./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/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 e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:06:02,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:06:02,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:06:02,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:06:02,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:06:02,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:06:02,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:06:02,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:06:02,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:06:02,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:06:02,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:06:02,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:06:02,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:06:02,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:06:02,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:06:02,298 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:06:02,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:06:02,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:06:02,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:06:02,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:06:02,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:06:02,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:06:02,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:06:02,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:06:02,300 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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/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 -> e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 [2024-12-02 07:06:02,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:06:02,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:06:02,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:06:02,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:06:02,569 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:06:02,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:06:05,508 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/data/32dff5326/df14f28a71a54309aa31a0739a5f6d81/FLAG6346d0e61 [2024-12-02 07:06:05,747 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:06:05,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:06:05,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/data/32dff5326/df14f28a71a54309aa31a0739a5f6d81/FLAG6346d0e61 [2024-12-02 07:06:05,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/data/32dff5326/df14f28a71a54309aa31a0739a5f6d81 [2024-12-02 07:06:05,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:06:05,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:06:05,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:06:05,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:06:05,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:06:05,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:06:05" (1/1) ... [2024-12-02 07:06:05,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@facdd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:05, skipping insertion in model container [2024-12-02 07:06:05,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:06:05" (1/1) ... [2024-12-02 07:06:05,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:06:05,991 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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-12-02 07:06:06,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:06:06,054 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:06:06,106 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_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-12-02 07:06:06,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:06:06,166 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:06:06,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06 WrapperNode [2024-12-02 07:06:06,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:06:06,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:06:06,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:06:06,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:06:06,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,223 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 695 [2024-12-02 07:06:06,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:06:06,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:06:06,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:06:06,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:06:06,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,254 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 07:06:06,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,263 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:06:06,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:06:06,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:06:06,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:06:06,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (1/1) ... [2024-12-02 07:06:06,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:06:06,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:06,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:06:06,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:06:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:06:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:06:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:06:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:06:06,445 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:06:06,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:06:07,123 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-12-02 07:06:07,123 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:06:07,138 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:06:07,139 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:06:07,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:06:07 BoogieIcfgContainer [2024-12-02 07:06:07,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:06:07,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:06:07,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:06:07,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:06:07,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:06:05" (1/3) ... [2024-12-02 07:06:07,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd61f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:06:07, skipping insertion in model container [2024-12-02 07:06:07,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:06:06" (2/3) ... [2024-12-02 07:06:07,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd61f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:06:07, skipping insertion in model container [2024-12-02 07:06:07,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:06:07" (3/3) ... [2024-12-02 07:06:07,151 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:06:07,168 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:06:07,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 170 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 07:06:07,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:06:07,242 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;@38b8638f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:06:07,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:06:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 168 states have (on average 1.7202380952380953) internal successors, (289), 169 states have internal predecessors, (289), 0 states have call successors, (0), 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 07:06:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 07:06:07,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:07,254 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 07:06:07,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:07,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1270648051, now seen corresponding path program 1 times [2024-12-02 07:06:07,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873566593] [2024-12-02 07:06:07,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:07,745 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 07:06:07,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873566593] [2024-12-02 07:06:07,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873566593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:07,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:07,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:07,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739875629] [2024-12-02 07:06:07,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:07,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:07,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:07,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:07,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:07,768 INFO L87 Difference]: Start difference. First operand has 170 states, 168 states have (on average 1.7202380952380953) internal successors, (289), 169 states have internal predecessors, (289), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 07:06:07,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:07,985 INFO L93 Difference]: Finished difference Result 605 states and 979 transitions. [2024-12-02 07:06:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 07:06:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:07,998 INFO L225 Difference]: With dead ends: 605 [2024-12-02 07:06:07,998 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 07:06:08,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:08,004 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 1748 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:08,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 958 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:06:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 07:06:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 260. [2024-12-02 07:06:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 0 states have call successors, (0), 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 07:06:08,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 391 transitions. [2024-12-02 07:06:08,048 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 391 transitions. Word has length 63 [2024-12-02 07:06:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:08,049 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 391 transitions. [2024-12-02 07:06:08,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 07:06:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 391 transitions. [2024-12-02 07:06:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 07:06:08,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:08,051 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] [2024-12-02 07:06:08,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:06:08,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:08,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:08,052 INFO L85 PathProgramCache]: Analyzing trace with hash 473041692, now seen corresponding path program 1 times [2024-12-02 07:06:08,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:08,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937493032] [2024-12-02 07:06:08,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:08,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:08,254 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 07:06:08,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:08,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937493032] [2024-12-02 07:06:08,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937493032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:08,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:08,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:08,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268859090] [2024-12-02 07:06:08,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:08,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:08,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:08,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:08,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:08,257 INFO L87 Difference]: Start difference. First operand 260 states and 391 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 07:06:08,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:08,454 INFO L93 Difference]: Finished difference Result 968 states and 1495 transitions. [2024-12-02 07:06:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:08,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 07:06:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:08,458 INFO L225 Difference]: With dead ends: 968 [2024-12-02 07:06:08,458 INFO L226 Difference]: Without dead ends: 766 [2024-12-02 07:06:08,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:08,460 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 832 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:08,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1005 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-12-02 07:06:08,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 760. [2024-12-02 07:06:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.533596837944664) internal successors, (1164), 759 states have internal predecessors, (1164), 0 states have call successors, (0), 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 07:06:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1164 transitions. [2024-12-02 07:06:08,494 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1164 transitions. Word has length 64 [2024-12-02 07:06:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:08,494 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1164 transitions. [2024-12-02 07:06:08,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 07:06:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1164 transitions. [2024-12-02 07:06:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:06:08,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:08,497 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] [2024-12-02 07:06:08,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:06:08,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:08,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:08,498 INFO L85 PathProgramCache]: Analyzing trace with hash -222648813, now seen corresponding path program 1 times [2024-12-02 07:06:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533652604] [2024-12-02 07:06:08,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:08,634 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 07:06:08,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:08,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533652604] [2024-12-02 07:06:08,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533652604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:08,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:08,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:06:08,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152708207] [2024-12-02 07:06:08,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:08,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:08,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:08,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:08,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:08,636 INFO L87 Difference]: Start difference. First operand 760 states and 1164 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:08,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:08,890 INFO L93 Difference]: Finished difference Result 2032 states and 3154 transitions. [2024-12-02 07:06:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:08,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-12-02 07:06:08,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:08,895 INFO L225 Difference]: With dead ends: 2032 [2024-12-02 07:06:08,895 INFO L226 Difference]: Without dead ends: 1318 [2024-12-02 07:06:08,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:08,897 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 944 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:08,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 235 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:08,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-12-02 07:06:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1316. [2024-12-02 07:06:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 1.5429657794676805) internal successors, (2029), 1315 states have internal predecessors, (2029), 0 states have call successors, (0), 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 07:06:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2029 transitions. [2024-12-02 07:06:08,946 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2029 transitions. Word has length 65 [2024-12-02 07:06:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:08,947 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 2029 transitions. [2024-12-02 07:06:08,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2029 transitions. [2024-12-02 07:06:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:06:08,949 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:08,949 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] [2024-12-02 07:06:08,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:06:08,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:08,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1106030069, now seen corresponding path program 1 times [2024-12-02 07:06:08,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:08,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950504377] [2024-12-02 07:06:08,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:08,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:09,096 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 07:06:09,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:09,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950504377] [2024-12-02 07:06:09,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950504377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:09,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:09,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:06:09,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635309694] [2024-12-02 07:06:09,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:09,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:09,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:09,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:09,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:09,098 INFO L87 Difference]: Start difference. First operand 1316 states and 2029 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:09,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:09,334 INFO L93 Difference]: Finished difference Result 3528 states and 5495 transitions. [2024-12-02 07:06:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-12-02 07:06:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:09,344 INFO L225 Difference]: With dead ends: 3528 [2024-12-02 07:06:09,344 INFO L226 Difference]: Without dead ends: 2308 [2024-12-02 07:06:09,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:09,347 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 870 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:09,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 241 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:09,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2024-12-02 07:06:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2306. [2024-12-02 07:06:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.5475054229934924) internal successors, (3567), 2305 states have internal predecessors, (3567), 0 states have call successors, (0), 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 07:06:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3567 transitions. [2024-12-02 07:06:09,428 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3567 transitions. Word has length 65 [2024-12-02 07:06:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:09,428 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 3567 transitions. [2024-12-02 07:06:09,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3567 transitions. [2024-12-02 07:06:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:06:09,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:09,431 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] [2024-12-02 07:06:09,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:06:09,431 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:09,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 244768548, now seen corresponding path program 1 times [2024-12-02 07:06:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:09,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062276752] [2024-12-02 07:06:09,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:09,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:09,606 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 07:06:09,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062276752] [2024-12-02 07:06:09,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062276752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:09,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:09,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:06:09,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044081227] [2024-12-02 07:06:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:09,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:09,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:09,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:09,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:09,608 INFO L87 Difference]: Start difference. First operand 2306 states and 3567 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:09,879 INFO L93 Difference]: Finished difference Result 6569 states and 10218 transitions. [2024-12-02 07:06:09,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:09,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-12-02 07:06:09,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:09,898 INFO L225 Difference]: With dead ends: 6569 [2024-12-02 07:06:09,898 INFO L226 Difference]: Without dead ends: 4332 [2024-12-02 07:06:09,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:09,903 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 900 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:09,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 237 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2024-12-02 07:06:10,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 4330. [2024-12-02 07:06:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4330 states, 4329 states have (on average 1.5456225456225456) internal successors, (6691), 4329 states have internal predecessors, (6691), 0 states have call successors, (0), 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 07:06:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4330 states to 4330 states and 6691 transitions. [2024-12-02 07:06:10,070 INFO L78 Accepts]: Start accepts. Automaton has 4330 states and 6691 transitions. Word has length 65 [2024-12-02 07:06:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:10,070 INFO L471 AbstractCegarLoop]: Abstraction has 4330 states and 6691 transitions. [2024-12-02 07:06:10,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 07:06:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4330 states and 6691 transitions. [2024-12-02 07:06:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 07:06:10,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:10,072 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] [2024-12-02 07:06:10,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:06:10,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:10,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2050472616, now seen corresponding path program 1 times [2024-12-02 07:06:10,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447243874] [2024-12-02 07:06:10,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:10,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:10,493 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 07:06:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447243874] [2024-12-02 07:06:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447243874] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:10,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:06:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329455724] [2024-12-02 07:06:10,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:10,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:10,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:10,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:10,495 INFO L87 Difference]: Start difference. First operand 4330 states and 6691 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 07:06:10,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:10,537 INFO L93 Difference]: Finished difference Result 4460 states and 6884 transitions. [2024-12-02 07:06:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:10,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-02 07:06:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:10,554 INFO L225 Difference]: With dead ends: 4460 [2024-12-02 07:06:10,554 INFO L226 Difference]: Without dead ends: 4458 [2024-12-02 07:06:10,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:06:10,556 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 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 07:06:10,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:10,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2024-12-02 07:06:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4458. [2024-12-02 07:06:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 4457 states have (on average 1.5299528831052278) internal successors, (6819), 4457 states have internal predecessors, (6819), 0 states have call successors, (0), 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 07:06:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6819 transitions. [2024-12-02 07:06:10,669 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 6819 transitions. Word has length 66 [2024-12-02 07:06:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:10,669 INFO L471 AbstractCegarLoop]: Abstraction has 4458 states and 6819 transitions. [2024-12-02 07:06:10,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 07:06:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 6819 transitions. [2024-12-02 07:06:10,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 07:06:10,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:10,672 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] [2024-12-02 07:06:10,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:06:10,672 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:10,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash -598564162, now seen corresponding path program 1 times [2024-12-02 07:06:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:10,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458232783] [2024-12-02 07:06:10,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:10,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:11,165 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 07:06:11,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:11,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458232783] [2024-12-02 07:06:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458232783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:11,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:06:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720079881] [2024-12-02 07:06:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:11,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:11,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:11,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:11,168 INFO L87 Difference]: Start difference. First operand 4458 states and 6819 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:11,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:11,822 INFO L93 Difference]: Finished difference Result 9127 states and 13862 transitions. [2024-12-02 07:06:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:06:11,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-12-02 07:06:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:11,841 INFO L225 Difference]: With dead ends: 9127 [2024-12-02 07:06:11,841 INFO L226 Difference]: Without dead ends: 6413 [2024-12-02 07:06:11,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:06:11,846 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1535 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:11,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 739 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2024-12-02 07:06:11,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 4553. [2024-12-02 07:06:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4553 states, 4552 states have (on average 1.5259226713532512) internal successors, (6946), 4552 states have internal predecessors, (6946), 0 states have call successors, (0), 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 07:06:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 6946 transitions. [2024-12-02 07:06:11,979 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 6946 transitions. Word has length 67 [2024-12-02 07:06:11,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:11,979 INFO L471 AbstractCegarLoop]: Abstraction has 4553 states and 6946 transitions. [2024-12-02 07:06:11,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:11,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 6946 transitions. [2024-12-02 07:06:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 07:06:11,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:11,982 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] [2024-12-02 07:06:11,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:06:11,982 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:11,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash -354598274, now seen corresponding path program 1 times [2024-12-02 07:06:11,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:11,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022739521] [2024-12-02 07:06:11,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:11,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:12,424 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 07:06:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:12,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022739521] [2024-12-02 07:06:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022739521] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:12,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:12,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:06:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732974144] [2024-12-02 07:06:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:12,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:12,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:12,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:12,426 INFO L87 Difference]: Start difference. First operand 4553 states and 6946 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:12,980 INFO L93 Difference]: Finished difference Result 5894 states and 8918 transitions. [2024-12-02 07:06:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:06:12,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-12-02 07:06:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:12,993 INFO L225 Difference]: With dead ends: 5894 [2024-12-02 07:06:12,994 INFO L226 Difference]: Without dead ends: 5235 [2024-12-02 07:06:12,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:06:12,996 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1272 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:12,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 728 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:13,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2024-12-02 07:06:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4553. [2024-12-02 07:06:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4553 states, 4552 states have (on average 1.5254833040421794) internal successors, (6944), 4552 states have internal predecessors, (6944), 0 states have call successors, (0), 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 07:06:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 6944 transitions. [2024-12-02 07:06:13,072 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 6944 transitions. Word has length 67 [2024-12-02 07:06:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:13,072 INFO L471 AbstractCegarLoop]: Abstraction has 4553 states and 6944 transitions. [2024-12-02 07:06:13,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 6944 transitions. [2024-12-02 07:06:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 07:06:13,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:13,074 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] [2024-12-02 07:06:13,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:06:13,074 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:13,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:13,075 INFO L85 PathProgramCache]: Analyzing trace with hash 878399134, now seen corresponding path program 1 times [2024-12-02 07:06:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:13,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365088011] [2024-12-02 07:06:13,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:13,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:13,480 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 07:06:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365088011] [2024-12-02 07:06:13,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365088011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:13,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:13,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:06:13,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248064477] [2024-12-02 07:06:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:13,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:13,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:13,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:13,482 INFO L87 Difference]: Start difference. First operand 4553 states and 6944 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:14,129 INFO L93 Difference]: Finished difference Result 7674 states and 11612 transitions. [2024-12-02 07:06:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:06:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-12-02 07:06:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:14,143 INFO L225 Difference]: With dead ends: 7674 [2024-12-02 07:06:14,144 INFO L226 Difference]: Without dead ends: 6004 [2024-12-02 07:06:14,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:06:14,147 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 1362 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:14,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 805 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2024-12-02 07:06:14,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 4694. [2024-12-02 07:06:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4694 states, 4693 states have (on average 1.5201363733219688) internal successors, (7134), 4693 states have internal predecessors, (7134), 0 states have call successors, (0), 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 07:06:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 7134 transitions. [2024-12-02 07:06:14,206 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 7134 transitions. Word has length 67 [2024-12-02 07:06:14,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:14,206 INFO L471 AbstractCegarLoop]: Abstraction has 4694 states and 7134 transitions. [2024-12-02 07:06:14,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:14,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 7134 transitions. [2024-12-02 07:06:14,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 07:06:14,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:14,207 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] [2024-12-02 07:06:14,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:06:14,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:14,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:14,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1495323364, now seen corresponding path program 1 times [2024-12-02 07:06:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204675278] [2024-12-02 07:06:14,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:14,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:14,279 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 07:06:14,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:14,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204675278] [2024-12-02 07:06:14,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204675278] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:14,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:14,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:06:14,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966411221] [2024-12-02 07:06:14,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:14,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:14,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:14,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:14,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:14,280 INFO L87 Difference]: Start difference. First operand 4694 states and 7134 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:14,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:14,479 INFO L93 Difference]: Finished difference Result 12742 states and 19425 transitions. [2024-12-02 07:06:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:14,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-12-02 07:06:14,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:14,491 INFO L225 Difference]: With dead ends: 12742 [2024-12-02 07:06:14,491 INFO L226 Difference]: Without dead ends: 8096 [2024-12-02 07:06:14,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:14,496 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 961 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:14,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 240 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2024-12-02 07:06:14,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 8094. [2024-12-02 07:06:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8094 states, 8093 states have (on average 1.517237118497467) internal successors, (12279), 8093 states have internal predecessors, (12279), 0 states have call successors, (0), 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 07:06:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8094 states to 8094 states and 12279 transitions. [2024-12-02 07:06:14,573 INFO L78 Accepts]: Start accepts. Automaton has 8094 states and 12279 transitions. Word has length 67 [2024-12-02 07:06:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:14,573 INFO L471 AbstractCegarLoop]: Abstraction has 8094 states and 12279 transitions. [2024-12-02 07:06:14,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 07:06:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 8094 states and 12279 transitions. [2024-12-02 07:06:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 07:06:14,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:14,575 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] [2024-12-02 07:06:14,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:06:14,575 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:14,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1249029969, now seen corresponding path program 1 times [2024-12-02 07:06:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:14,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336822677] [2024-12-02 07:06:14,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:14,717 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 07:06:14,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336822677] [2024-12-02 07:06:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336822677] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:14,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:14,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:06:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31617498] [2024-12-02 07:06:14,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:14,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:06:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:14,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:06:14,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:06:14,719 INFO L87 Difference]: Start difference. First operand 8094 states and 12279 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:14,799 INFO L93 Difference]: Finished difference Result 21234 states and 32297 transitions. [2024-12-02 07:06:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-12-02 07:06:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:14,825 INFO L225 Difference]: With dead ends: 21234 [2024-12-02 07:06:14,825 INFO L226 Difference]: Without dead ends: 14064 [2024-12-02 07:06:14,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:06:14,834 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:14,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 571 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:14,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14064 states. [2024-12-02 07:06:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14064 to 13958. [2024-12-02 07:06:14,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13958 states, 13957 states have (on average 1.5034033101669413) internal successors, (20983), 13957 states have internal predecessors, (20983), 0 states have call successors, (0), 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 07:06:14,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13958 states to 13958 states and 20983 transitions. [2024-12-02 07:06:14,988 INFO L78 Accepts]: Start accepts. Automaton has 13958 states and 20983 transitions. Word has length 68 [2024-12-02 07:06:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:14,988 INFO L471 AbstractCegarLoop]: Abstraction has 13958 states and 20983 transitions. [2024-12-02 07:06:14,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:14,989 INFO L276 IsEmpty]: Start isEmpty. Operand 13958 states and 20983 transitions. [2024-12-02 07:06:14,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 07:06:14,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:14,991 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] [2024-12-02 07:06:14,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:06:14,991 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:14,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -264834943, now seen corresponding path program 1 times [2024-12-02 07:06:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:14,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812049454] [2024-12-02 07:06:14,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:14,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:15,041 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 07:06:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812049454] [2024-12-02 07:06:15,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812049454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:15,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202166483] [2024-12-02 07:06:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:15,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:15,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:15,043 INFO L87 Difference]: Start difference. First operand 13958 states and 20983 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:15,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:15,109 INFO L93 Difference]: Finished difference Result 25362 states and 38160 transitions. [2024-12-02 07:06:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:15,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-12-02 07:06:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:15,136 INFO L225 Difference]: With dead ends: 25362 [2024-12-02 07:06:15,136 INFO L226 Difference]: Without dead ends: 17036 [2024-12-02 07:06:15,143 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 07:06:15,144 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 148 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:15,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 454 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17036 states. [2024-12-02 07:06:15,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17036 to 16818. [2024-12-02 07:06:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16818 states, 16817 states have (on average 1.4811202949396445) internal successors, (24908), 16817 states have internal predecessors, (24908), 0 states have call successors, (0), 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 07:06:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16818 states to 16818 states and 24908 transitions. [2024-12-02 07:06:15,342 INFO L78 Accepts]: Start accepts. Automaton has 16818 states and 24908 transitions. Word has length 68 [2024-12-02 07:06:15,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:15,342 INFO L471 AbstractCegarLoop]: Abstraction has 16818 states and 24908 transitions. [2024-12-02 07:06:15,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 16818 states and 24908 transitions. [2024-12-02 07:06:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 07:06:15,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:15,344 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] [2024-12-02 07:06:15,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:06:15,345 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:15,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:15,345 INFO L85 PathProgramCache]: Analyzing trace with hash -660438559, now seen corresponding path program 1 times [2024-12-02 07:06:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:15,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540327540] [2024-12-02 07:06:15,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:15,396 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 07:06:15,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:15,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540327540] [2024-12-02 07:06:15,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540327540] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:15,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:15,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:15,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823946546] [2024-12-02 07:06:15,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:15,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:15,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:15,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:15,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:15,398 INFO L87 Difference]: Start difference. First operand 16818 states and 24908 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:15,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:15,489 INFO L93 Difference]: Finished difference Result 37671 states and 55842 transitions. [2024-12-02 07:06:15,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:15,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-12-02 07:06:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:15,527 INFO L225 Difference]: With dead ends: 37671 [2024-12-02 07:06:15,527 INFO L226 Difference]: Without dead ends: 23115 [2024-12-02 07:06:15,588 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 07:06:15,589 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 163 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:15,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23115 states. [2024-12-02 07:06:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23115 to 16687. [2024-12-02 07:06:15,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16687 states, 16686 states have (on average 1.4625434495984657) internal successors, (24404), 16686 states have internal predecessors, (24404), 0 states have call successors, (0), 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 07:06:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16687 states to 16687 states and 24404 transitions. [2024-12-02 07:06:15,763 INFO L78 Accepts]: Start accepts. Automaton has 16687 states and 24404 transitions. Word has length 68 [2024-12-02 07:06:15,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:15,763 INFO L471 AbstractCegarLoop]: Abstraction has 16687 states and 24404 transitions. [2024-12-02 07:06:15,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 16687 states and 24404 transitions. [2024-12-02 07:06:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 07:06:15,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:15,765 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] [2024-12-02 07:06:15,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:06:15,765 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:15,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1777284032, now seen corresponding path program 1 times [2024-12-02 07:06:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813658886] [2024-12-02 07:06:15,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:15,816 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 07:06:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:15,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813658886] [2024-12-02 07:06:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813658886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:15,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:15,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:15,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766391653] [2024-12-02 07:06:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:15,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:15,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:15,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:15,818 INFO L87 Difference]: Start difference. First operand 16687 states and 24404 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:15,880 INFO L93 Difference]: Finished difference Result 22883 states and 33321 transitions. [2024-12-02 07:06:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-12-02 07:06:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:15,908 INFO L225 Difference]: With dead ends: 22883 [2024-12-02 07:06:15,908 INFO L226 Difference]: Without dead ends: 17041 [2024-12-02 07:06:15,914 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 07:06:15,914 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:15,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 436 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17041 states. [2024-12-02 07:06:16,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17041 to 15375. [2024-12-02 07:06:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15375 states, 15374 states have (on average 1.432548458436321) internal successors, (22024), 15374 states have internal predecessors, (22024), 0 states have call successors, (0), 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 07:06:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15375 states to 15375 states and 22024 transitions. [2024-12-02 07:06:16,125 INFO L78 Accepts]: Start accepts. Automaton has 15375 states and 22024 transitions. Word has length 68 [2024-12-02 07:06:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:16,126 INFO L471 AbstractCegarLoop]: Abstraction has 15375 states and 22024 transitions. [2024-12-02 07:06:16,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 07:06:16,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15375 states and 22024 transitions. [2024-12-02 07:06:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 07:06:16,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:16,128 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] [2024-12-02 07:06:16,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:06:16,128 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:16,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:16,128 INFO L85 PathProgramCache]: Analyzing trace with hash -450188991, now seen corresponding path program 1 times [2024-12-02 07:06:16,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:16,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789338261] [2024-12-02 07:06:16,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:16,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:16,214 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 07:06:16,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:16,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789338261] [2024-12-02 07:06:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789338261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:16,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558658517] [2024-12-02 07:06:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:16,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:16,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:16,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:16,215 INFO L87 Difference]: Start difference. First operand 15375 states and 22024 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:16,445 INFO L93 Difference]: Finished difference Result 32728 states and 47289 transitions. [2024-12-02 07:06:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-12-02 07:06:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:16,481 INFO L225 Difference]: With dead ends: 32728 [2024-12-02 07:06:16,481 INFO L226 Difference]: Without dead ends: 26334 [2024-12-02 07:06:16,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:16,491 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1030 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:16,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1084 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:06:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26334 states. [2024-12-02 07:06:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26334 to 21734. [2024-12-02 07:06:16,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21734 states, 21733 states have (on average 1.4334882436847192) internal successors, (31154), 21733 states have internal predecessors, (31154), 0 states have call successors, (0), 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 07:06:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21734 states to 21734 states and 31154 transitions. [2024-12-02 07:06:16,866 INFO L78 Accepts]: Start accepts. Automaton has 21734 states and 31154 transitions. Word has length 69 [2024-12-02 07:06:16,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:16,866 INFO L471 AbstractCegarLoop]: Abstraction has 21734 states and 31154 transitions. [2024-12-02 07:06:16,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:16,866 INFO L276 IsEmpty]: Start isEmpty. Operand 21734 states and 31154 transitions. [2024-12-02 07:06:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 07:06:16,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:16,869 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] [2024-12-02 07:06:16,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:06:16,869 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:16,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:16,870 INFO L85 PathProgramCache]: Analyzing trace with hash 558054915, now seen corresponding path program 1 times [2024-12-02 07:06:16,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469248962] [2024-12-02 07:06:16,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:16,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:16,980 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 07:06:16,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:16,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469248962] [2024-12-02 07:06:16,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469248962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:16,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:16,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:16,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106757999] [2024-12-02 07:06:16,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:16,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:16,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:16,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:16,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:16,981 INFO L87 Difference]: Start difference. First operand 21734 states and 31154 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:17,152 INFO L93 Difference]: Finished difference Result 30900 states and 44495 transitions. [2024-12-02 07:06:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-12-02 07:06:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:17,190 INFO L225 Difference]: With dead ends: 30900 [2024-12-02 07:06:17,190 INFO L226 Difference]: Without dead ends: 29482 [2024-12-02 07:06:17,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:17,198 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 1049 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:17,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1118 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:06:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29482 states. [2024-12-02 07:06:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29482 to 23136. [2024-12-02 07:06:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23136 states, 23135 states have (on average 1.4337583747568619) internal successors, (33170), 23135 states have internal predecessors, (33170), 0 states have call successors, (0), 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 07:06:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23136 states to 23136 states and 33170 transitions. [2024-12-02 07:06:17,513 INFO L78 Accepts]: Start accepts. Automaton has 23136 states and 33170 transitions. Word has length 69 [2024-12-02 07:06:17,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:17,514 INFO L471 AbstractCegarLoop]: Abstraction has 23136 states and 33170 transitions. [2024-12-02 07:06:17,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand 23136 states and 33170 transitions. [2024-12-02 07:06:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 07:06:17,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:17,516 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, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:17,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:06:17,516 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:17,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash 362024722, now seen corresponding path program 1 times [2024-12-02 07:06:17,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:17,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398909920] [2024-12-02 07:06:17,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:17,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:17,603 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 07:06:17,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:17,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398909920] [2024-12-02 07:06:17,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398909920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:17,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:17,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:17,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976979989] [2024-12-02 07:06:17,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:17,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:17,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:17,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:17,604 INFO L87 Difference]: Start difference. First operand 23136 states and 33170 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:17,741 INFO L93 Difference]: Finished difference Result 33992 states and 48977 transitions. [2024-12-02 07:06:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-12-02 07:06:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:17,775 INFO L225 Difference]: With dead ends: 33992 [2024-12-02 07:06:17,775 INFO L226 Difference]: Without dead ends: 30846 [2024-12-02 07:06:17,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:17,785 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 964 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:17,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1266 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:17,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30846 states. [2024-12-02 07:06:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30846 to 26261. [2024-12-02 07:06:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26261 states, 26260 states have (on average 1.4340822543792842) internal successors, (37659), 26260 states have internal predecessors, (37659), 0 states have call successors, (0), 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 07:06:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26261 states to 26261 states and 37659 transitions. [2024-12-02 07:06:18,189 INFO L78 Accepts]: Start accepts. Automaton has 26261 states and 37659 transitions. Word has length 69 [2024-12-02 07:06:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:18,189 INFO L471 AbstractCegarLoop]: Abstraction has 26261 states and 37659 transitions. [2024-12-02 07:06:18,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 26261 states and 37659 transitions. [2024-12-02 07:06:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 07:06:18,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:18,193 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] [2024-12-02 07:06:18,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:06:18,193 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:18,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1608289607, now seen corresponding path program 1 times [2024-12-02 07:06:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:18,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216589303] [2024-12-02 07:06:18,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:18,318 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 07:06:18,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:18,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216589303] [2024-12-02 07:06:18,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216589303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:18,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:18,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:18,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287477252] [2024-12-02 07:06:18,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:18,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:18,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:18,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:18,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:18,320 INFO L87 Difference]: Start difference. First operand 26261 states and 37659 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:18,520 INFO L93 Difference]: Finished difference Result 44439 states and 64123 transitions. [2024-12-02 07:06:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-12-02 07:06:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:18,572 INFO L225 Difference]: With dead ends: 44439 [2024-12-02 07:06:18,572 INFO L226 Difference]: Without dead ends: 37189 [2024-12-02 07:06:18,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:18,586 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 1037 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:18,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1247 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:06:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37189 states. [2024-12-02 07:06:19,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37189 to 31796. [2024-12-02 07:06:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31796 states, 31795 states have (on average 1.434596634690989) internal successors, (45613), 31795 states have internal predecessors, (45613), 0 states have call successors, (0), 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 07:06:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31796 states to 31796 states and 45613 transitions. [2024-12-02 07:06:19,094 INFO L78 Accepts]: Start accepts. Automaton has 31796 states and 45613 transitions. Word has length 69 [2024-12-02 07:06:19,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:19,094 INFO L471 AbstractCegarLoop]: Abstraction has 31796 states and 45613 transitions. [2024-12-02 07:06:19,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 07:06:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 31796 states and 45613 transitions. [2024-12-02 07:06:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 07:06:19,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:19,097 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] [2024-12-02 07:06:19,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:06:19,097 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:19,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:19,097 INFO L85 PathProgramCache]: Analyzing trace with hash 534789540, now seen corresponding path program 1 times [2024-12-02 07:06:19,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:19,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077954191] [2024-12-02 07:06:19,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:19,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:19,137 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 07:06:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077954191] [2024-12-02 07:06:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077954191] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027057458] [2024-12-02 07:06:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:19,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:19,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:19,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:19,138 INFO L87 Difference]: Start difference. First operand 31796 states and 45613 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 07:06:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:19,280 INFO L93 Difference]: Finished difference Result 64005 states and 91471 transitions. [2024-12-02 07:06:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-12-02 07:06:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:19,309 INFO L225 Difference]: With dead ends: 64005 [2024-12-02 07:06:19,310 INFO L226 Difference]: Without dead ends: 34689 [2024-12-02 07:06:19,324 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 07:06:19,325 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 150 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:19,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 522 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34689 states. [2024-12-02 07:06:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34689 to 31691. [2024-12-02 07:06:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31691 states, 31690 states have (on average 1.3971284316819186) internal successors, (44275), 31690 states have internal predecessors, (44275), 0 states have call successors, (0), 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 07:06:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31691 states to 31691 states and 44275 transitions. [2024-12-02 07:06:19,825 INFO L78 Accepts]: Start accepts. Automaton has 31691 states and 44275 transitions. Word has length 72 [2024-12-02 07:06:19,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:19,825 INFO L471 AbstractCegarLoop]: Abstraction has 31691 states and 44275 transitions. [2024-12-02 07:06:19,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 07:06:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31691 states and 44275 transitions. [2024-12-02 07:06:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 07:06:19,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:19,829 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] [2024-12-02 07:06:19,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:06:19,829 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:19,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1186485623, now seen corresponding path program 1 times [2024-12-02 07:06:19,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:19,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143962011] [2024-12-02 07:06:19,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:19,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:19,958 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 07:06:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:19,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143962011] [2024-12-02 07:06:19,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143962011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:19,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:19,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806306627] [2024-12-02 07:06:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:19,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:19,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:19,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:19,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:19,960 INFO L87 Difference]: Start difference. First operand 31691 states and 44275 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:20,526 INFO L93 Difference]: Finished difference Result 75863 states and 105872 transitions. [2024-12-02 07:06:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:20,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-12-02 07:06:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:20,596 INFO L225 Difference]: With dead ends: 75863 [2024-12-02 07:06:20,596 INFO L226 Difference]: Without dead ends: 65633 [2024-12-02 07:06:20,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:20,716 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1694 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:20,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 455 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:06:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65633 states. [2024-12-02 07:06:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65633 to 31715. [2024-12-02 07:06:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31715 states, 31714 states have (on average 1.3970801538752602) internal successors, (44307), 31714 states have internal predecessors, (44307), 0 states have call successors, (0), 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 07:06:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31715 states to 31715 states and 44307 transitions. [2024-12-02 07:06:21,101 INFO L78 Accepts]: Start accepts. Automaton has 31715 states and 44307 transitions. Word has length 74 [2024-12-02 07:06:21,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:21,101 INFO L471 AbstractCegarLoop]: Abstraction has 31715 states and 44307 transitions. [2024-12-02 07:06:21,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 31715 states and 44307 transitions. [2024-12-02 07:06:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 07:06:21,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:21,103 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] [2024-12-02 07:06:21,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:06:21,104 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:21,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1221801007, now seen corresponding path program 1 times [2024-12-02 07:06:21,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:21,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442027411] [2024-12-02 07:06:21,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:21,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:21,233 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 07:06:21,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:21,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442027411] [2024-12-02 07:06:21,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442027411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:21,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:21,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:21,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424670493] [2024-12-02 07:06:21,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:21,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:21,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:21,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:21,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:21,235 INFO L87 Difference]: Start difference. First operand 31715 states and 44307 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:21,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:21,878 INFO L93 Difference]: Finished difference Result 94137 states and 130618 transitions. [2024-12-02 07:06:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:21,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-12-02 07:06:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:21,951 INFO L225 Difference]: With dead ends: 94137 [2024-12-02 07:06:21,952 INFO L226 Difference]: Without dead ends: 82501 [2024-12-02 07:06:21,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:21,976 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1464 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:21,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 457 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82501 states. [2024-12-02 07:06:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82501 to 31879. [2024-12-02 07:06:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31879 states, 31878 states have (on average 1.396229374490244) internal successors, (44509), 31878 states have internal predecessors, (44509), 0 states have call successors, (0), 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 07:06:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31879 states to 31879 states and 44509 transitions. [2024-12-02 07:06:22,463 INFO L78 Accepts]: Start accepts. Automaton has 31879 states and 44509 transitions. Word has length 74 [2024-12-02 07:06:22,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:22,463 INFO L471 AbstractCegarLoop]: Abstraction has 31879 states and 44509 transitions. [2024-12-02 07:06:22,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:22,463 INFO L276 IsEmpty]: Start isEmpty. Operand 31879 states and 44509 transitions. [2024-12-02 07:06:22,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 07:06:22,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:22,467 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] [2024-12-02 07:06:22,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:06:22,467 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:22,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash 64576706, now seen corresponding path program 1 times [2024-12-02 07:06:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:22,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620115998] [2024-12-02 07:06:22,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:22,618 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 07:06:22,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:22,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620115998] [2024-12-02 07:06:22,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620115998] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:22,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:22,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:22,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990397610] [2024-12-02 07:06:22,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:22,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:22,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:22,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:22,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:22,619 INFO L87 Difference]: Start difference. First operand 31879 states and 44509 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:23,124 INFO L93 Difference]: Finished difference Result 74785 states and 103427 transitions. [2024-12-02 07:06:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-12-02 07:06:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:23,173 INFO L225 Difference]: With dead ends: 74785 [2024-12-02 07:06:23,173 INFO L226 Difference]: Without dead ends: 68934 [2024-12-02 07:06:23,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:23,185 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1364 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:23,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 425 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:06:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68934 states. [2024-12-02 07:06:23,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68934 to 32140. [2024-12-02 07:06:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32140 states, 32139 states have (on average 1.3945673480817697) internal successors, (44820), 32139 states have internal predecessors, (44820), 0 states have call successors, (0), 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 07:06:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32140 states to 32140 states and 44820 transitions. [2024-12-02 07:06:23,596 INFO L78 Accepts]: Start accepts. Automaton has 32140 states and 44820 transitions. Word has length 74 [2024-12-02 07:06:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:23,596 INFO L471 AbstractCegarLoop]: Abstraction has 32140 states and 44820 transitions. [2024-12-02 07:06:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 07:06:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 32140 states and 44820 transitions. [2024-12-02 07:06:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 07:06:23,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:23,599 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] [2024-12-02 07:06:23,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:06:23,599 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:23,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:23,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1759632225, now seen corresponding path program 1 times [2024-12-02 07:06:23,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003008076] [2024-12-02 07:06:23,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:23,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:23,708 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 07:06:23,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:23,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003008076] [2024-12-02 07:06:23,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003008076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:23,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:23,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:23,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874940226] [2024-12-02 07:06:23,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:23,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:23,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:23,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:23,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:23,709 INFO L87 Difference]: Start difference. First operand 32140 states and 44820 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 07:06:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:24,056 INFO L93 Difference]: Finished difference Result 81139 states and 112527 transitions. [2024-12-02 07:06:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:24,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-12-02 07:06:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:24,101 INFO L225 Difference]: With dead ends: 81139 [2024-12-02 07:06:24,101 INFO L226 Difference]: Without dead ends: 60054 [2024-12-02 07:06:24,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:24,117 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1178 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:24,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 388 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:24,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60054 states. [2024-12-02 07:06:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60054 to 32190. [2024-12-02 07:06:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32190 states, 32189 states have (on average 1.3942651216254) internal successors, (44880), 32189 states have internal predecessors, (44880), 0 states have call successors, (0), 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 07:06:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32190 states to 32190 states and 44880 transitions. [2024-12-02 07:06:24,670 INFO L78 Accepts]: Start accepts. Automaton has 32190 states and 44880 transitions. Word has length 75 [2024-12-02 07:06:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:24,670 INFO L471 AbstractCegarLoop]: Abstraction has 32190 states and 44880 transitions. [2024-12-02 07:06:24,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 07:06:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 32190 states and 44880 transitions. [2024-12-02 07:06:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 07:06:24,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:24,674 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] [2024-12-02 07:06:24,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:06:24,675 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:24,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1742464187, now seen corresponding path program 1 times [2024-12-02 07:06:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:24,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629432487] [2024-12-02 07:06:24,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:24,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:25,361 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 07:06:25,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:25,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629432487] [2024-12-02 07:06:25,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629432487] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:25,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:25,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:06:25,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032278983] [2024-12-02 07:06:25,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:25,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:06:25,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:25,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:06:25,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:25,363 INFO L87 Difference]: Start difference. First operand 32190 states and 44880 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 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 07:06:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:26,295 INFO L93 Difference]: Finished difference Result 57902 states and 80767 transitions. [2024-12-02 07:06:26,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:06:26,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-12-02 07:06:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:26,345 INFO L225 Difference]: With dead ends: 57902 [2024-12-02 07:06:26,345 INFO L226 Difference]: Without dead ends: 54098 [2024-12-02 07:06:26,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:06:26,358 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 1068 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:26,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2570 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54098 states. [2024-12-02 07:06:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54098 to 32206. [2024-12-02 07:06:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32206 states, 32205 states have (on average 1.3937897841950009) internal successors, (44887), 32205 states have internal predecessors, (44887), 0 states have call successors, (0), 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 07:06:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32206 states to 32206 states and 44887 transitions. [2024-12-02 07:06:26,906 INFO L78 Accepts]: Start accepts. Automaton has 32206 states and 44887 transitions. Word has length 76 [2024-12-02 07:06:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 32206 states and 44887 transitions. [2024-12-02 07:06:26,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 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 07:06:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 32206 states and 44887 transitions. [2024-12-02 07:06:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 07:06:26,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:26,911 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] [2024-12-02 07:06:26,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:06:26,912 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:26,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:26,912 INFO L85 PathProgramCache]: Analyzing trace with hash 186689387, now seen corresponding path program 1 times [2024-12-02 07:06:26,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:26,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074830595] [2024-12-02 07:06:26,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:26,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:27,551 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 07:06:27,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:27,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074830595] [2024-12-02 07:06:27,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074830595] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:27,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:27,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:06:27,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025851279] [2024-12-02 07:06:27,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:27,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:06:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:27,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:06:27,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:27,553 INFO L87 Difference]: Start difference. First operand 32206 states and 44887 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 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 07:06:28,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:28,347 INFO L93 Difference]: Finished difference Result 72326 states and 101292 transitions. [2024-12-02 07:06:28,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:06:28,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-12-02 07:06:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:28,406 INFO L225 Difference]: With dead ends: 72326 [2024-12-02 07:06:28,406 INFO L226 Difference]: Without dead ends: 59423 [2024-12-02 07:06:28,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:06:28,424 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 1157 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:28,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1889 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59423 states. [2024-12-02 07:06:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59423 to 32021. [2024-12-02 07:06:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32021 states, 32020 states have (on average 1.3944722048719551) internal successors, (44651), 32020 states have internal predecessors, (44651), 0 states have call successors, (0), 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 07:06:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32021 states to 32021 states and 44651 transitions. [2024-12-02 07:06:29,026 INFO L78 Accepts]: Start accepts. Automaton has 32021 states and 44651 transitions. Word has length 77 [2024-12-02 07:06:29,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:29,026 INFO L471 AbstractCegarLoop]: Abstraction has 32021 states and 44651 transitions. [2024-12-02 07:06:29,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 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 07:06:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 32021 states and 44651 transitions. [2024-12-02 07:06:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 07:06:29,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:29,031 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] [2024-12-02 07:06:29,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:06:29,031 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:29,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:29,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1944918895, now seen corresponding path program 1 times [2024-12-02 07:06:29,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:29,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920605834] [2024-12-02 07:06:29,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:29,095 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 07:06:29,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:29,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920605834] [2024-12-02 07:06:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920605834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:29,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:29,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184994175] [2024-12-02 07:06:29,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:29,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:29,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:29,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:29,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:29,096 INFO L87 Difference]: Start difference. First operand 32021 states and 44651 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 07:06:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:29,332 INFO L93 Difference]: Finished difference Result 67270 states and 93924 transitions. [2024-12-02 07:06:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-12-02 07:06:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:29,391 INFO L225 Difference]: With dead ends: 67270 [2024-12-02 07:06:29,391 INFO L226 Difference]: Without dead ends: 45766 [2024-12-02 07:06:29,410 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 07:06:29,410 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 174 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:29,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 407 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45766 states. [2024-12-02 07:06:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45766 to 45596. [2024-12-02 07:06:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45596 states, 45595 states have (on average 1.3984428117118104) internal successors, (63762), 45595 states have internal predecessors, (63762), 0 states have call successors, (0), 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 07:06:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45596 states to 45596 states and 63762 transitions. [2024-12-02 07:06:29,955 INFO L78 Accepts]: Start accepts. Automaton has 45596 states and 63762 transitions. Word has length 77 [2024-12-02 07:06:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:29,955 INFO L471 AbstractCegarLoop]: Abstraction has 45596 states and 63762 transitions. [2024-12-02 07:06:29,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 07:06:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 45596 states and 63762 transitions. [2024-12-02 07:06:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 07:06:29,959 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:29,959 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] [2024-12-02 07:06:29,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:06:29,960 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:29,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash 101278650, now seen corresponding path program 1 times [2024-12-02 07:06:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:29,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634865179] [2024-12-02 07:06:29,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:29,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:30,243 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 07:06:30,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634865179] [2024-12-02 07:06:30,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634865179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:30,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:30,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:06:30,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105472992] [2024-12-02 07:06:30,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:30,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:30,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:30,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:30,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:30,244 INFO L87 Difference]: Start difference. First operand 45596 states and 63762 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 07:06:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:30,992 INFO L93 Difference]: Finished difference Result 131217 states and 183661 transitions. [2024-12-02 07:06:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:06:30,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-12-02 07:06:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:31,069 INFO L225 Difference]: With dead ends: 131217 [2024-12-02 07:06:31,069 INFO L226 Difference]: Without dead ends: 86536 [2024-12-02 07:06:31,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:06:31,098 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1052 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:31,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1026 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:31,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86536 states. [2024-12-02 07:06:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86536 to 45397. [2024-12-02 07:06:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45397 states, 45396 states have (on average 1.398691514670896) internal successors, (63495), 45396 states have internal predecessors, (63495), 0 states have call successors, (0), 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 07:06:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45397 states to 45397 states and 63495 transitions. [2024-12-02 07:06:31,657 INFO L78 Accepts]: Start accepts. Automaton has 45397 states and 63495 transitions. Word has length 80 [2024-12-02 07:06:31,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:31,658 INFO L471 AbstractCegarLoop]: Abstraction has 45397 states and 63495 transitions. [2024-12-02 07:06:31,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 07:06:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 45397 states and 63495 transitions. [2024-12-02 07:06:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 07:06:31,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:31,661 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] [2024-12-02 07:06:31,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:06:31,661 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:31,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:31,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1600732747, now seen corresponding path program 1 times [2024-12-02 07:06:31,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:31,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279312324] [2024-12-02 07:06:31,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:31,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:31,713 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 07:06:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279312324] [2024-12-02 07:06:31,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279312324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:31,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286863698] [2024-12-02 07:06:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:31,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:31,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:31,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:31,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:31,714 INFO L87 Difference]: Start difference. First operand 45397 states and 63495 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 07:06:31,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:31,859 INFO L93 Difference]: Finished difference Result 66467 states and 92763 transitions. [2024-12-02 07:06:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:31,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 07:06:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:31,890 INFO L225 Difference]: With dead ends: 66467 [2024-12-02 07:06:31,890 INFO L226 Difference]: Without dead ends: 40545 [2024-12-02 07:06:31,904 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 07:06:31,904 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 143 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:31,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 487 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:31,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40545 states. [2024-12-02 07:06:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40545 to 40543. [2024-12-02 07:06:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40543 states, 40542 states have (on average 1.381801588476148) internal successors, (56021), 40542 states have internal predecessors, (56021), 0 states have call successors, (0), 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 07:06:32,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40543 states to 40543 states and 56021 transitions. [2024-12-02 07:06:32,236 INFO L78 Accepts]: Start accepts. Automaton has 40543 states and 56021 transitions. Word has length 81 [2024-12-02 07:06:32,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:32,237 INFO L471 AbstractCegarLoop]: Abstraction has 40543 states and 56021 transitions. [2024-12-02 07:06:32,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 07:06:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 40543 states and 56021 transitions. [2024-12-02 07:06:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 07:06:32,240 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:32,240 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] [2024-12-02 07:06:32,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:06:32,240 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:32,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1688072129, now seen corresponding path program 1 times [2024-12-02 07:06:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:32,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438417323] [2024-12-02 07:06:32,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:32,817 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 07:06:32,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:32,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438417323] [2024-12-02 07:06:32,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438417323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:32,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:32,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:06:32,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635846276] [2024-12-02 07:06:32,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:32,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:06:32,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:32,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:06:32,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:32,818 INFO L87 Difference]: Start difference. First operand 40543 states and 56021 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 07:06:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:33,664 INFO L93 Difference]: Finished difference Result 64651 states and 89270 transitions. [2024-12-02 07:06:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:06:33,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 07:06:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:33,728 INFO L225 Difference]: With dead ends: 64651 [2024-12-02 07:06:33,729 INFO L226 Difference]: Without dead ends: 59789 [2024-12-02 07:06:33,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:06:33,744 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 1294 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:33,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1812 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:06:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59789 states. [2024-12-02 07:06:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59789 to 40507. [2024-12-02 07:06:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40507 states, 40506 states have (on average 1.3819187280896656) internal successors, (55976), 40506 states have internal predecessors, (55976), 0 states have call successors, (0), 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 07:06:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40507 states to 40507 states and 55976 transitions. [2024-12-02 07:06:34,230 INFO L78 Accepts]: Start accepts. Automaton has 40507 states and 55976 transitions. Word has length 82 [2024-12-02 07:06:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:34,230 INFO L471 AbstractCegarLoop]: Abstraction has 40507 states and 55976 transitions. [2024-12-02 07:06:34,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 07:06:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 40507 states and 55976 transitions. [2024-12-02 07:06:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 07:06:34,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:34,234 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] [2024-12-02 07:06:34,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:06:34,234 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1800307277, now seen corresponding path program 1 times [2024-12-02 07:06:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153685717] [2024-12-02 07:06:34,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:34,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:34,269 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 07:06:34,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153685717] [2024-12-02 07:06:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153685717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:34,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:34,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:34,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158657137] [2024-12-02 07:06:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:34,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:34,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:34,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:34,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:34,270 INFO L87 Difference]: Start difference. First operand 40507 states and 55976 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 07:06:34,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:34,437 INFO L93 Difference]: Finished difference Result 79622 states and 110192 transitions. [2024-12-02 07:06:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:34,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 07:06:34,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:34,489 INFO L225 Difference]: With dead ends: 79622 [2024-12-02 07:06:34,490 INFO L226 Difference]: Without dead ends: 55397 [2024-12-02 07:06:34,506 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 07:06:34,507 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 174 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:34,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 346 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55397 states. [2024-12-02 07:06:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55397 to 39321. [2024-12-02 07:06:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39321 states, 39320 states have (on average 1.3802136317395728) internal successors, (54270), 39320 states have internal predecessors, (54270), 0 states have call successors, (0), 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 07:06:34,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39321 states to 39321 states and 54270 transitions. [2024-12-02 07:06:34,910 INFO L78 Accepts]: Start accepts. Automaton has 39321 states and 54270 transitions. Word has length 82 [2024-12-02 07:06:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:34,910 INFO L471 AbstractCegarLoop]: Abstraction has 39321 states and 54270 transitions. [2024-12-02 07:06:34,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 07:06:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 39321 states and 54270 transitions. [2024-12-02 07:06:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 07:06:34,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:34,917 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:06:34,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:06:34,918 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:34,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:34,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1641215798, now seen corresponding path program 1 times [2024-12-02 07:06:34,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:34,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555602852] [2024-12-02 07:06:34,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:34,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:34,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:34,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555602852] [2024-12-02 07:06:34,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555602852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:34,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:34,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096484886] [2024-12-02 07:06:34,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:34,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:34,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:34,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:34,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:34,986 INFO L87 Difference]: Start difference. First operand 39321 states and 54270 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 07:06:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:35,146 INFO L93 Difference]: Finished difference Result 78968 states and 109858 transitions. [2024-12-02 07:06:35,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:35,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-12-02 07:06:35,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:35,228 INFO L225 Difference]: With dead ends: 78968 [2024-12-02 07:06:35,228 INFO L226 Difference]: Without dead ends: 58169 [2024-12-02 07:06:35,251 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 07:06:35,252 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 115 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 488 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 07:06:35,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 488 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:35,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58169 states. [2024-12-02 07:06:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58169 to 56312. [2024-12-02 07:06:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56312 states, 56311 states have (on average 1.3791266360036227) internal successors, (77660), 56311 states have internal predecessors, (77660), 0 states have call successors, (0), 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 07:06:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56312 states to 56312 states and 77660 transitions. [2024-12-02 07:06:35,815 INFO L78 Accepts]: Start accepts. Automaton has 56312 states and 77660 transitions. Word has length 90 [2024-12-02 07:06:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:35,815 INFO L471 AbstractCegarLoop]: Abstraction has 56312 states and 77660 transitions. [2024-12-02 07:06:35,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 07:06:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 56312 states and 77660 transitions. [2024-12-02 07:06:35,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 07:06:35,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:35,821 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:06:35,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:06:35,821 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:35,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:35,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1379057684, now seen corresponding path program 1 times [2024-12-02 07:06:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:35,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578505402] [2024-12-02 07:06:35,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:35,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:35,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578505402] [2024-12-02 07:06:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578505402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:35,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:35,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127969835] [2024-12-02 07:06:35,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:35,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:35,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:35,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:35,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:35,903 INFO L87 Difference]: Start difference. First operand 56312 states and 77660 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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 07:06:36,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:36,371 INFO L93 Difference]: Finished difference Result 115113 states and 159262 transitions. [2024-12-02 07:06:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:06:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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 07:06:36,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:36,442 INFO L225 Difference]: With dead ends: 115113 [2024-12-02 07:06:36,442 INFO L226 Difference]: Without dead ends: 92610 [2024-12-02 07:06:36,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:36,464 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1577 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:36,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 441 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92610 states. [2024-12-02 07:06:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92610 to 56824. [2024-12-02 07:06:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56824 states, 56823 states have (on average 1.3776287770797035) internal successors, (78281), 56823 states have internal predecessors, (78281), 0 states have call successors, (0), 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 07:06:37,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56824 states to 56824 states and 78281 transitions. [2024-12-02 07:06:37,136 INFO L78 Accepts]: Start accepts. Automaton has 56824 states and 78281 transitions. Word has length 95 [2024-12-02 07:06:37,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:37,136 INFO L471 AbstractCegarLoop]: Abstraction has 56824 states and 78281 transitions. [2024-12-02 07:06:37,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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 07:06:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 56824 states and 78281 transitions. [2024-12-02 07:06:37,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 07:06:37,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:37,140 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:06:37,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:06:37,140 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:37,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash 256876660, now seen corresponding path program 1 times [2024-12-02 07:06:37,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:37,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290524208] [2024-12-02 07:06:37,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:37,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290524208] [2024-12-02 07:06:37,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290524208] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:37,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774701697] [2024-12-02 07:06:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:37,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:37,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:37,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:37,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:37,176 INFO L87 Difference]: Start difference. First operand 56824 states and 78281 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 07:06:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:37,292 INFO L93 Difference]: Finished difference Result 71192 states and 97681 transitions. [2024-12-02 07:06:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:37,292 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 07:06:37,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:37,328 INFO L225 Difference]: With dead ends: 71192 [2024-12-02 07:06:37,328 INFO L226 Difference]: Without dead ends: 45376 [2024-12-02 07:06:37,343 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 07:06:37,343 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 142 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:37,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 571 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45376 states. [2024-12-02 07:06:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45376 to 45374. [2024-12-02 07:06:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45374 states, 45373 states have (on average 1.3575033610296872) internal successors, (61594), 45373 states have internal predecessors, (61594), 0 states have call successors, (0), 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 07:06:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45374 states to 45374 states and 61594 transitions. [2024-12-02 07:06:37,691 INFO L78 Accepts]: Start accepts. Automaton has 45374 states and 61594 transitions. Word has length 95 [2024-12-02 07:06:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:37,691 INFO L471 AbstractCegarLoop]: Abstraction has 45374 states and 61594 transitions. [2024-12-02 07:06:37,691 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 07:06:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 45374 states and 61594 transitions. [2024-12-02 07:06:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 07:06:37,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:37,694 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:06:37,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:06:37,694 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:37,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash -628052237, now seen corresponding path program 1 times [2024-12-02 07:06:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142733566] [2024-12-02 07:06:37,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:37,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:37,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:37,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142733566] [2024-12-02 07:06:37,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142733566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:37,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:37,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:37,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152619475] [2024-12-02 07:06:37,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:37,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:37,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:37,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:37,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:37,782 INFO L87 Difference]: Start difference. First operand 45374 states and 61594 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 07:06:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:38,191 INFO L93 Difference]: Finished difference Result 145485 states and 199564 transitions. [2024-12-02 07:06:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:06:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-12-02 07:06:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:38,281 INFO L225 Difference]: With dead ends: 145485 [2024-12-02 07:06:38,281 INFO L226 Difference]: Without dead ends: 112120 [2024-12-02 07:06:38,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:38,310 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1400 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:38,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 441 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112120 states. [2024-12-02 07:06:38,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112120 to 63722. [2024-12-02 07:06:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63722 states, 63721 states have (on average 1.3747430203543574) internal successors, (87600), 63721 states have internal predecessors, (87600), 0 states have call successors, (0), 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 07:06:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63722 states to 63722 states and 87600 transitions. [2024-12-02 07:06:39,071 INFO L78 Accepts]: Start accepts. Automaton has 63722 states and 87600 transitions. Word has length 96 [2024-12-02 07:06:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:39,072 INFO L471 AbstractCegarLoop]: Abstraction has 63722 states and 87600 transitions. [2024-12-02 07:06:39,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 07:06:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 63722 states and 87600 transitions. [2024-12-02 07:06:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 07:06:39,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:39,076 INFO L218 NwaCegarLoop]: trace histogram [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 07:06:39,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:06:39,076 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:39,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1827343764, now seen corresponding path program 1 times [2024-12-02 07:06:39,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:39,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032864734] [2024-12-02 07:06:39,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:39,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:39,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032864734] [2024-12-02 07:06:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032864734] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:39,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:39,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678884728] [2024-12-02 07:06:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:39,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:39,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:39,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:39,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:39,181 INFO L87 Difference]: Start difference. First operand 63722 states and 87600 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 07:06:39,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:39,792 INFO L93 Difference]: Finished difference Result 170955 states and 235849 transitions. [2024-12-02 07:06:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:06:39,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-12-02 07:06:39,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:39,931 INFO L225 Difference]: With dead ends: 170955 [2024-12-02 07:06:39,931 INFO L226 Difference]: Without dead ends: 142484 [2024-12-02 07:06:39,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:39,965 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1297 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:39,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 411 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:06:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142484 states. [2024-12-02 07:06:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142484 to 94484. [2024-12-02 07:06:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94484 states, 94483 states have (on average 1.375422033593345) internal successors, (129954), 94483 states have internal predecessors, (129954), 0 states have call successors, (0), 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 07:06:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94484 states to 94484 states and 129954 transitions. [2024-12-02 07:06:41,046 INFO L78 Accepts]: Start accepts. Automaton has 94484 states and 129954 transitions. Word has length 98 [2024-12-02 07:06:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:41,046 INFO L471 AbstractCegarLoop]: Abstraction has 94484 states and 129954 transitions. [2024-12-02 07:06:41,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 07:06:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 94484 states and 129954 transitions. [2024-12-02 07:06:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 07:06:41,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:41,056 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:06:41,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 07:06:41,057 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:41,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 57149073, now seen corresponding path program 1 times [2024-12-02 07:06:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:41,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829342496] [2024-12-02 07:06:41,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:41,128 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 07:06:41,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:41,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829342496] [2024-12-02 07:06:41,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829342496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:41,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:41,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:41,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983109351] [2024-12-02 07:06:41,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:41,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:41,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:41,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:41,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:41,129 INFO L87 Difference]: Start difference. First operand 94484 states and 129954 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 07:06:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:41,543 INFO L93 Difference]: Finished difference Result 226062 states and 309272 transitions. [2024-12-02 07:06:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:41,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 110 [2024-12-02 07:06:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:41,669 INFO L225 Difference]: With dead ends: 226062 [2024-12-02 07:06:41,669 INFO L226 Difference]: Without dead ends: 132808 [2024-12-02 07:06:41,717 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 07:06:41,717 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 108 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 475 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 07:06:41,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 475 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132808 states. [2024-12-02 07:06:42,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132808 to 127546. [2024-12-02 07:06:42,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127546 states, 127545 states have (on average 1.3565957113175742) internal successors, (173027), 127545 states have internal predecessors, (173027), 0 states have call successors, (0), 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 07:06:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127546 states to 127546 states and 173027 transitions. [2024-12-02 07:06:43,080 INFO L78 Accepts]: Start accepts. Automaton has 127546 states and 173027 transitions. Word has length 110 [2024-12-02 07:06:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:43,080 INFO L471 AbstractCegarLoop]: Abstraction has 127546 states and 173027 transitions. [2024-12-02 07:06:43,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 07:06:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 127546 states and 173027 transitions. [2024-12-02 07:06:43,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 07:06:43,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:43,092 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:06:43,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 07:06:43,092 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:43,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:43,093 INFO L85 PathProgramCache]: Analyzing trace with hash -848560941, now seen corresponding path program 1 times [2024-12-02 07:06:43,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:43,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920892567] [2024-12-02 07:06:43,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:43,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:06:43,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920892567] [2024-12-02 07:06:43,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920892567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:43,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:43,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:43,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045991200] [2024-12-02 07:06:43,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:43,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:43,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:43,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:43,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:43,166 INFO L87 Difference]: Start difference. First operand 127546 states and 173027 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 07:06:43,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:43,737 INFO L93 Difference]: Finished difference Result 294216 states and 396651 transitions. [2024-12-02 07:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:43,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 111 [2024-12-02 07:06:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:44,254 INFO L225 Difference]: With dead ends: 294216 [2024-12-02 07:06:44,254 INFO L226 Difference]: Without dead ends: 167788 [2024-12-02 07:06:44,290 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 07:06:44,290 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 98 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 467 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 07:06:44,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167788 states. [2024-12-02 07:06:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167788 to 158360. [2024-12-02 07:06:46,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158360 states, 158359 states have (on average 1.3307484891922783) internal successors, (210736), 158359 states have internal predecessors, (210736), 0 states have call successors, (0), 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 07:06:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158360 states to 158360 states and 210736 transitions. [2024-12-02 07:06:46,219 INFO L78 Accepts]: Start accepts. Automaton has 158360 states and 210736 transitions. Word has length 111 [2024-12-02 07:06:46,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:46,219 INFO L471 AbstractCegarLoop]: Abstraction has 158360 states and 210736 transitions. [2024-12-02 07:06:46,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 07:06:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 158360 states and 210736 transitions. [2024-12-02 07:06:46,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 07:06:46,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:46,227 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:06:46,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 07:06:46,227 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1229706858, now seen corresponding path program 1 times [2024-12-02 07:06:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198475032] [2024-12-02 07:06:46,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:46,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 07:06:46,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:46,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198475032] [2024-12-02 07:06:46,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198475032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:46,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:46,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818137163] [2024-12-02 07:06:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:46,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:46,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:46,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:46,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:46,303 INFO L87 Difference]: Start difference. First operand 158360 states and 210736 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 07:06:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:47,568 INFO L93 Difference]: Finished difference Result 429263 states and 571369 transitions. [2024-12-02 07:06:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 112 [2024-12-02 07:06:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:47,886 INFO L225 Difference]: With dead ends: 429263 [2024-12-02 07:06:47,887 INFO L226 Difference]: Without dead ends: 261056 [2024-12-02 07:06:47,934 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 07:06:47,934 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 87 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 460 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 07:06:47,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 460 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:48,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261056 states. [2024-12-02 07:06:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261056 to 231394. [2024-12-02 07:06:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231394 states, 231393 states have (on average 1.3211851698193118) internal successors, (305713), 231393 states have internal predecessors, (305713), 0 states have call successors, (0), 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 07:06:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231394 states to 231394 states and 305713 transitions. [2024-12-02 07:06:51,098 INFO L78 Accepts]: Start accepts. Automaton has 231394 states and 305713 transitions. Word has length 112 [2024-12-02 07:06:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:51,099 INFO L471 AbstractCegarLoop]: Abstraction has 231394 states and 305713 transitions. [2024-12-02 07:06:51,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 07:06:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 231394 states and 305713 transitions. [2024-12-02 07:06:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:06:51,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:51,110 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:06:51,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 07:06:51,110 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:51,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash 665223272, now seen corresponding path program 1 times [2024-12-02 07:06:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644668538] [2024-12-02 07:06:51,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644668538] [2024-12-02 07:06:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644668538] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:06:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163226676] [2024-12-02 07:06:51,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:51,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:51,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:51,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:06:51,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:06:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:51,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 07:06:51,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:53,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:06:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:54,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163226676] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:06:54,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:06:54,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 31 [2024-12-02 07:06:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905741454] [2024-12-02 07:06:54,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:06:54,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 07:06:54,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:54,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 07:06:54,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:06:54,444 INFO L87 Difference]: Start difference. First operand 231394 states and 305713 transitions. Second operand has 32 states, 32 states have (on average 9.3125) internal successors, (298), 31 states have internal predecessors, (298), 0 states have call successors, (0), 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 07:07:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:09,014 INFO L93 Difference]: Finished difference Result 1209433 states and 1577750 transitions. [2024-12-02 07:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2024-12-02 07:07:09,014 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.3125) internal successors, (298), 31 states have internal predecessors, (298), 0 states have call successors, (0), 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 115 [2024-12-02 07:07:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:10,399 INFO L225 Difference]: With dead ends: 1209433 [2024-12-02 07:07:10,399 INFO L226 Difference]: Without dead ends: 1116441 [2024-12-02 07:07:10,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12595 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=6090, Invalid=27216, Unknown=0, NotChecked=0, Total=33306 [2024-12-02 07:07:10,564 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 9098 mSDsluCounter, 7373 mSDsCounter, 0 mSdLazyCounter, 6766 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9098 SdHoareTripleChecker+Valid, 7847 SdHoareTripleChecker+Invalid, 6877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 6766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:10,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9098 Valid, 7847 Invalid, 6877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 6766 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 07:07:11,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116441 states. [2024-12-02 07:07:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116441 to 367498. [2024-12-02 07:07:17,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367498 states, 367497 states have (on average 1.318206679238198) internal successors, (484437), 367497 states have internal predecessors, (484437), 0 states have call successors, (0), 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 07:07:18,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367498 states to 367498 states and 484437 transitions. [2024-12-02 07:07:18,444 INFO L78 Accepts]: Start accepts. Automaton has 367498 states and 484437 transitions. Word has length 115 [2024-12-02 07:07:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:18,444 INFO L471 AbstractCegarLoop]: Abstraction has 367498 states and 484437 transitions. [2024-12-02 07:07:18,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.3125) internal successors, (298), 31 states have internal predecessors, (298), 0 states have call successors, (0), 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 07:07:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 367498 states and 484437 transitions. [2024-12-02 07:07:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:07:18,457 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:18,457 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:07:18,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:07:18,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 07:07:18,658 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:18,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash -135623234, now seen corresponding path program 1 times [2024-12-02 07:07:18,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:18,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598801815] [2024-12-02 07:07:18,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:18,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598801815] [2024-12-02 07:07:18,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598801815] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112428162] [2024-12-02 07:07:18,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:18,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:18,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:18,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:18,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:07:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:19,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 07:07:19,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:19,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:20,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112428162] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:07:20,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:07:20,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 25 [2024-12-02 07:07:20,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674516024] [2024-12-02 07:07:20,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:07:20,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 07:07:20,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:20,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 07:07:20,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:07:20,485 INFO L87 Difference]: Start difference. First operand 367498 states and 484437 transitions. Second operand has 25 states, 25 states have (on average 11.76) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 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 07:07:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:25,559 INFO L93 Difference]: Finished difference Result 1465661 states and 1923797 transitions. [2024-12-02 07:07:25,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-02 07:07:25,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.76) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 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 115 [2024-12-02 07:07:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:27,240 INFO L225 Difference]: With dead ends: 1465661 [2024-12-02 07:07:27,241 INFO L226 Difference]: Without dead ends: 1161009 [2024-12-02 07:07:27,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=796, Invalid=2864, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 07:07:27,383 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 1798 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:27,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1798 Valid, 2628 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:07:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161009 states. [2024-12-02 07:07:35,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161009 to 580145. [2024-12-02 07:07:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580145 states, 580144 states have (on average 1.3189863206376349) internal successors, (765202), 580144 states have internal predecessors, (765202), 0 states have call successors, (0), 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 07:07:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580145 states to 580145 states and 765202 transitions. [2024-12-02 07:07:37,648 INFO L78 Accepts]: Start accepts. Automaton has 580145 states and 765202 transitions. Word has length 115 [2024-12-02 07:07:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:37,648 INFO L471 AbstractCegarLoop]: Abstraction has 580145 states and 765202 transitions. [2024-12-02 07:07:37,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.76) internal successors, (294), 25 states have internal predecessors, (294), 0 states have call successors, (0), 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 07:07:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 580145 states and 765202 transitions. [2024-12-02 07:07:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:07:37,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:37,659 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:07:37,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:07:37,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 07:07:37,859 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:37,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:37,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1561355982, now seen corresponding path program 1 times [2024-12-02 07:07:37,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:37,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768437322] [2024-12-02 07:07:37,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:37,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:38,063 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:38,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:38,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768437322] [2024-12-02 07:07:38,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768437322] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:38,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791912687] [2024-12-02 07:07:38,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:38,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:38,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:38,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:38,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:07:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:38,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 07:07:38,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:39,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:07:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791912687] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:07:41,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:07:41,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 31 [2024-12-02 07:07:41,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164501332] [2024-12-02 07:07:41,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:07:41,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 07:07:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:41,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 07:07:41,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:07:41,400 INFO L87 Difference]: Start difference. First operand 580145 states and 765202 transitions. Second operand has 32 states, 32 states have (on average 9.59375) internal successors, (307), 31 states have internal predecessors, (307), 0 states have call successors, (0), 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 07:07:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:57,057 INFO L93 Difference]: Finished difference Result 2476810 states and 3236881 transitions. [2024-12-02 07:07:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2024-12-02 07:07:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.59375) internal successors, (307), 31 states have internal predecessors, (307), 0 states have call successors, (0), 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 115 [2024-12-02 07:07:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:59,799 INFO L225 Difference]: With dead ends: 2476810 [2024-12-02 07:07:59,799 INFO L226 Difference]: Without dead ends: 1966731 [2024-12-02 07:08:00,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12747 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=6143, Invalid=27529, Unknown=0, NotChecked=0, Total=33672 [2024-12-02 07:08:00,432 INFO L435 NwaCegarLoop]: 417 mSDtfsCounter, 5495 mSDsluCounter, 5650 mSDsCounter, 0 mSdLazyCounter, 5806 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5495 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 5911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 5806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:00,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5495 Valid, 6067 Invalid, 5911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 5806 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 07:08:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966731 states. [2024-12-02 07:08:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966731 to 704566. [2024-12-02 07:08:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704566 states, 704565 states have (on average 1.3169828191863064) internal successors, (927900), 704565 states have internal predecessors, (927900), 0 states have call successors, (0), 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 07:08:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704566 states to 704566 states and 927900 transitions. [2024-12-02 07:08:13,954 INFO L78 Accepts]: Start accepts. Automaton has 704566 states and 927900 transitions. Word has length 115 [2024-12-02 07:08:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:13,954 INFO L471 AbstractCegarLoop]: Abstraction has 704566 states and 927900 transitions. [2024-12-02 07:08:13,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.59375) internal successors, (307), 31 states have internal predecessors, (307), 0 states have call successors, (0), 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 07:08:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 704566 states and 927900 transitions. [2024-12-02 07:08:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 07:08:14,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:14,300 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:08:14,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:08:14,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:14,500 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:08:14,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1816449781, now seen corresponding path program 1 times [2024-12-02 07:08:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:08:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940751179] [2024-12-02 07:08:14,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:08:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:08:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940751179] [2024-12-02 07:08:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940751179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:08:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:08:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:08:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315841370] [2024-12-02 07:08:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:08:14,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:08:14,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:08:14,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:08:14,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:08:14,563 INFO L87 Difference]: Start difference. First operand 704566 states and 927900 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 07:08:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:17,732 INFO L93 Difference]: Finished difference Result 1362195 states and 1789885 transitions. [2024-12-02 07:08:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:08:17,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-12-02 07:08:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:18,469 INFO L225 Difference]: With dead ends: 1362195 [2024-12-02 07:08:18,470 INFO L226 Difference]: Without dead ends: 659116 [2024-12-02 07:08:19,197 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 07:08:19,197 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 120 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:19,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 424 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:08:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659116 states. [2024-12-02 07:08:24,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659116 to 635279. [2024-12-02 07:08:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635279 states, 635278 states have (on average 1.2912347035471086) internal successors, (820293), 635278 states have internal predecessors, (820293), 0 states have call successors, (0), 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 07:08:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635279 states to 635279 states and 820293 transitions. [2024-12-02 07:08:26,095 INFO L78 Accepts]: Start accepts. Automaton has 635279 states and 820293 transitions. Word has length 116 [2024-12-02 07:08:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:26,096 INFO L471 AbstractCegarLoop]: Abstraction has 635279 states and 820293 transitions. [2024-12-02 07:08:26,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 07:08:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 635279 states and 820293 transitions. [2024-12-02 07:08:26,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 07:08:26,107 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:26,107 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 07:08:26,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 07:08:26,108 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:08:26,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash -486616623, now seen corresponding path program 1 times [2024-12-02 07:08:26,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:08:26,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067212245] [2024-12-02 07:08:26,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:26,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:08:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:26,246 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 07:08:26,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:08:26,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067212245] [2024-12-02 07:08:26,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067212245] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:08:26,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034933209] [2024-12-02 07:08:26,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:26,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:26,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:26,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:08:26,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff0cf54-372c-4f6f-8b26-df3c9c8f918a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:08:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:26,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 07:08:26,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:08:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:26,928 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:08:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:28,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034933209] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:08:28,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:08:28,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 13] total 24 [2024-12-02 07:08:28,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039175801] [2024-12-02 07:08:28,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:08:28,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 07:08:28,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:08:28,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 07:08:28,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:08:28,010 INFO L87 Difference]: Start difference. First operand 635279 states and 820293 transitions. Second operand has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 0 states have call successors, (0), 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 07:08:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:39,791 INFO L93 Difference]: Finished difference Result 3649610 states and 4708563 transitions. [2024-12-02 07:08:39,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-12-02 07:08:39,791 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 0 states have call successors, (0), 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 116 [2024-12-02 07:08:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:44,061 INFO L225 Difference]: With dead ends: 3649610 [2024-12-02 07:08:44,061 INFO L226 Difference]: Without dead ends: 3214565 [2024-12-02 07:08:44,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3800 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2363, Invalid=7143, Unknown=0, NotChecked=0, Total=9506 [2024-12-02 07:08:44,379 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 6480 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6480 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:44,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6480 Valid, 4365 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:08:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214565 states. [2024-12-02 07:09:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214565 to 1797242. [2024-12-02 07:09:05,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797242 states, 1797241 states have (on average 1.2751105722604814) internal successors, (2291681), 1797241 states have internal predecessors, (2291681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)