,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:55:34,386 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:34,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -252221821, now seen corresponding path program 1 times [2024-12-02 08:55:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68750101] [2024-12-02 08:55:34,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 08:55:48,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68750101] [2024-12-02 08:55:48,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68750101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:48,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:48,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:55:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305456884] [2024-12-02 08:55:48,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:48,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:55:48,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:48,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:55:48,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:55:48,522 INFO L87 Difference]: Start difference. First operand 7923 states and 11856 transitions. Second operand has 4 states, 4 states have (on average 880.5) internal successors, (3522), 4 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:48,621 INFO L93 Difference]: Finished difference Result 14662 states and 21939 transitions. [2024-12-02 08:55:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:55:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 880.5) internal successors, (3522), 4 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3973 [2024-12-02 08:55:48,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:48,630 INFO L225 Difference]: With dead ends: 14662 [2024-12-02 08:55:48,630 INFO L226 Difference]: Without dead ends: 7935 [2024-12-02 08:55:48,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:55:48,635 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 4 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:48,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30974 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:48,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7935 states. [2024-12-02 08:55:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7935 to 7929. [2024-12-02 08:55:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7929 states, 7928 states have (on average 1.496468213925328) internal successors, (11864), 7928 states have internal predecessors, (11864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7929 states to 7929 states and 11864 transitions. [2024-12-02 08:55:48,702 INFO L78 Accepts]: Start accepts. Automaton has 7929 states and 11864 transitions. Word has length 3973 [2024-12-02 08:55:48,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:48,704 INFO L471 AbstractCegarLoop]: Abstraction has 7929 states and 11864 transitions. [2024-12-02 08:55:48,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 880.5) internal successors, (3522), 4 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:55:48,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7929 states and 11864 transitions. [2024-12-02 08:55:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3975 [2024-12-02 08:55:48,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:48,771 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:48,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:55:48,771 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:48,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1213460321, now seen corresponding path program 1 times [2024-12-02 08:55:48,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:48,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621585673] [2024-12-02 08:55:48,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2024-12-02 08:56:01,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:01,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621585673] [2024-12-02 08:56:01,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621585673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:56:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:56:01,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:56:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160931708] [2024-12-02 08:56:01,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:56:01,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:56:01,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:01,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:56:01,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:01,143 INFO L87 Difference]: Start difference. First operand 7929 states and 11864 transitions. Second operand has 4 states, 4 states have (on average 881.25) internal successors, (3525), 4 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:56:01,252 INFO L93 Difference]: Finished difference Result 14674 states and 21955 transitions. [2024-12-02 08:56:01,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:56:01,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 881.25) internal successors, (3525), 4 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3974 [2024-12-02 08:56:01,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:56:01,260 INFO L225 Difference]: With dead ends: 14674 [2024-12-02 08:56:01,260 INFO L226 Difference]: Without dead ends: 7933 [2024-12-02 08:56:01,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:01,264 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20640 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30968 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:56:01,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30968 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:56:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2024-12-02 08:56:01,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7931. [2024-12-02 08:56:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7931 states, 7930 states have (on average 1.4963430012610341) internal successors, (11866), 7930 states have internal predecessors, (11866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7931 states to 7931 states and 11866 transitions. [2024-12-02 08:56:01,332 INFO L78 Accepts]: Start accepts. Automaton has 7931 states and 11866 transitions. Word has length 3974 [2024-12-02 08:56:01,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:56:01,334 INFO L471 AbstractCegarLoop]: Abstraction has 7931 states and 11866 transitions. [2024-12-02 08:56:01,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 881.25) internal successors, (3525), 4 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7931 states and 11866 transitions. [2024-12-02 08:56:01,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3976 [2024-12-02 08:56:01,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:56:01,400 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:01,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:56:01,400 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:56:01,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:56:01,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1639335140, now seen corresponding path program 1 times [2024-12-02 08:56:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:56:01,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217687127] [2024-12-02 08:56:01,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:01,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:56:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 08:56:17,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217687127] [2024-12-02 08:56:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217687127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:56:17,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:56:17,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:56:17,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436200591] [2024-12-02 08:56:17,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:56:17,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:56:17,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:17,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:56:17,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:17,211 INFO L87 Difference]: Start difference. First operand 7931 states and 11866 transitions. Second operand has 4 states, 4 states have (on average 882.0) internal successors, (3528), 4 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:17,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:56:17,310 INFO L93 Difference]: Finished difference Result 14688 states and 21973 transitions. [2024-12-02 08:56:17,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:56:17,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 882.0) internal successors, (3528), 4 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3975 [2024-12-02 08:56:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:56:17,318 INFO L225 Difference]: With dead ends: 14688 [2024-12-02 08:56:17,319 INFO L226 Difference]: Without dead ends: 7945 [2024-12-02 08:56:17,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:17,323 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 3 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:56:17,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30974 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:56:17,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7945 states. [2024-12-02 08:56:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7945 to 7935. [2024-12-02 08:56:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7935 states, 7934 states have (on average 1.4963448449710108) internal successors, (11872), 7934 states have internal predecessors, (11872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:17,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7935 states to 7935 states and 11872 transitions. [2024-12-02 08:56:17,394 INFO L78 Accepts]: Start accepts. Automaton has 7935 states and 11872 transitions. Word has length 3975 [2024-12-02 08:56:17,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:56:17,396 INFO L471 AbstractCegarLoop]: Abstraction has 7935 states and 11872 transitions. [2024-12-02 08:56:17,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 882.0) internal successors, (3528), 4 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:17,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7935 states and 11872 transitions. [2024-12-02 08:56:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3977 [2024-12-02 08:56:17,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:56:17,464 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:17,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:56:17,464 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:56:17,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:56:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2072236872, now seen corresponding path program 1 times [2024-12-02 08:56:17,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:56:17,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182650335] [2024-12-02 08:56:17,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:17,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:56:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-12-02 08:56:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182650335] [2024-12-02 08:56:30,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182650335] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:56:30,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:56:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:56:30,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141405421] [2024-12-02 08:56:30,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:56:30,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:56:30,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:30,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:56:30,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:30,146 INFO L87 Difference]: Start difference. First operand 7935 states and 11872 transitions. Second operand has 4 states, 4 states have (on average 882.75) internal successors, (3531), 4 states have internal predecessors, (3531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:56:30,238 INFO L93 Difference]: Finished difference Result 14694 states and 21983 transitions. [2024-12-02 08:56:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:56:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 882.75) internal successors, (3531), 4 states have internal predecessors, (3531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3976 [2024-12-02 08:56:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:56:30,246 INFO L225 Difference]: With dead ends: 14694 [2024-12-02 08:56:30,246 INFO L226 Difference]: Without dead ends: 7939 [2024-12-02 08:56:30,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:30,250 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 0 mSDsluCounter, 20640 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30968 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:56:30,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30968 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:56:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7939 states. [2024-12-02 08:56:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7939 to 7937. [2024-12-02 08:56:30,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7937 states, 7936 states have (on average 1.4962197580645162) internal successors, (11874), 7936 states have internal predecessors, (11874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7937 states to 7937 states and 11874 transitions. [2024-12-02 08:56:30,310 INFO L78 Accepts]: Start accepts. Automaton has 7937 states and 11874 transitions. Word has length 3976 [2024-12-02 08:56:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:56:30,312 INFO L471 AbstractCegarLoop]: Abstraction has 7937 states and 11874 transitions. [2024-12-02 08:56:30,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 882.75) internal successors, (3531), 4 states have internal predecessors, (3531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7937 states and 11874 transitions. [2024-12-02 08:56:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3978 [2024-12-02 08:56:30,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:56:30,376 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:30,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:56:30,376 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:56:30,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:56:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash 648819381, now seen corresponding path program 1 times [2024-12-02 08:56:30,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:56:30,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723349737] [2024-12-02 08:56:30,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:30,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:56:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-12-02 08:56:45,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:45,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723349737] [2024-12-02 08:56:45,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723349737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:56:45,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:56:45,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:56:45,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882414880] [2024-12-02 08:56:45,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:56:45,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:56:45,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:45,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:56:45,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:45,311 INFO L87 Difference]: Start difference. First operand 7937 states and 11874 transitions. Second operand has 4 states, 4 states have (on average 883.5) internal successors, (3534), 4 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:56:45,501 INFO L93 Difference]: Finished difference Result 14708 states and 22001 transitions. [2024-12-02 08:56:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:56:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 883.5) internal successors, (3534), 4 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3977 [2024-12-02 08:56:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:56:45,509 INFO L225 Difference]: With dead ends: 14708 [2024-12-02 08:56:45,509 INFO L226 Difference]: Without dead ends: 7951 [2024-12-02 08:56:45,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:56:45,512 INFO L435 NwaCegarLoop]: 10328 mSDtfsCounter, 3 mSDsluCounter, 20646 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30974 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:56:45,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30974 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:56:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2024-12-02 08:56:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7941. [2024-12-02 08:56:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 7940 states have (on average 1.4962216624685138) internal successors, (11880), 7940 states have internal predecessors, (11880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11880 transitions. [2024-12-02 08:56:45,582 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11880 transitions. Word has length 3977 [2024-12-02 08:56:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:56:45,585 INFO L471 AbstractCegarLoop]: Abstraction has 7941 states and 11880 transitions. [2024-12-02 08:56:45,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 883.5) internal successors, (3534), 4 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:56:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11880 transitions. [2024-12-02 08:56:45,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3979 [2024-12-02 08:56:45,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:56:45,659 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:45,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:56:45,659 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:56:45,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:56:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1427215313, now seen corresponding path program 1 times [2024-12-02 08:56:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:56:45,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540536260] [2024-12-02 08:56:45,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms