./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e1489629cdc9e883b5f9b8dace01f7ff19076a70dfbf3cfc1395e8493a3e654 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:39:39,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:39:39,322 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:39:39,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:39:39,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:39:39,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:39:39,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:39:39,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:39:39,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:39:39,348 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:39:39,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:39:39,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:39:39,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:39:39,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:39:39,348 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:39:39,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:39:39,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:39:39,350 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:39:39,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:39:39,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:39:39,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:39:39,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:39:39,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:39:39,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:39:39,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:39:39,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:39:39,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:39:39,352 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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e1489629cdc9e883b5f9b8dace01f7ff19076a70dfbf3cfc1395e8493a3e654 [2024-12-02 11:39:39,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:39:39,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:39:39,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:39:39,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:39:39,604 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:39:39,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-12-02 11:39:42,260 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/data/746b63ab3/c1de94644faa4b039c34f6fe697eba9c/FLAGab8cc2961 [2024-12-02 11:39:42,678 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:39:42,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-12-02 11:39:42,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/data/746b63ab3/c1de94644faa4b039c34f6fe697eba9c/FLAGab8cc2961 [2024-12-02 11:39:42,722 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/data/746b63ab3/c1de94644faa4b039c34f6fe697eba9c [2024-12-02 11:39:42,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:39:42,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:39:42,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:39:42,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:39:42,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:39:42,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:42" (1/1) ... [2024-12-02 11:39:42,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e74d047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:42, skipping insertion in model container [2024-12-02 11:39:42,733 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:42" (1/1) ... [2024-12-02 11:39:42,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:39:43,136 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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c[26897,26910] [2024-12-02 11:39:43,177 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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c[34187,34200] [2024-12-02 11:39:43,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:39:43,769 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:39:43,806 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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c[26897,26910] [2024-12-02 11:39:43,814 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_f9e4ee58-8be1-4437-86dc-c88aa12db93b/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c[34187,34200] [2024-12-02 11:39:44,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:39:44,257 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:39:44,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44 WrapperNode [2024-12-02 11:39:44,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:39:44,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:39:44,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:39:44,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:39:44,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,630 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5292 [2024-12-02 11:39:44,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:39:44,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:39:44,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:39:44,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:39:44,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,831 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:39:44,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,946 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:44,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:45,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:45,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:45,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:39:45,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:39:45,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:39:45,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:39:45,094 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (1/1) ... [2024-12-02 11:39:45,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:39:45,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:45,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:39:45,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:39:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:39:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:39:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:39:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:39:45,272 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:39:45,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:39:49,547 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 11:39:49,547 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:39:49,577 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:39:49,577 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:39:49,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:49 BoogieIcfgContainer [2024-12-02 11:39:49,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:39:49,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:39:49,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:39:49,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:39:49,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:39:42" (1/3) ... [2024-12-02 11:39:49,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d000fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:39:49, skipping insertion in model container [2024-12-02 11:39:49,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:44" (2/3) ... [2024-12-02 11:39:49,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d000fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:39:49, skipping insertion in model container [2024-12-02 11:39:49,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:49" (3/3) ... [2024-12-02 11:39:49,587 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-12-02 11:39:49,598 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:39:49,600 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label02.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 11:39:49,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:39:49,677 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;@428edff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:39:49,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:39:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 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 11:39:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 11:39:49,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:49,689 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] [2024-12-02 11:39:49,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:49,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash 607462501, now seen corresponding path program 1 times [2024-12-02 11:39:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787159333] [2024-12-02 11:39:49,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:49,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:49,936 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 11:39:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787159333] [2024-12-02 11:39:49,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787159333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:49,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:39:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453877831] [2024-12-02 11:39:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:49,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:39:49,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:49,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:39:49,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:39:49,958 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 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 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 11:39:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:50,027 INFO L93 Difference]: Finished difference Result 1829 states and 3466 transitions. [2024-12-02 11:39:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:39:50,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2024-12-02 11:39:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:50,042 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 11:39:50,042 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 11:39:50,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:39:50,050 INFO L435 NwaCegarLoop]: 1732 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:50,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 11:39:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 11:39:50,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8920454545454546) internal successors, (1665), 881 states have internal predecessors, (1665), 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 11:39:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1665 transitions. [2024-12-02 11:39:50,116 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1665 transitions. Word has length 31 [2024-12-02 11:39:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:50,116 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1665 transitions. [2024-12-02 11:39:50,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 11:39:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1665 transitions. [2024-12-02 11:39:50,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 11:39:50,118 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:50,118 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] [2024-12-02 11:39:50,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:39:50,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:50,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:50,119 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-12-02 11:39:50,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:50,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446061795] [2024-12-02 11:39:50,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:50,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:50,359 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 11:39:50,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:50,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446061795] [2024-12-02 11:39:50,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446061795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:50,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:50,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:39:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71696124] [2024-12-02 11:39:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:50,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:39:50,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:50,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:39:50,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:39:50,362 INFO L87 Difference]: Start difference. First operand 882 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 11:39:50,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:50,492 INFO L93 Difference]: Finished difference Result 947 states and 1767 transitions. [2024-12-02 11:39:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:39:50,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2024-12-02 11:39:50,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:50,495 INFO L225 Difference]: With dead ends: 947 [2024-12-02 11:39:50,495 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 11:39:50,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:39:50,496 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:50,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:39:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 11:39:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 11:39:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8227272727272728) internal successors, (1604), 881 states have internal predecessors, (1604), 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 11:39:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1604 transitions. [2024-12-02 11:39:50,515 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1604 transitions. Word has length 31 [2024-12-02 11:39:50,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:50,515 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1604 transitions. [2024-12-02 11:39:50,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 11:39:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1604 transitions. [2024-12-02 11:39:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 11:39:50,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:50,516 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] [2024-12-02 11:39:50,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:39:50,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:50,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:50,517 INFO L85 PathProgramCache]: Analyzing trace with hash -516855475, now seen corresponding path program 1 times [2024-12-02 11:39:50,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:50,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930358801] [2024-12-02 11:39:50,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:50,729 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 11:39:50,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930358801] [2024-12-02 11:39:50,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930358801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:50,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:50,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993681108] [2024-12-02 11:39:50,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:50,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:39:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:50,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:39:50,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:39:50,731 INFO L87 Difference]: Start difference. First operand 882 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 11:39:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:56,674 INFO L93 Difference]: Finished difference Result 3137 states and 5913 transitions. [2024-12-02 11:39:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:39:56,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-12-02 11:39:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:56,684 INFO L225 Difference]: With dead ends: 3137 [2024-12-02 11:39:56,685 INFO L226 Difference]: Without dead ends: 2384 [2024-12-02 11:39:56,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 11:39:56,687 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 2505 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:56,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 876 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-12-02 11:39:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-12-02 11:39:56,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-12-02 11:39:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5659109991603695) internal successors, (3730), 2383 states have internal predecessors, (3730), 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 11:39:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3730 transitions. [2024-12-02 11:39:56,744 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3730 transitions. Word has length 63 [2024-12-02 11:39:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:56,745 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3730 transitions. [2024-12-02 11:39:56,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 11:39:56,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3730 transitions. [2024-12-02 11:39:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:39:56,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:56,747 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] [2024-12-02 11:39:56,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:39:56,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:56,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-12-02 11:39:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:56,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861382050] [2024-12-02 11:39:56,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:57,089 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 11:39:57,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861382050] [2024-12-02 11:39:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861382050] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:57,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:39:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214842482] [2024-12-02 11:39:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:57,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:39:57,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:57,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:39:57,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:39:57,091 INFO L87 Difference]: Start difference. First operand 2384 states and 3730 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 11:39:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:57,577 INFO L93 Difference]: Finished difference Result 3360 states and 5298 transitions. [2024-12-02 11:39:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:39:57,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 91 [2024-12-02 11:39:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:57,586 INFO L225 Difference]: With dead ends: 3360 [2024-12-02 11:39:57,586 INFO L226 Difference]: Without dead ends: 3299 [2024-12-02 11:39:57,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:39:57,589 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:57,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:39:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-12-02 11:39:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2443. [2024-12-02 11:39:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2441 states have (on average 1.5669807455960671) internal successors, (3825), 2442 states have internal predecessors, (3825), 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 11:39:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3825 transitions. [2024-12-02 11:39:57,627 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3825 transitions. Word has length 91 [2024-12-02 11:39:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:57,628 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3825 transitions. [2024-12-02 11:39:57,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 11:39:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3825 transitions. [2024-12-02 11:39:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:39:57,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:57,629 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] [2024-12-02 11:39:57,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:39:57,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-12-02 11:39:57,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:57,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590877960] [2024-12-02 11:39:57,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:57,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:57,730 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 11:39:57,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:57,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590877960] [2024-12-02 11:39:57,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590877960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:57,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:57,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:57,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892731474] [2024-12-02 11:39:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:57,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:57,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:57,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:57,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:57,733 INFO L87 Difference]: Start difference. First operand 2443 states and 3825 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 11:39:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:57,764 INFO L93 Difference]: Finished difference Result 2672 states and 4192 transitions. [2024-12-02 11:39:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:57,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-12-02 11:39:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:57,770 INFO L225 Difference]: With dead ends: 2672 [2024-12-02 11:39:57,770 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 11:39:57,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:57,771 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:57,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 11:39:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 11:39:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5678963893249607) internal successors, (3995), 2549 states have internal predecessors, (3995), 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 11:39:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3995 transitions. [2024-12-02 11:39:57,809 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3995 transitions. Word has length 93 [2024-12-02 11:39:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:57,810 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3995 transitions. [2024-12-02 11:39:57,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 11:39:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3995 transitions. [2024-12-02 11:39:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:39:57,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:57,811 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] [2024-12-02 11:39:57,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:39:57,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:57,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-12-02 11:39:57,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:57,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371271198] [2024-12-02 11:39:57,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:57,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:58,292 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 11:39:58,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371271198] [2024-12-02 11:39:58,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371271198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:58,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:58,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:39:58,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355450926] [2024-12-02 11:39:58,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:58,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:39:58,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:58,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:39:58,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:39:58,293 INFO L87 Difference]: Start difference. First operand 2550 states and 3995 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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 11:39:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:58,747 INFO L93 Difference]: Finished difference Result 2779 states and 4359 transitions. [2024-12-02 11:39:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:39:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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 93 [2024-12-02 11:39:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:58,756 INFO L225 Difference]: With dead ends: 2779 [2024-12-02 11:39:58,756 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 11:39:58,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:39:58,758 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:58,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:39:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 11:39:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 11:39:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.567111459968603) internal successors, (3993), 2549 states have internal predecessors, (3993), 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 11:39:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3993 transitions. [2024-12-02 11:39:58,808 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3993 transitions. Word has length 93 [2024-12-02 11:39:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:58,809 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3993 transitions. [2024-12-02 11:39:58,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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 11:39:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3993 transitions. [2024-12-02 11:39:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 11:39:58,810 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:58,810 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] [2024-12-02 11:39:58,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:39:58,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:58,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-12-02 11:39:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:58,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868923620] [2024-12-02 11:39:58,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:59,117 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 11:39:59,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:59,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868923620] [2024-12-02 11:39:59,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868923620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:59,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:59,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:39:59,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998705072] [2024-12-02 11:39:59,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:59,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:39:59,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:59,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:39:59,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:39:59,119 INFO L87 Difference]: Start difference. First operand 2550 states and 3993 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 11:39:59,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:59,159 INFO L93 Difference]: Finished difference Result 2558 states and 4002 transitions. [2024-12-02 11:39:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:39:59,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2024-12-02 11:39:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:59,166 INFO L225 Difference]: With dead ends: 2558 [2024-12-02 11:39:59,166 INFO L226 Difference]: Without dead ends: 2556 [2024-12-02 11:39:59,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:39:59,167 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:59,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-12-02 11:39:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-12-02 11:39:59,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.5653876272513705) internal successors, (3998), 2555 states have internal predecessors, (3998), 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 11:39:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3998 transitions. [2024-12-02 11:39:59,216 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3998 transitions. Word has length 94 [2024-12-02 11:39:59,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:59,216 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3998 transitions. [2024-12-02 11:39:59,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 11:39:59,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3998 transitions. [2024-12-02 11:39:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:59,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:59,218 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] [2024-12-02 11:39:59,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:39:59,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-12-02 11:39:59,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:59,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510979348] [2024-12-02 11:39:59,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:59,324 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 11:39:59,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:59,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510979348] [2024-12-02 11:39:59,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510979348] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:59,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:59,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907646983] [2024-12-02 11:39:59,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:59,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:59,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:59,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,326 INFO L87 Difference]: Start difference. First operand 2556 states and 3998 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:59,391 INFO L93 Difference]: Finished difference Result 2803 states and 4384 transitions. [2024-12-02 11:39:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:39:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:59,398 INFO L225 Difference]: With dead ends: 2803 [2024-12-02 11:39:59,399 INFO L226 Difference]: Without dead ends: 2677 [2024-12-02 11:39:59,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,400 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:59,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-12-02 11:39:59,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-12-02 11:39:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5645342312008979) internal successors, (4182), 2674 states have internal predecessors, (4182), 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 11:39:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4182 transitions. [2024-12-02 11:39:59,452 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4182 transitions. Word has length 95 [2024-12-02 11:39:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:59,453 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4182 transitions. [2024-12-02 11:39:59,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4182 transitions. [2024-12-02 11:39:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:59,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:59,454 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] [2024-12-02 11:39:59,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:39:59,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:59,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-12-02 11:39:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:59,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097707599] [2024-12-02 11:39:59,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:59,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:59,553 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 11:39:59,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:59,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097707599] [2024-12-02 11:39:59,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097707599] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:59,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:59,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:59,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091321708] [2024-12-02 11:39:59,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:59,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:59,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:59,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,555 INFO L87 Difference]: Start difference. First operand 2675 states and 4182 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:59,611 INFO L93 Difference]: Finished difference Result 3349 states and 5234 transitions. [2024-12-02 11:39:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:39:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:59,620 INFO L225 Difference]: With dead ends: 3349 [2024-12-02 11:39:59,620 INFO L226 Difference]: Without dead ends: 3000 [2024-12-02 11:39:59,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,622 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:59,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-12-02 11:39:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-12-02 11:39:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.5620827770360481) internal successors, (4680), 2997 states have internal predecessors, (4680), 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 11:39:59,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4680 transitions. [2024-12-02 11:39:59,685 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4680 transitions. Word has length 95 [2024-12-02 11:39:59,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:59,685 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4680 transitions. [2024-12-02 11:39:59,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4680 transitions. [2024-12-02 11:39:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:59,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:59,686 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] [2024-12-02 11:39:59,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:39:59,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:59,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-12-02 11:39:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497550846] [2024-12-02 11:39:59,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:59,776 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 11:39:59,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:59,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497550846] [2024-12-02 11:39:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497550846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:59,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:59,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:59,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584138482] [2024-12-02 11:39:59,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:59,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:59,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:59,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:59,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,778 INFO L87 Difference]: Start difference. First operand 2998 states and 4680 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:59,826 INFO L93 Difference]: Finished difference Result 4294 states and 6686 transitions. [2024-12-02 11:39:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:59,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:39:59,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:59,836 INFO L225 Difference]: With dead ends: 4294 [2024-12-02 11:39:59,836 INFO L226 Difference]: Without dead ends: 3622 [2024-12-02 11:39:59,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:59,839 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:59,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-12-02 11:39:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-12-02 11:39:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.5555555555555556) internal successors, (5628), 3619 states have internal predecessors, (5628), 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 11:39:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5628 transitions. [2024-12-02 11:39:59,922 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5628 transitions. Word has length 95 [2024-12-02 11:39:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:59,922 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5628 transitions. [2024-12-02 11:39:59,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:39:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5628 transitions. [2024-12-02 11:39:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:59,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:59,923 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] [2024-12-02 11:39:59,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:39:59,924 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:59,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-12-02 11:39:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:59,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135956535] [2024-12-02 11:39:59,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:59,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:00,013 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 11:40:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:00,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135956535] [2024-12-02 11:40:00,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135956535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:00,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:00,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:00,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476665262] [2024-12-02 11:40:00,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:00,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:00,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:00,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:00,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:00,014 INFO L87 Difference]: Start difference. First operand 3620 states and 5628 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:00,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:00,086 INFO L93 Difference]: Finished difference Result 6112 states and 9446 transitions. [2024-12-02 11:40:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:40:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:00,098 INFO L225 Difference]: With dead ends: 6112 [2024-12-02 11:40:00,098 INFO L226 Difference]: Without dead ends: 4818 [2024-12-02 11:40:00,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:00,101 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:00,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-12-02 11:40:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-12-02 11:40:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.5429995845450768) internal successors, (7428), 4815 states have internal predecessors, (7428), 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 11:40:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7428 transitions. [2024-12-02 11:40:00,252 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7428 transitions. Word has length 95 [2024-12-02 11:40:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:00,253 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7428 transitions. [2024-12-02 11:40:00,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7428 transitions. [2024-12-02 11:40:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:40:00,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:00,255 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] [2024-12-02 11:40:00,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:40:00,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:00,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-12-02 11:40:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:00,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968924186] [2024-12-02 11:40:00,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:00,374 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 11:40:00,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:00,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968924186] [2024-12-02 11:40:00,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968924186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:00,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:00,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:00,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726363271] [2024-12-02 11:40:00,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:00,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:00,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:00,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:00,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:00,376 INFO L87 Difference]: Start difference. First operand 4816 states and 7428 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:00,533 INFO L93 Difference]: Finished difference Result 9604 states and 14678 transitions. [2024-12-02 11:40:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:00,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:40:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:00,550 INFO L225 Difference]: With dead ends: 9604 [2024-12-02 11:40:00,550 INFO L226 Difference]: Without dead ends: 7114 [2024-12-02 11:40:00,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:00,556 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:00,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-12-02 11:40:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-12-02 11:40:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.5240506329113923) internal successors, (10836), 7111 states have internal predecessors, (10836), 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 11:40:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10836 transitions. [2024-12-02 11:40:00,750 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10836 transitions. Word has length 95 [2024-12-02 11:40:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:00,750 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10836 transitions. [2024-12-02 11:40:00,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10836 transitions. [2024-12-02 11:40:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:40:00,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:00,752 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] [2024-12-02 11:40:00,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:40:00,752 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:00,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-12-02 11:40:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862545482] [2024-12-02 11:40:00,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:00,834 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 11:40:00,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:00,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862545482] [2024-12-02 11:40:00,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862545482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:00,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:00,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:00,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129983031] [2024-12-02 11:40:00,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:00,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:00,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:00,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:00,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:00,835 INFO L87 Difference]: Start difference. First operand 7112 states and 10836 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:01,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:01,024 INFO L93 Difference]: Finished difference Result 16300 states and 24566 transitions. [2024-12-02 11:40:01,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:01,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:40:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:01,047 INFO L225 Difference]: With dead ends: 16300 [2024-12-02 11:40:01,047 INFO L226 Difference]: Without dead ends: 11514 [2024-12-02 11:40:01,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:01,055 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:01,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:01,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-12-02 11:40:01,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-12-02 11:40:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.5002606429192007) internal successors, (17268), 11511 states have internal predecessors, (17268), 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 11:40:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 17268 transitions. [2024-12-02 11:40:01,383 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 17268 transitions. Word has length 95 [2024-12-02 11:40:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:01,384 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 17268 transitions. [2024-12-02 11:40:01,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 17268 transitions. [2024-12-02 11:40:01,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:40:01,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:01,385 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] [2024-12-02 11:40:01,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:40:01,385 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:01,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-12-02 11:40:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789416243] [2024-12-02 11:40:01,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:01,464 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 11:40:01,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:01,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789416243] [2024-12-02 11:40:01,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789416243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:01,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:01,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:01,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450141073] [2024-12-02 11:40:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:01,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:01,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:01,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:01,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:01,465 INFO L87 Difference]: Start difference. First operand 11512 states and 17268 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:01,809 INFO L93 Difference]: Finished difference Result 29116 states and 43190 transitions. [2024-12-02 11:40:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:40:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:01,851 INFO L225 Difference]: With dead ends: 29116 [2024-12-02 11:40:01,851 INFO L226 Difference]: Without dead ends: 19930 [2024-12-02 11:40:01,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:01,905 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:01,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-12-02 11:40:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-12-02 11:40:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.4736525143029209) internal successors, (29364), 19927 states have internal predecessors, (29364), 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 11:40:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29364 transitions. [2024-12-02 11:40:02,326 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29364 transitions. Word has length 95 [2024-12-02 11:40:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:02,326 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29364 transitions. [2024-12-02 11:40:02,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29364 transitions. [2024-12-02 11:40:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:40:02,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:02,327 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] [2024-12-02 11:40:02,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:40:02,327 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:02,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-12-02 11:40:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:02,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974524918] [2024-12-02 11:40:02,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:02,402 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 11:40:02,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974524918] [2024-12-02 11:40:02,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974524918] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:02,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:02,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703197839] [2024-12-02 11:40:02,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:02,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:02,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:02,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:02,404 INFO L87 Difference]: Start difference. First operand 19928 states and 29364 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:02,993 INFO L93 Difference]: Finished difference Result 53596 states and 78134 transitions. [2024-12-02 11:40:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:02,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 11:40:02,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:03,044 INFO L225 Difference]: With dead ends: 53596 [2024-12-02 11:40:03,044 INFO L226 Difference]: Without dead ends: 35994 [2024-12-02 11:40:03,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:03,105 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:03,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-12-02 11:40:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-12-02 11:40:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4454015004167824) internal successors, (52020), 35991 states have internal predecessors, (52020), 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 11:40:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 52020 transitions. [2024-12-02 11:40:04,016 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 52020 transitions. Word has length 95 [2024-12-02 11:40:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:04,016 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 52020 transitions. [2024-12-02 11:40:04,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 11:40:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 52020 transitions. [2024-12-02 11:40:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:40:04,023 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:04,023 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:04,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:40:04,024 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:04,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-12-02 11:40:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:04,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655025648] [2024-12-02 11:40:04,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:40:04,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655025648] [2024-12-02 11:40:04,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655025648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:04,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:04,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:04,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352175808] [2024-12-02 11:40:04,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:04,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:04,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:04,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:04,374 INFO L87 Difference]: Start difference. First operand 35992 states and 52020 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 11:40:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:08,331 INFO L93 Difference]: Finished difference Result 301994 states and 434109 transitions. [2024-12-02 11:40:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:40:08,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 121 [2024-12-02 11:40:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:08,682 INFO L225 Difference]: With dead ends: 301994 [2024-12-02 11:40:08,682 INFO L226 Difference]: Without dead ends: 278440 [2024-12-02 11:40:08,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:40:08,730 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:08,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-12-02 11:40:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-12-02 11:40:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.4359592960316725) internal successors, (92852), 64663 states have internal predecessors, (92852), 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 11:40:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92852 transitions. [2024-12-02 11:40:11,229 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92852 transitions. Word has length 121 [2024-12-02 11:40:11,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:11,229 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92852 transitions. [2024-12-02 11:40:11,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 11:40:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92852 transitions. [2024-12-02 11:40:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:40:11,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:11,235 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:40:11,235 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-12-02 11:40:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336135921] [2024-12-02 11:40:11,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:40:11,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336135921] [2024-12-02 11:40:11,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336135921] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:11,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:11,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:11,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770905053] [2024-12-02 11:40:11,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:11,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:11,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:11,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:11,435 INFO L87 Difference]: Start difference. First operand 64664 states and 92852 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 11:40:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:17,326 INFO L93 Difference]: Finished difference Result 335658 states and 482237 transitions. [2024-12-02 11:40:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:40:17,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 121 [2024-12-02 11:40:17,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:17,648 INFO L225 Difference]: With dead ends: 335658 [2024-12-02 11:40:17,648 INFO L226 Difference]: Without dead ends: 301992 [2024-12-02 11:40:17,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:40:17,694 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11804 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:17,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5106 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-12-02 11:40:22,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-12-02 11:40:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4304190659570217) internal successors, (157492), 110103 states have internal predecessors, (157492), 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 11:40:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157492 transitions. [2024-12-02 11:40:22,260 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157492 transitions. Word has length 121 [2024-12-02 11:40:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:22,260 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157492 transitions. [2024-12-02 11:40:22,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 11:40:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157492 transitions. [2024-12-02 11:40:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:40:22,266 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:22,266 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:22,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:40:22,266 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:22,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-12-02 11:40:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289535034] [2024-12-02 11:40:22,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:22,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:40:22,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:22,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289535034] [2024-12-02 11:40:22,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289535034] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:22,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:22,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:22,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938234616] [2024-12-02 11:40:22,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:22,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:22,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:22,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:22,465 INFO L87 Difference]: Start difference. First operand 110104 states and 157492 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 11:40:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:28,694 INFO L93 Difference]: Finished difference Result 369322 states and 530237 transitions. [2024-12-02 11:40:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:40:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 121 [2024-12-02 11:40:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:29,053 INFO L225 Difference]: With dead ends: 369322 [2024-12-02 11:40:29,053 INFO L226 Difference]: Without dead ends: 335656 [2024-12-02 11:40:29,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:40:29,113 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11848 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11848 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:29,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11848 Valid, 5122 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335656 states. [2024-12-02 11:40:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335656 to 143768. [2024-12-02 11:40:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143768 states, 143766 states have (on average 1.4293504722952575) internal successors, (205492), 143767 states have internal predecessors, (205492), 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 11:40:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143768 states to 143768 states and 205492 transitions. [2024-12-02 11:40:33,963 INFO L78 Accepts]: Start accepts. Automaton has 143768 states and 205492 transitions. Word has length 121 [2024-12-02 11:40:33,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:33,963 INFO L471 AbstractCegarLoop]: Abstraction has 143768 states and 205492 transitions. [2024-12-02 11:40:33,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 11:40:33,963 INFO L276 IsEmpty]: Start isEmpty. Operand 143768 states and 205492 transitions. [2024-12-02 11:40:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:40:33,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:33,971 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:33,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:40:33,972 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:33,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash -878341562, now seen corresponding path program 1 times [2024-12-02 11:40:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:33,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023302192] [2024-12-02 11:40:33,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 11:40:34,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:34,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023302192] [2024-12-02 11:40:34,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023302192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:34,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:34,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:34,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042184965] [2024-12-02 11:40:34,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:34,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:34,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:34,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:34,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:34,310 INFO L87 Difference]: Start difference. First operand 143768 states and 205492 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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 11:40:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:43,090 INFO L93 Difference]: Finished difference Result 402986 states and 578237 transitions. [2024-12-02 11:40:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:40:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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 121 [2024-12-02 11:40:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:43,491 INFO L225 Difference]: With dead ends: 402986 [2024-12-02 11:40:43,491 INFO L226 Difference]: Without dead ends: 369320 [2024-12-02 11:40:43,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:40:43,553 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12002 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12002 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:43,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12002 Valid, 4993 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369320 states. [2024-12-02 11:40:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369320 to 177432. [2024-12-02 11:40:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177432 states, 177430 states have (on average 1.428687369666911) internal successors, (253492), 177431 states have internal predecessors, (253492), 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 11:40:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177432 states to 177432 states and 253492 transitions. [2024-12-02 11:40:50,202 INFO L78 Accepts]: Start accepts. Automaton has 177432 states and 253492 transitions. Word has length 121 [2024-12-02 11:40:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:50,203 INFO L471 AbstractCegarLoop]: Abstraction has 177432 states and 253492 transitions. [2024-12-02 11:40:50,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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 11:40:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 177432 states and 253492 transitions. [2024-12-02 11:40:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:40:50,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:50,217 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:50,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:40:50,218 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:50,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1855548346, now seen corresponding path program 1 times [2024-12-02 11:40:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820432112] [2024-12-02 11:40:50,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 11:40:50,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:50,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820432112] [2024-12-02 11:40:50,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820432112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:50,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:50,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:40:50,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167751561] [2024-12-02 11:40:50,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:50,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:40:50,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:50,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:40:50,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:40:50,551 INFO L87 Difference]: Start difference. First operand 177432 states and 253492 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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 11:41:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:00,629 INFO L93 Difference]: Finished difference Result 436650 states and 626237 transitions. [2024-12-02 11:41:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:41:00,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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 121 [2024-12-02 11:41:00,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:01,092 INFO L225 Difference]: With dead ends: 436650 [2024-12-02 11:41:01,092 INFO L226 Difference]: Without dead ends: 402984 [2024-12-02 11:41:01,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:41:01,152 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 12107 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12107 SdHoareTripleChecker+Valid, 5033 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:01,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12107 Valid, 5033 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:01,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402984 states. [2024-12-02 11:41:08,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402984 to 211096. [2024-12-02 11:41:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211096 states, 211094 states have (on average 1.428235762267047) internal successors, (301492), 211095 states have internal predecessors, (301492), 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 11:41:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211096 states to 211096 states and 301492 transitions. [2024-12-02 11:41:08,914 INFO L78 Accepts]: Start accepts. Automaton has 211096 states and 301492 transitions. Word has length 121 [2024-12-02 11:41:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:08,915 INFO L471 AbstractCegarLoop]: Abstraction has 211096 states and 301492 transitions. [2024-12-02 11:41:08,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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 11:41:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 211096 states and 301492 transitions. [2024-12-02 11:41:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:41:08,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:08,923 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:08,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:41:08,924 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:08,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash -74615482, now seen corresponding path program 1 times [2024-12-02 11:41:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:08,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347717941] [2024-12-02 11:41:08,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:08,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 11:41:09,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347717941] [2024-12-02 11:41:09,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347717941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:09,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:09,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:41:09,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317527281] [2024-12-02 11:41:09,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:09,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:41:09,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:09,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:41:09,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:09,146 INFO L87 Difference]: Start difference. First operand 211096 states and 301492 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 11:41:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:20,314 INFO L93 Difference]: Finished difference Result 470314 states and 674237 transitions. [2024-12-02 11:41:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:41:20,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 121 [2024-12-02 11:41:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:20,812 INFO L225 Difference]: With dead ends: 470314 [2024-12-02 11:41:20,812 INFO L226 Difference]: Without dead ends: 436648 [2024-12-02 11:41:20,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:41:20,881 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11910 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11910 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:20,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11910 Valid, 5051 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436648 states. [2024-12-02 11:41:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436648 to 244760. [2024-12-02 11:41:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244760 states, 244758 states have (on average 1.4279083829742032) internal successors, (349492), 244759 states have internal predecessors, (349492), 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 11:41:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244760 states to 244760 states and 349492 transitions. [2024-12-02 11:41:29,113 INFO L78 Accepts]: Start accepts. Automaton has 244760 states and 349492 transitions. Word has length 121 [2024-12-02 11:41:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:29,114 INFO L471 AbstractCegarLoop]: Abstraction has 244760 states and 349492 transitions. [2024-12-02 11:41:29,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 11:41:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 244760 states and 349492 transitions. [2024-12-02 11:41:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:41:29,126 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:29,126 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:29,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:41:29,126 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:29,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:29,126 INFO L85 PathProgramCache]: Analyzing trace with hash 359920454, now seen corresponding path program 1 times [2024-12-02 11:41:29,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:29,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65252217] [2024-12-02 11:41:29,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:29,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:29,515 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:41:29,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:29,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65252217] [2024-12-02 11:41:29,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65252217] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:29,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:29,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:41:29,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755465453] [2024-12-02 11:41:29,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:29,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:41:29,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:29,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:41:29,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:29,518 INFO L87 Difference]: Start difference. First operand 244760 states and 349492 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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 11:41:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:43,939 INFO L93 Difference]: Finished difference Result 503978 states and 722237 transitions. [2024-12-02 11:41:43,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:41:43,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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 121 [2024-12-02 11:41:43,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:44,453 INFO L225 Difference]: With dead ends: 503978 [2024-12-02 11:41:44,453 INFO L226 Difference]: Without dead ends: 470312 [2024-12-02 11:41:44,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:41:44,517 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11731 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11731 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:44,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11731 Valid, 5312 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470312 states. [2024-12-02 11:41:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470312 to 278424. [2024-12-02 11:41:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278424 states, 278422 states have (on average 1.427660170532501) internal successors, (397492), 278423 states have internal predecessors, (397492), 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 11:41:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278424 states to 278424 states and 397492 transitions. [2024-12-02 11:41:54,066 INFO L78 Accepts]: Start accepts. Automaton has 278424 states and 397492 transitions. Word has length 121 [2024-12-02 11:41:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:54,066 INFO L471 AbstractCegarLoop]: Abstraction has 278424 states and 397492 transitions. [2024-12-02 11:41:54,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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 11:41:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 278424 states and 397492 transitions. [2024-12-02 11:41:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:41:54,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:54,074 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:54,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:41:54,074 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:54,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:54,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1305112506, now seen corresponding path program 1 times [2024-12-02 11:41:54,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:54,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446102620] [2024-12-02 11:41:54,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:54,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 11:41:54,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:54,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446102620] [2024-12-02 11:41:54,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446102620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:54,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:54,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:41:54,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325602413] [2024-12-02 11:41:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:54,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:41:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:54,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:41:54,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:54,297 INFO L87 Difference]: Start difference. First operand 278424 states and 397492 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 11:42:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:08,635 INFO L93 Difference]: Finished difference Result 537642 states and 770237 transitions. [2024-12-02 11:42:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:42:08,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 121 [2024-12-02 11:42:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:09,198 INFO L225 Difference]: With dead ends: 537642 [2024-12-02 11:42:09,198 INFO L226 Difference]: Without dead ends: 503976 [2024-12-02 11:42:09,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:42:09,274 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 11733 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11733 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:09,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11733 Valid, 5463 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:42:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503976 states. [2024-12-02 11:42:19,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503976 to 312088. [2024-12-02 11:42:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.42746550630275) internal successors, (445492), 312087 states have internal predecessors, (445492), 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 11:42:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 445492 transitions. [2024-12-02 11:42:20,417 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 445492 transitions. Word has length 121 [2024-12-02 11:42:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:20,417 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 445492 transitions. [2024-12-02 11:42:20,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 11:42:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 445492 transitions. [2024-12-02 11:42:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 11:42:20,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:20,427 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:20,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:42:20,427 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:20,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:20,428 INFO L85 PathProgramCache]: Analyzing trace with hash 152835943, now seen corresponding path program 1 times [2024-12-02 11:42:20,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:20,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394564385] [2024-12-02 11:42:20,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:20,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394564385] [2024-12-02 11:42:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394564385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:20,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:20,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:20,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983232114] [2024-12-02 11:42:20,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:20,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:20,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:20,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:20,512 INFO L87 Difference]: Start difference. First operand 312088 states and 445492 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 11:42:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:30,026 INFO L93 Difference]: Finished difference Result 621852 states and 887350 transitions. [2024-12-02 11:42:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:30,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2024-12-02 11:42:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:30,329 INFO L225 Difference]: With dead ends: 621852 [2024-12-02 11:42:30,329 INFO L226 Difference]: Without dead ends: 312090 [2024-12-02 11:42:30,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:30,405 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:30,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312090 states. [2024-12-02 11:42:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312090 to 312088. [2024-12-02 11:42:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.416186563959934) internal successors, (441972), 312087 states have internal predecessors, (441972), 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 11:42:41,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 441972 transitions. [2024-12-02 11:42:41,029 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 441972 transitions. Word has length 122 [2024-12-02 11:42:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 441972 transitions. [2024-12-02 11:42:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 11:42:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 441972 transitions. [2024-12-02 11:42:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:42:41,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:41,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:41,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:42:41,036 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:41,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash 550117598, now seen corresponding path program 1 times [2024-12-02 11:42:41,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:41,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171542281] [2024-12-02 11:42:41,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:41,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:41,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171542281] [2024-12-02 11:42:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171542281] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:41,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794705994] [2024-12-02 11:42:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:41,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:41,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:41,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:41,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:41,188 INFO L87 Difference]: Start difference. First operand 312088 states and 441972 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 11:42:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:45,048 INFO L93 Difference]: Finished difference Result 423990 states and 601297 transitions. [2024-12-02 11:42:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:45,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2024-12-02 11:42:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:45,159 INFO L225 Difference]: With dead ends: 423990 [2024-12-02 11:42:45,159 INFO L226 Difference]: Without dead ends: 114228 [2024-12-02 11:42:45,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:45,217 INFO L435 NwaCegarLoop]: 1661 mSDtfsCounter, 63 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:45,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114228 states. [2024-12-02 11:42:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114228 to 114219. [2024-12-02 11:42:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114219 states, 114217 states have (on average 1.4160326396245744) internal successors, (161735), 114218 states have internal predecessors, (161735), 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 11:42:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114219 states to 114219 states and 161735 transitions. [2024-12-02 11:42:49,055 INFO L78 Accepts]: Start accepts. Automaton has 114219 states and 161735 transitions. Word has length 123 [2024-12-02 11:42:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:49,055 INFO L471 AbstractCegarLoop]: Abstraction has 114219 states and 161735 transitions. [2024-12-02 11:42:49,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 11:42:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 114219 states and 161735 transitions. [2024-12-02 11:42:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:42:49,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:49,058 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:49,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:42:49,058 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:49,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1979176647, now seen corresponding path program 1 times [2024-12-02 11:42:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:49,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667902722] [2024-12-02 11:42:49,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:49,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667902722] [2024-12-02 11:42:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667902722] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:49,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707466506] [2024-12-02 11:42:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:49,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:49,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:49,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:49,143 INFO L87 Difference]: Start difference. First operand 114219 states and 161735 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 11:42:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:50,871 INFO L93 Difference]: Finished difference Result 170159 states and 240777 transitions. [2024-12-02 11:42:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:50,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2024-12-02 11:42:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:50,920 INFO L225 Difference]: With dead ends: 170159 [2024-12-02 11:42:50,920 INFO L226 Difference]: Without dead ends: 58285 [2024-12-02 11:42:50,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:50,948 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 65 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:50,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58285 states. [2024-12-02 11:42:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58285 to 58283. [2024-12-02 11:42:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58283 states, 58281 states have (on average 1.4084693124689007) internal successors, (82087), 58282 states have internal predecessors, (82087), 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 11:42:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58283 states to 58283 states and 82087 transitions. [2024-12-02 11:42:52,715 INFO L78 Accepts]: Start accepts. Automaton has 58283 states and 82087 transitions. Word has length 124 [2024-12-02 11:42:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:52,715 INFO L471 AbstractCegarLoop]: Abstraction has 58283 states and 82087 transitions. [2024-12-02 11:42:52,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 11:42:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 58283 states and 82087 transitions. [2024-12-02 11:42:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 11:42:52,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:52,717 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:52,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:42:52,717 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:52,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1946826357, now seen corresponding path program 1 times [2024-12-02 11:42:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:52,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688437985] [2024-12-02 11:42:52,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:52,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:52,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688437985] [2024-12-02 11:42:52,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688437985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:52,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056235033] [2024-12-02 11:42:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:52,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:52,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:52,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:52,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:52,798 INFO L87 Difference]: Start difference. First operand 58283 states and 82087 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 11:42:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:53,544 INFO L93 Difference]: Finished difference Result 86255 states and 121305 transitions. [2024-12-02 11:42:53,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:53,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2024-12-02 11:42:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:53,576 INFO L225 Difference]: With dead ends: 86255 [2024-12-02 11:42:53,576 INFO L226 Difference]: Without dead ends: 30317 [2024-12-02 11:42:53,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:53,597 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 62 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:53,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30317 states. [2024-12-02 11:42:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30317 to 30315. [2024-12-02 11:42:54,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30315 states, 30313 states have (on average 1.4042490020783163) internal successors, (42567), 30314 states have internal predecessors, (42567), 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 11:42:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30315 states to 30315 states and 42567 transitions. [2024-12-02 11:42:54,595 INFO L78 Accepts]: Start accepts. Automaton has 30315 states and 42567 transitions. Word has length 126 [2024-12-02 11:42:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:54,595 INFO L471 AbstractCegarLoop]: Abstraction has 30315 states and 42567 transitions. [2024-12-02 11:42:54,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 11:42:54,595 INFO L276 IsEmpty]: Start isEmpty. Operand 30315 states and 42567 transitions. [2024-12-02 11:42:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 11:42:54,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:54,597 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:54,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:42:54,597 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:54,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1691477923, now seen corresponding path program 1 times [2024-12-02 11:42:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:54,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437852611] [2024-12-02 11:42:54,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:54,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:54,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:54,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437852611] [2024-12-02 11:42:54,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437852611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:54,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:54,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:54,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516468659] [2024-12-02 11:42:54,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:54,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:54,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:54,678 INFO L87 Difference]: Start difference. First operand 30315 states and 42567 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 11:42:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:55,070 INFO L93 Difference]: Finished difference Result 44303 states and 62025 transitions. [2024-12-02 11:42:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:55,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2024-12-02 11:42:55,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:55,089 INFO L225 Difference]: With dead ends: 44303 [2024-12-02 11:42:55,089 INFO L226 Difference]: Without dead ends: 16333 [2024-12-02 11:42:55,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:55,101 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 59 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:55,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16333 states. [2024-12-02 11:42:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16333 to 16331. [2024-12-02 11:42:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16331 states, 16329 states have (on average 1.4060260885541063) internal successors, (22959), 16330 states have internal predecessors, (22959), 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 11:42:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16331 states to 16331 states and 22959 transitions. [2024-12-02 11:42:55,734 INFO L78 Accepts]: Start accepts. Automaton has 16331 states and 22959 transitions. Word has length 128 [2024-12-02 11:42:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:55,734 INFO L471 AbstractCegarLoop]: Abstraction has 16331 states and 22959 transitions. [2024-12-02 11:42:55,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 11:42:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 16331 states and 22959 transitions. [2024-12-02 11:42:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 11:42:55,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:55,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:55,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:42:55,735 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:55,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash -740149841, now seen corresponding path program 1 times [2024-12-02 11:42:55,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:55,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453647676] [2024-12-02 11:42:55,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:55,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:55,811 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:55,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:55,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453647676] [2024-12-02 11:42:55,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453647676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:55,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:55,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007796429] [2024-12-02 11:42:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:55,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:55,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:55,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:55,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:55,812 INFO L87 Difference]: Start difference. First operand 16331 states and 22959 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 11:42:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:56,012 INFO L93 Difference]: Finished difference Result 23327 states and 32613 transitions. [2024-12-02 11:42:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:56,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2024-12-02 11:42:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:56,026 INFO L225 Difference]: With dead ends: 23327 [2024-12-02 11:42:56,026 INFO L226 Difference]: Without dead ends: 9341 [2024-12-02 11:42:56,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:56,032 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 56 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:56,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:56,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2024-12-02 11:42:56,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9339. [2024-12-02 11:42:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9339 states, 9337 states have (on average 1.4170504444682446) internal successors, (13231), 9338 states have internal predecessors, (13231), 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 11:42:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9339 states to 9339 states and 13231 transitions. [2024-12-02 11:42:56,263 INFO L78 Accepts]: Start accepts. Automaton has 9339 states and 13231 transitions. Word has length 130 [2024-12-02 11:42:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:56,263 INFO L471 AbstractCegarLoop]: Abstraction has 9339 states and 13231 transitions. [2024-12-02 11:42:56,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 11:42:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9339 states and 13231 transitions. [2024-12-02 11:42:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 11:42:56,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:56,264 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:56,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:42:56,264 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:56,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash 875250049, now seen corresponding path program 1 times [2024-12-02 11:42:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001492239] [2024-12-02 11:42:56,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001492239] [2024-12-02 11:42:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001492239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:56,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3219208] [2024-12-02 11:42:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:56,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:56,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:56,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:56,343 INFO L87 Difference]: Start difference. First operand 9339 states and 13231 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 11:42:56,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:56,453 INFO L93 Difference]: Finished difference Result 12839 states and 18021 transitions. [2024-12-02 11:42:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:56,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2024-12-02 11:42:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:56,464 INFO L225 Difference]: With dead ends: 12839 [2024-12-02 11:42:56,464 INFO L226 Difference]: Without dead ends: 5845 [2024-12-02 11:42:56,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:56,468 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 53 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:56,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5845 states. [2024-12-02 11:42:56,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 5843. [2024-12-02 11:42:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5843 states, 5841 states have (on average 1.4389659304913542) internal successors, (8405), 5842 states have internal predecessors, (8405), 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 11:42:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5843 states to 5843 states and 8405 transitions. [2024-12-02 11:42:56,596 INFO L78 Accepts]: Start accepts. Automaton has 5843 states and 8405 transitions. Word has length 132 [2024-12-02 11:42:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:56,596 INFO L471 AbstractCegarLoop]: Abstraction has 5843 states and 8405 transitions. [2024-12-02 11:42:56,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 11:42:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5843 states and 8405 transitions. [2024-12-02 11:42:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 11:42:56,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:56,597 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:56,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:42:56,597 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:56,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1846172627, now seen corresponding path program 1 times [2024-12-02 11:42:56,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:56,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755762] [2024-12-02 11:42:56,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:56,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:56,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755762] [2024-12-02 11:42:56,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:56,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:56,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92969348] [2024-12-02 11:42:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:56,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:42:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:56,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:42:56,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:56,673 INFO L87 Difference]: Start difference. First operand 5843 states and 8405 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 11:42:56,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:56,740 INFO L93 Difference]: Finished difference Result 7595 states and 10782 transitions. [2024-12-02 11:42:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:42:56,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2024-12-02 11:42:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:56,752 INFO L225 Difference]: With dead ends: 7595 [2024-12-02 11:42:56,752 INFO L226 Difference]: Without dead ends: 4097 [2024-12-02 11:42:56,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:42:56,754 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 50 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:56,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3156 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2024-12-02 11:42:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4095. [2024-12-02 11:42:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4095 states, 4093 states have (on average 1.4686049352553139) internal successors, (6011), 4094 states have internal predecessors, (6011), 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 11:42:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4095 states to 4095 states and 6011 transitions. [2024-12-02 11:42:56,833 INFO L78 Accepts]: Start accepts. Automaton has 4095 states and 6011 transitions. Word has length 134 [2024-12-02 11:42:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:56,833 INFO L471 AbstractCegarLoop]: Abstraction has 4095 states and 6011 transitions. [2024-12-02 11:42:56,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 11:42:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4095 states and 6011 transitions. [2024-12-02 11:42:56,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 11:42:56,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:56,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:56,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:42:56,835 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:56,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1109852547, now seen corresponding path program 1 times [2024-12-02 11:42:56,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:56,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47153054] [2024-12-02 11:42:56,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:56,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47153054] [2024-12-02 11:42:56,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47153054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:56,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:42:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048288561] [2024-12-02 11:42:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:56,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:42:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:56,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:42:56,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:42:56,966 INFO L87 Difference]: Start difference. First operand 4095 states and 6011 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 11:43:00,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:00,656 INFO L93 Difference]: Finished difference Result 7138 states and 11659 transitions. [2024-12-02 11:43:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:43:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2024-12-02 11:43:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:00,668 INFO L225 Difference]: With dead ends: 7138 [2024-12-02 11:43:00,668 INFO L226 Difference]: Without dead ends: 5597 [2024-12-02 11:43:00,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:43:00,670 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 852 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 4468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:00,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1042 Invalid, 4468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 11:43:00,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-12-02 11:43:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5597. [2024-12-02 11:43:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5595 states have (on average 1.3563896336014298) internal successors, (7589), 5596 states have internal predecessors, (7589), 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 11:43:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 7589 transitions. [2024-12-02 11:43:00,760 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 7589 transitions. Word has length 134 [2024-12-02 11:43:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:00,761 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 7589 transitions. [2024-12-02 11:43:00,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 11:43:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 7589 transitions. [2024-12-02 11:43:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 11:43:00,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:00,761 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:00,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 11:43:00,762 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:00,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash 963159205, now seen corresponding path program 1 times [2024-12-02 11:43:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314818712] [2024-12-02 11:43:00,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:01,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:01,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314818712] [2024-12-02 11:43:01,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314818712] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:01,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855875865] [2024-12-02 11:43:01,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:01,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:01,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:01,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:43:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:01,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:43:01,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:43:01,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:43:02,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855875865] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:02,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:02,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 11:43:02,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141608249] [2024-12-02 11:43:02,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:02,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 11:43:02,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:02,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 11:43:02,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:43:02,527 INFO L87 Difference]: Start difference. First operand 5597 states and 7589 transitions. Second operand has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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 11:43:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:05,120 INFO L93 Difference]: Finished difference Result 15348 states and 20628 transitions. [2024-12-02 11:43:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 11:43:05,121 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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 136 [2024-12-02 11:43:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:05,144 INFO L225 Difference]: With dead ends: 15348 [2024-12-02 11:43:05,144 INFO L226 Difference]: Without dead ends: 13598 [2024-12-02 11:43:05,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=590, Invalid=2490, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 11:43:05,150 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 17239 mSDsluCounter, 6431 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17239 SdHoareTripleChecker+Valid, 7939 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:05,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17239 Valid, 7939 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:43:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13598 states. [2024-12-02 11:43:05,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13598 to 13322. [2024-12-02 11:43:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13322 states, 13320 states have (on average 1.3278528528528528) internal successors, (17687), 13321 states have internal predecessors, (17687), 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 11:43:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13322 states to 13322 states and 17687 transitions. [2024-12-02 11:43:05,488 INFO L78 Accepts]: Start accepts. Automaton has 13322 states and 17687 transitions. Word has length 136 [2024-12-02 11:43:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:05,488 INFO L471 AbstractCegarLoop]: Abstraction has 13322 states and 17687 transitions. [2024-12-02 11:43:05,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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 11:43:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13322 states and 17687 transitions. [2024-12-02 11:43:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 11:43:05,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:05,490 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:05,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 11:43:05,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:05,690 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:05,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:05,690 INFO L85 PathProgramCache]: Analyzing trace with hash -407239470, now seen corresponding path program 1 times [2024-12-02 11:43:05,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:05,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180016190] [2024-12-02 11:43:05,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:05,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:06,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180016190] [2024-12-02 11:43:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180016190] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978730557] [2024-12-02 11:43:06,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:06,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:06,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:06,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:06,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:43:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:06,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:43:06,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:07,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:08,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978730557] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:08,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:08,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-12-02 11:43:08,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984836829] [2024-12-02 11:43:08,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:08,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 11:43:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:08,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 11:43:08,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2024-12-02 11:43:08,723 INFO L87 Difference]: Start difference. First operand 13322 states and 17687 transitions. Second operand has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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 11:43:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:13,140 INFO L93 Difference]: Finished difference Result 49554 states and 65036 transitions. [2024-12-02 11:43:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 11:43:13,141 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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 137 [2024-12-02 11:43:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:13,173 INFO L225 Difference]: With dead ends: 49554 [2024-12-02 11:43:13,173 INFO L226 Difference]: Without dead ends: 40169 [2024-12-02 11:43:13,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1217, Invalid=4789, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 11:43:13,184 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 29247 mSDsluCounter, 6907 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29247 SdHoareTripleChecker+Valid, 8415 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:13,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29247 Valid, 8415 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:43:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40169 states. [2024-12-02 11:43:14,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40169 to 39509. [2024-12-02 11:43:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39509 states, 39507 states have (on average 1.2954160022274535) internal successors, (51178), 39508 states have internal predecessors, (51178), 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 11:43:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39509 states to 39509 states and 51178 transitions. [2024-12-02 11:43:14,531 INFO L78 Accepts]: Start accepts. Automaton has 39509 states and 51178 transitions. Word has length 137 [2024-12-02 11:43:14,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:14,531 INFO L471 AbstractCegarLoop]: Abstraction has 39509 states and 51178 transitions. [2024-12-02 11:43:14,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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 11:43:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 39509 states and 51178 transitions. [2024-12-02 11:43:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 11:43:14,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:14,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:14,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:43:14,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:14,733 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:14,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1438973998, now seen corresponding path program 1 times [2024-12-02 11:43:14,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:14,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810128938] [2024-12-02 11:43:14,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:14,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:15,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:15,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810128938] [2024-12-02 11:43:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810128938] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:15,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974424279] [2024-12-02 11:43:15,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:15,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:15,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:15,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:15,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:43:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:15,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:43:15,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:15,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:17,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974424279] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:17,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:17,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:43:17,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141072221] [2024-12-02 11:43:17,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:17,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:43:17,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:17,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:43:17,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:43:17,065 INFO L87 Difference]: Start difference. First operand 39509 states and 51178 transitions. Second operand has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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 11:43:24,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:24,589 INFO L93 Difference]: Finished difference Result 240273 states and 311890 transitions. [2024-12-02 11:43:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 11:43:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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 137 [2024-12-02 11:43:24,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:24,771 INFO L225 Difference]: With dead ends: 240273 [2024-12-02 11:43:24,771 INFO L226 Difference]: Without dead ends: 205251 [2024-12-02 11:43:24,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=828, Invalid=3332, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 11:43:24,809 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 27049 mSDsluCounter, 7211 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27049 SdHoareTripleChecker+Valid, 8766 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:24,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27049 Valid, 8766 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:43:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205251 states. [2024-12-02 11:43:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205251 to 147385. [2024-12-02 11:43:30,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147385 states, 147383 states have (on average 1.2674731821173406) internal successors, (186804), 147384 states have internal predecessors, (186804), 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 11:43:30,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147385 states to 147385 states and 186804 transitions. [2024-12-02 11:43:30,847 INFO L78 Accepts]: Start accepts. Automaton has 147385 states and 186804 transitions. Word has length 137 [2024-12-02 11:43:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:30,847 INFO L471 AbstractCegarLoop]: Abstraction has 147385 states and 186804 transitions. [2024-12-02 11:43:30,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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 11:43:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 147385 states and 186804 transitions. [2024-12-02 11:43:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:43:30,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:30,851 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:30,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:43:31,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 11:43:31,052 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:31,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1250497762, now seen corresponding path program 1 times [2024-12-02 11:43:31,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:31,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052635609] [2024-12-02 11:43:31,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:31,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:31,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:31,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052635609] [2024-12-02 11:43:31,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052635609] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:31,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177232290] [2024-12-02 11:43:31,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:31,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:31,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:31,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:31,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:43:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:31,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:43:31,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:32,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:33,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177232290] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:33,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:33,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 11:43:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077332659] [2024-12-02 11:43:33,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:33,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 11:43:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:33,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 11:43:33,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:43:33,607 INFO L87 Difference]: Start difference. First operand 147385 states and 186804 transitions. Second operand has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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 11:43:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:40,892 INFO L93 Difference]: Finished difference Result 331933 states and 420314 transitions. [2024-12-02 11:43:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 11:43:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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 139 [2024-12-02 11:43:40,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:41,096 INFO L225 Difference]: With dead ends: 331933 [2024-12-02 11:43:41,096 INFO L226 Difference]: Without dead ends: 193969 [2024-12-02 11:43:41,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 11:43:41,182 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 22300 mSDsluCounter, 8092 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22300 SdHoareTripleChecker+Valid, 9611 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:41,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22300 Valid, 9611 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:43:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193969 states. [2024-12-02 11:43:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193969 to 183997. [2024-12-02 11:43:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183997 states, 183995 states have (on average 1.2498763553357428) internal successors, (229971), 183996 states have internal predecessors, (229971), 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 11:43:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183997 states to 183997 states and 229971 transitions. [2024-12-02 11:43:48,512 INFO L78 Accepts]: Start accepts. Automaton has 183997 states and 229971 transitions. Word has length 139 [2024-12-02 11:43:48,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:48,512 INFO L471 AbstractCegarLoop]: Abstraction has 183997 states and 229971 transitions. [2024-12-02 11:43:48,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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 11:43:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 183997 states and 229971 transitions. [2024-12-02 11:43:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:43:48,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:48,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:48,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:43:48,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 11:43:48,716 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:48,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2105197554, now seen corresponding path program 1 times [2024-12-02 11:43:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:48,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414729940] [2024-12-02 11:43:48,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:49,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414729940] [2024-12-02 11:43:49,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414729940] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154605443] [2024-12-02 11:43:49,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:49,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:49,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:49,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:49,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e4ee58-8be1-4437-86dc-c88aa12db93b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:43:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:49,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 11:43:49,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:50,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:43:52,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154605443] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:52,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:52,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 13] total 31 [2024-12-02 11:43:52,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184871062] [2024-12-02 11:43:52,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:52,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 11:43:52,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:52,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 11:43:52,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2024-12-02 11:43:52,612 INFO L87 Difference]: Start difference. First operand 183997 states and 229971 transitions. Second operand has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 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)