./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC --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 b8f220cadba131cee309fef082c623cdd627c534b9e708cc4a4f1dd2aa7336b9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:48:28,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:48:29,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:48:29,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:48:29,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:48:29,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:48:29,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:48:29,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:48:29,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:48:29,070 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:48:29,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:48:29,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:48:29,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:48:29,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:48:29,071 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:48:29,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:48:29,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:48:29,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:48:29,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:48:29,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:48:29,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:48:29,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:48:29,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:48:29,076 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:29,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:29,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:29,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:48:29,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:48:29,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:48:29,079 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_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC 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 -> b8f220cadba131cee309fef082c623cdd627c534b9e708cc4a4f1dd2aa7336b9 [2024-11-23 23:48:29,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:48:29,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:48:29,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:48:29,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:48:29,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:48:29,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-23 23:48:32,455 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/data/b79c14ed4/a5bc7eb5775f43e7b86b812ca41a98cd/FLAGd6b0e3312 [2024-11-23 23:48:32,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:48:32,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-23 23:48:32,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/data/b79c14ed4/a5bc7eb5775f43e7b86b812ca41a98cd/FLAGd6b0e3312 [2024-11-23 23:48:32,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/data/b79c14ed4/a5bc7eb5775f43e7b86b812ca41a98cd [2024-11-23 23:48:32,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:48:32,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:48:32,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:32,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:48:32,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:48:32,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:32" (1/1) ... [2024-11-23 23:48:32,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb9c6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:32, skipping insertion in model container [2024-11-23 23:48:32,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:32" (1/1) ... [2024-11-23 23:48:32,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:48:33,137 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_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335] [2024-11-23 23:48:33,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:33,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:48:33,311 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_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335] [2024-11-23 23:48:33,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:33,370 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:48:33,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33 WrapperNode [2024-11-23 23:48:33,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:33,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:33,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:48:33,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:48:33,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,440 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 564 [2024-11-23 23:48:33,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:33,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:48:33,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:48:33,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:48:33,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,478 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]. [2024-11-23 23:48:33,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,487 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:48:33,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:48:33,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:48:33,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:48:33,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:33,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:48:33,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:48:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:48:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:48:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:48:33,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:48:33,744 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:48:33,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:48:34,588 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-23 23:48:34,588 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:48:34,607 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:48:34,607 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:48:34,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:34 BoogieIcfgContainer [2024-11-23 23:48:34,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:48:34,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:48:34,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:48:34,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:48:34,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:48:32" (1/3) ... [2024-11-23 23:48:34,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af3adba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:48:34, skipping insertion in model container [2024-11-23 23:48:34,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (2/3) ... [2024-11-23 23:48:34,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af3adba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:48:34, skipping insertion in model container [2024-11-23 23:48:34,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:34" (3/3) ... [2024-11-23 23:48:34,620 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-23 23:48:34,637 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:48:34,639 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c that has 1 procedures, 131 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:48:34,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:48:34,739 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;@20f719ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:48:34,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:48:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 130 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 23:48:34,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:34,755 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] [2024-11-23 23:48:34,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:34,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:34,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1065941507, now seen corresponding path program 1 times [2024-11-23 23:48:34,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313543772] [2024-11-23 23:48:34,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:35,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313543772] [2024-11-23 23:48:35,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313543772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:35,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:35,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747192841] [2024-11-23 23:48:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:35,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:35,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:35,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:35,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:35,381 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 130 states have internal predecessors, (220), 0 states have call successors, (0), 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 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:35,483 INFO L93 Difference]: Finished difference Result 307 states and 498 transitions. [2024-11-23 23:48:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:35,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-23 23:48:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:35,496 INFO L225 Difference]: With dead ends: 307 [2024-11-23 23:48:35,496 INFO L226 Difference]: Without dead ends: 205 [2024-11-23 23:48:35,499 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 [2024-11-23 23:48:35,506 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 158 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:35,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 467 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:35,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-23 23:48:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2024-11-23 23:48:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.5) internal successors, (303), 202 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 303 transitions. [2024-11-23 23:48:35,572 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 303 transitions. Word has length 60 [2024-11-23 23:48:35,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:35,572 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 303 transitions. [2024-11-23 23:48:35,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:35,573 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 303 transitions. [2024-11-23 23:48:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-23 23:48:35,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:35,575 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] [2024-11-23 23:48:35,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:48:35,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:35,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1987406881, now seen corresponding path program 1 times [2024-11-23 23:48:35,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:35,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492527573] [2024-11-23 23:48:35,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:35,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:35,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492527573] [2024-11-23 23:48:35,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492527573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:35,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:35,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:35,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927256910] [2024-11-23 23:48:35,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:35,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:35,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:35,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:35,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:35,922 INFO L87 Difference]: Start difference. First operand 203 states and 303 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:35,983 INFO L93 Difference]: Finished difference Result 507 states and 787 transitions. [2024-11-23 23:48:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-23 23:48:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:35,991 INFO L225 Difference]: With dead ends: 507 [2024-11-23 23:48:35,993 INFO L226 Difference]: Without dead ends: 339 [2024-11-23 23:48:35,994 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 [2024-11-23 23:48:35,995 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 127 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:35,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 402 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-23 23:48:36,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2024-11-23 23:48:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.5357142857142858) internal successors, (516), 336 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 516 transitions. [2024-11-23 23:48:36,029 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 516 transitions. Word has length 61 [2024-11-23 23:48:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:36,029 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 516 transitions. [2024-11-23 23:48:36,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 516 transitions. [2024-11-23 23:48:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-23 23:48:36,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:36,033 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] [2024-11-23 23:48:36,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:48:36,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:36,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash 175155952, now seen corresponding path program 1 times [2024-11-23 23:48:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733777175] [2024-11-23 23:48:36,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:36,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733777175] [2024-11-23 23:48:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733777175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:36,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:36,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:36,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383653106] [2024-11-23 23:48:36,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:36,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:36,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:36,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:36,289 INFO L87 Difference]: Start difference. First operand 337 states and 516 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:36,349 INFO L93 Difference]: Finished difference Result 877 states and 1374 transitions. [2024-11-23 23:48:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:36,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-23 23:48:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:36,355 INFO L225 Difference]: With dead ends: 877 [2024-11-23 23:48:36,355 INFO L226 Difference]: Without dead ends: 575 [2024-11-23 23:48:36,356 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 [2024-11-23 23:48:36,357 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 122 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:36,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 387 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-23 23:48:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2024-11-23 23:48:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.5524475524475525) internal successors, (888), 572 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 888 transitions. [2024-11-23 23:48:36,390 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 888 transitions. Word has length 62 [2024-11-23 23:48:36,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:36,390 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 888 transitions. [2024-11-23 23:48:36,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 888 transitions. [2024-11-23 23:48:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 23:48:36,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:36,392 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] [2024-11-23 23:48:36,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:48:36,392 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:36,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,393 INFO L85 PathProgramCache]: Analyzing trace with hash -546721508, now seen corresponding path program 1 times [2024-11-23 23:48:36,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:36,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945303777] [2024-11-23 23:48:36,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:36,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:36,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945303777] [2024-11-23 23:48:36,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945303777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:36,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:36,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135654119] [2024-11-23 23:48:36,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:36,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:36,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:36,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:36,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:36,604 INFO L87 Difference]: Start difference. First operand 573 states and 888 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:36,648 INFO L93 Difference]: Finished difference Result 1521 states and 2386 transitions. [2024-11-23 23:48:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:36,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-23 23:48:36,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:36,655 INFO L225 Difference]: With dead ends: 1521 [2024-11-23 23:48:36,656 INFO L226 Difference]: Without dead ends: 983 [2024-11-23 23:48:36,658 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 [2024-11-23 23:48:36,661 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 117 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:36,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-23 23:48:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 981. [2024-11-23 23:48:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.5551020408163265) internal successors, (1524), 980 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1524 transitions. [2024-11-23 23:48:36,704 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1524 transitions. Word has length 63 [2024-11-23 23:48:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:36,705 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1524 transitions. [2024-11-23 23:48:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1524 transitions. [2024-11-23 23:48:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:48:36,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:36,711 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] [2024-11-23 23:48:36,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:48:36,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:36,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash -8861705, now seen corresponding path program 1 times [2024-11-23 23:48:36,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:36,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130717172] [2024-11-23 23:48:36,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:37,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:37,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130717172] [2024-11-23 23:48:37,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130717172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:37,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:37,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:48:37,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66626678] [2024-11-23 23:48:37,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:37,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:48:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:37,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:48:37,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:48:37,059 INFO L87 Difference]: Start difference. First operand 981 states and 1524 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2024-11-23 23:48:37,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:37,340 INFO L93 Difference]: Finished difference Result 6657 states and 10458 transitions. [2024-11-23 23:48:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:48:37,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 [2024-11-23 23:48:37,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:37,366 INFO L225 Difference]: With dead ends: 6657 [2024-11-23 23:48:37,366 INFO L226 Difference]: Without dead ends: 5711 [2024-11-23 23:48:37,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:48:37,371 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1940 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:37,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 1661 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:48:37,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2024-11-23 23:48:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 1925. [2024-11-23 23:48:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.5488565488565489) internal successors, (2980), 1924 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2980 transitions. [2024-11-23 23:48:37,510 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2980 transitions. Word has length 64 [2024-11-23 23:48:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:37,510 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2980 transitions. [2024-11-23 23:48:37,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2024-11-23 23:48:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2980 transitions. [2024-11-23 23:48:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-23 23:48:37,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:37,516 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] [2024-11-23 23:48:37,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:48:37,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:37,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash -294169095, now seen corresponding path program 1 times [2024-11-23 23:48:37,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:37,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851517679] [2024-11-23 23:48:37,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:37,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:37,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:37,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851517679] [2024-11-23 23:48:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851517679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:37,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:37,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:48:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120903921] [2024-11-23 23:48:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:37,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:48:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:37,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:48:37,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:48:37,950 INFO L87 Difference]: Start difference. First operand 1925 states and 2980 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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) [2024-11-23 23:48:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:38,222 INFO L93 Difference]: Finished difference Result 10095 states and 15593 transitions. [2024-11-23 23:48:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:48:38,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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 [2024-11-23 23:48:38,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:38,258 INFO L225 Difference]: With dead ends: 10095 [2024-11-23 23:48:38,259 INFO L226 Difference]: Without dead ends: 8205 [2024-11-23 23:48:38,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:48:38,270 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 627 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:38,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1025 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:48:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2024-11-23 23:48:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 8197. [2024-11-23 23:48:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 8196 states have (on average 1.5387994143484627) internal successors, (12612), 8196 states have internal predecessors, (12612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 12612 transitions. [2024-11-23 23:48:38,526 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 12612 transitions. Word has length 65 [2024-11-23 23:48:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:38,527 INFO L471 AbstractCegarLoop]: Abstraction has 8197 states and 12612 transitions. [2024-11-23 23:48:38,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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) [2024-11-23 23:48:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 12612 transitions. [2024-11-23 23:48:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-23 23:48:38,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:38,528 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] [2024-11-23 23:48:38,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:48:38,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:38,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:38,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1075132642, now seen corresponding path program 1 times [2024-11-23 23:48:38,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:38,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815329057] [2024-11-23 23:48:38,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815329057] [2024-11-23 23:48:38,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815329057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:38,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:38,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684586825] [2024-11-23 23:48:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:38,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:38,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:38,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:38,653 INFO L87 Difference]: Start difference. First operand 8197 states and 12612 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-11-23 23:48:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:38,897 INFO L93 Difference]: Finished difference Result 22761 states and 34886 transitions. [2024-11-23 23:48:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2024-11-23 23:48:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:38,958 INFO L225 Difference]: With dead ends: 22761 [2024-11-23 23:48:38,958 INFO L226 Difference]: Without dead ends: 14599 [2024-11-23 23:48:38,965 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 [2024-11-23 23:48:38,966 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 136 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:38,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 450 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2024-11-23 23:48:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14597. [2024-11-23 23:48:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14597 states, 14596 states have (on average 1.5174020279528637) internal successors, (22148), 14596 states have internal predecessors, (22148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14597 states to 14597 states and 22148 transitions. [2024-11-23 23:48:39,424 INFO L78 Accepts]: Start accepts. Automaton has 14597 states and 22148 transitions. Word has length 65 [2024-11-23 23:48:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:39,424 INFO L471 AbstractCegarLoop]: Abstraction has 14597 states and 22148 transitions. [2024-11-23 23:48:39,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-11-23 23:48:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 14597 states and 22148 transitions. [2024-11-23 23:48:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:48:39,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:39,426 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] [2024-11-23 23:48:39,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:48:39,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:39,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash -938816400, now seen corresponding path program 1 times [2024-11-23 23:48:39,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:39,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447311958] [2024-11-23 23:48:39,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:39,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:39,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447311958] [2024-11-23 23:48:39,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447311958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:39,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:39,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:48:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556619630] [2024-11-23 23:48:39,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:39,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:48:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:39,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:48:39,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:48:39,614 INFO L87 Difference]: Start difference. First operand 14597 states and 22148 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) [2024-11-23 23:48:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:40,048 INFO L93 Difference]: Finished difference Result 43721 states and 66374 transitions. [2024-11-23 23:48:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:48:40,049 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 [2024-11-23 23:48:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:40,120 INFO L225 Difference]: With dead ends: 43721 [2024-11-23 23:48:40,120 INFO L226 Difference]: Without dead ends: 29159 [2024-11-23 23:48:40,210 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 [2024-11-23 23:48:40,211 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 777 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:40,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 212 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:48:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29159 states. [2024-11-23 23:48:40,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29159 to 29157. [2024-11-23 23:48:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29157 states, 29156 states have (on average 1.509260529565098) internal successors, (44004), 29156 states have internal predecessors, (44004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29157 states to 29157 states and 44004 transitions. [2024-11-23 23:48:41,247 INFO L78 Accepts]: Start accepts. Automaton has 29157 states and 44004 transitions. Word has length 67 [2024-11-23 23:48:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:41,247 INFO L471 AbstractCegarLoop]: Abstraction has 29157 states and 44004 transitions. [2024-11-23 23:48:41,248 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) [2024-11-23 23:48:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 29157 states and 44004 transitions. [2024-11-23 23:48:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:48:41,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:41,249 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] [2024-11-23 23:48:41,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:48:41,250 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:41,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:41,251 INFO L85 PathProgramCache]: Analyzing trace with hash 831155307, now seen corresponding path program 1 times [2024-11-23 23:48:41,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:41,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190447753] [2024-11-23 23:48:41,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:41,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190447753] [2024-11-23 23:48:41,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190447753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:41,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:41,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:48:41,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41676807] [2024-11-23 23:48:41,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:41,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:48:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:41,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:48:41,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:48:41,632 INFO L87 Difference]: Start difference. First operand 29157 states and 44004 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-23 23:48:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:41,815 INFO L93 Difference]: Finished difference Result 30439 states and 45925 transitions. [2024-11-23 23:48:41,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:48:41,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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 [2024-11-23 23:48:41,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:41,879 INFO L225 Difference]: With dead ends: 30439 [2024-11-23 23:48:41,879 INFO L226 Difference]: Without dead ends: 30437 [2024-11-23 23:48:41,885 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 [2024-11-23 23:48:41,886 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:41,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 709 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:41,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30437 states. [2024-11-23 23:48:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30437 to 30437. [2024-11-23 23:48:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30437 states, 30436 states have (on average 1.4878433434091207) internal successors, (45284), 30436 states have internal predecessors, (45284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30437 states to 30437 states and 45284 transitions. [2024-11-23 23:48:42,421 INFO L78 Accepts]: Start accepts. Automaton has 30437 states and 45284 transitions. Word has length 67 [2024-11-23 23:48:42,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:42,422 INFO L471 AbstractCegarLoop]: Abstraction has 30437 states and 45284 transitions. [2024-11-23 23:48:42,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-23 23:48:42,422 INFO L276 IsEmpty]: Start isEmpty. Operand 30437 states and 45284 transitions. [2024-11-23 23:48:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 23:48:42,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:42,424 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] [2024-11-23 23:48:42,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:48:42,424 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:42,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 6583829, now seen corresponding path program 1 times [2024-11-23 23:48:42,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:42,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780843876] [2024-11-23 23:48:42,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:42,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:42,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780843876] [2024-11-23 23:48:42,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780843876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:42,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:42,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:42,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877273581] [2024-11-23 23:48:42,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:42,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:42,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:42,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:42,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:42,535 INFO L87 Difference]: Start difference. First operand 30437 states and 45284 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) [2024-11-23 23:48:42,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:42,941 INFO L93 Difference]: Finished difference Result 74187 states and 110320 transitions. [2024-11-23 23:48:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:42,942 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 [2024-11-23 23:48:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:43,064 INFO L225 Difference]: With dead ends: 74187 [2024-11-23 23:48:43,064 INFO L226 Difference]: Without dead ends: 43785 [2024-11-23 23:48:43,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:43,101 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 107 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:43,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:43,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43785 states. [2024-11-23 23:48:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43785 to 43783. [2024-11-23 23:48:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43783 states, 43782 states have (on average 1.4796491708921475) internal successors, (64782), 43782 states have internal predecessors, (64782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43783 states to 43783 states and 64782 transitions. [2024-11-23 23:48:44,232 INFO L78 Accepts]: Start accepts. Automaton has 43783 states and 64782 transitions. Word has length 68 [2024-11-23 23:48:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:44,232 INFO L471 AbstractCegarLoop]: Abstraction has 43783 states and 64782 transitions. [2024-11-23 23:48:44,232 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) [2024-11-23 23:48:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 43783 states and 64782 transitions. [2024-11-23 23:48:44,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:48:44,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:44,251 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:48:44,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:48:44,252 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:44,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:44,253 INFO L85 PathProgramCache]: Analyzing trace with hash -83102152, now seen corresponding path program 1 times [2024-11-23 23:48:44,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:44,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511891110] [2024-11-23 23:48:44,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:44,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:48:44,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:44,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511891110] [2024-11-23 23:48:44,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511891110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:44,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237673930] [2024-11-23 23:48:44,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:44,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:44,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:44,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:44,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:48:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:44,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:48:44,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:45,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:47,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237673930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:47,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:47,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 7] total 15 [2024-11-23 23:48:47,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195600275] [2024-11-23 23:48:47,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:47,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:48:47,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:47,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:48:47,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:48:47,061 INFO L87 Difference]: Start difference. First operand 43783 states and 64782 transitions. Second operand has 15 states, 15 states have (on average 17.8) internal successors, (267), 15 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:48,672 INFO L93 Difference]: Finished difference Result 177941 states and 264054 transitions. [2024-11-23 23:48:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:48:48,673 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.8) internal successors, (267), 15 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 23:48:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:48,974 INFO L225 Difference]: With dead ends: 177941 [2024-11-23 23:48:48,974 INFO L226 Difference]: Without dead ends: 134195 [2024-11-23 23:48:49,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:48:49,009 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 2991 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:49,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 2218 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:48:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134195 states. [2024-11-23 23:48:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134195 to 119171. [2024-11-23 23:48:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119171 states, 119170 states have (on average 1.4725853822270705) internal successors, (175488), 119170 states have internal predecessors, (175488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119171 states to 119171 states and 175488 transitions. [2024-11-23 23:48:51,564 INFO L78 Accepts]: Start accepts. Automaton has 119171 states and 175488 transitions. Word has length 93 [2024-11-23 23:48:51,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:51,565 INFO L471 AbstractCegarLoop]: Abstraction has 119171 states and 175488 transitions. [2024-11-23 23:48:51,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.8) internal successors, (267), 15 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand 119171 states and 175488 transitions. [2024-11-23 23:48:51,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:48:51,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:51,575 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:48:51,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:48:51,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e924fb-a4aa-46cc-a4a7-af1c48ceda3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:48:51,776 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:51,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1524201728, now seen corresponding path program 1 times [2024-11-23 23:48:51,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:51,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124211244] [2024-11-23 23:48:51,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:51,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:51,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124211244] [2024-11-23 23:48:51,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124211244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:51,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:51,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958355243] [2024-11-23 23:48:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:51,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:51,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:51,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:51,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:51,892 INFO L87 Difference]: Start difference. First operand 119171 states and 175488 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:52,450 INFO L93 Difference]: Finished difference Result 162823 states and 239402 transitions. [2024-11-23 23:48:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:52,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:48:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:52,621 INFO L225 Difference]: With dead ends: 162823 [2024-11-23 23:48:52,621 INFO L226 Difference]: Without dead ends: 121851 [2024-11-23 23:48:52,664 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 [2024-11-23 23:48:52,665 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 109 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:52,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 418 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:52,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121851 states. [2024-11-23 23:48:54,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121851 to 119214. [2024-11-23 23:48:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119214 states, 119213 states have (on average 1.451393723838843) internal successors, (173025), 119213 states have internal predecessors, (173025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119214 states to 119214 states and 173025 transitions. [2024-11-23 23:48:55,313 INFO L78 Accepts]: Start accepts. Automaton has 119214 states and 173025 transitions. Word has length 94 [2024-11-23 23:48:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:55,314 INFO L471 AbstractCegarLoop]: Abstraction has 119214 states and 173025 transitions. [2024-11-23 23:48:55,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 119214 states and 173025 transitions. [2024-11-23 23:48:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:48:55,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:55,325 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:48:55,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:48:55,326 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:55,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash -894082791, now seen corresponding path program 1 times [2024-11-23 23:48:55,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:55,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279050275] [2024-11-23 23:48:55,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:55,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:55,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:55,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279050275] [2024-11-23 23:48:55,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279050275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:55,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:55,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931113028] [2024-11-23 23:48:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:55,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:55,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:55,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:55,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:55,439 INFO L87 Difference]: Start difference. First operand 119214 states and 173025 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:56,214 INFO L93 Difference]: Finished difference Result 214643 states and 311814 transitions. [2024-11-23 23:48:56,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:56,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:48:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:56,436 INFO L225 Difference]: With dead ends: 214643 [2024-11-23 23:48:56,436 INFO L226 Difference]: Without dead ends: 153854 [2024-11-23 23:48:56,497 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 [2024-11-23 23:48:56,498 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 108 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:56,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 399 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:48:56,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153854 states. [2024-11-23 23:48:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153854 to 148404. [2024-11-23 23:48:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148404 states, 148403 states have (on average 1.434775577313127) internal successors, (212925), 148403 states have internal predecessors, (212925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148404 states to 148404 states and 212925 transitions. [2024-11-23 23:48:58,574 INFO L78 Accepts]: Start accepts. Automaton has 148404 states and 212925 transitions. Word has length 94 [2024-11-23 23:48:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:58,574 INFO L471 AbstractCegarLoop]: Abstraction has 148404 states and 212925 transitions. [2024-11-23 23:48:58,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 148404 states and 212925 transitions. [2024-11-23 23:48:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:48:58,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:58,580 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:48:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:48:58,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:58,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1845591972, now seen corresponding path program 1 times [2024-11-23 23:48:58,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:58,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401037747] [2024-11-23 23:48:58,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401037747] [2024-11-23 23:48:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401037747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:59,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:59,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:48:59,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210087040] [2024-11-23 23:48:59,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:59,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:59,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:59,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:59,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:59,171 INFO L87 Difference]: Start difference. First operand 148404 states and 212925 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:49:00,546 INFO L93 Difference]: Finished difference Result 337301 states and 483970 transitions. [2024-11-23 23:49:00,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:49:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:49:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:49:00,749 INFO L225 Difference]: With dead ends: 337301 [2024-11-23 23:49:00,749 INFO L226 Difference]: Without dead ends: 226166 [2024-11-23 23:49:00,803 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 [2024-11-23 23:49:00,804 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:49:00,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 380 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:49:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226166 states. [2024-11-23 23:49:03,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226166 to 224242. [2024-11-23 23:49:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224242 states, 224241 states have (on average 1.419566448597714) internal successors, (318325), 224241 states have internal predecessors, (318325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224242 states to 224242 states and 318325 transitions. [2024-11-23 23:49:03,767 INFO L78 Accepts]: Start accepts. Automaton has 224242 states and 318325 transitions. Word has length 94 [2024-11-23 23:49:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:49:03,767 INFO L471 AbstractCegarLoop]: Abstraction has 224242 states and 318325 transitions. [2024-11-23 23:49:03,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 224242 states and 318325 transitions. [2024-11-23 23:49:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:49:03,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:49:03,773 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:49:03,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:49:03,773 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:49:03,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 343887049, now seen corresponding path program 1 times [2024-11-23 23:49:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909957904] [2024-11-23 23:49:03,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:49:04,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:04,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909957904] [2024-11-23 23:49:04,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909957904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:04,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:04,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:49:04,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624727221] [2024-11-23 23:49:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:04,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:49:04,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:04,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:49:04,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:49:04,612 INFO L87 Difference]: Start difference. First operand 224242 states and 318325 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:07,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:49:07,222 INFO L93 Difference]: Finished difference Result 646944 states and 927717 transitions. [2024-11-23 23:49:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:49:07,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:49:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:49:07,935 INFO L225 Difference]: With dead ends: 646944 [2024-11-23 23:49:07,935 INFO L226 Difference]: Without dead ends: 542934 [2024-11-23 23:49:08,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:49:08,022 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 1176 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:49:08,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1870 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:49:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542934 states. [2024-11-23 23:49:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542934 to 323432. [2024-11-23 23:49:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323432 states, 323431 states have (on average 1.4170286707211122) internal successors, (458311), 323431 states have internal predecessors, (458311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323432 states to 323432 states and 458311 transitions. [2024-11-23 23:49:14,575 INFO L78 Accepts]: Start accepts. Automaton has 323432 states and 458311 transitions. Word has length 94 [2024-11-23 23:49:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:49:14,575 INFO L471 AbstractCegarLoop]: Abstraction has 323432 states and 458311 transitions. [2024-11-23 23:49:14,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 323432 states and 458311 transitions. [2024-11-23 23:49:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:49:14,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:49:14,589 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:49:14,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:49:14,589 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:49:14,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1789805472, now seen corresponding path program 1 times [2024-11-23 23:49:14,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:14,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323334947] [2024-11-23 23:49:14,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:14,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:14,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323334947] [2024-11-23 23:49:14,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323334947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:14,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:14,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:49:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381877772] [2024-11-23 23:49:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:14,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:49:14,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:14,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:49:14,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:49:14,785 INFO L87 Difference]: Start difference. First operand 323432 states and 458311 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:49:18,981 INFO L93 Difference]: Finished difference Result 916231 states and 1295343 transitions. [2024-11-23 23:49:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:49:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:49:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:49:19,952 INFO L225 Difference]: With dead ends: 916231 [2024-11-23 23:49:19,952 INFO L226 Difference]: Without dead ends: 608049 [2024-11-23 23:49:20,134 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 [2024-11-23 23:49:20,135 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:49:20,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 360 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:49:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608049 states.