./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB --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 2c3b1a53bc376cbb6283db57f6430d0a17b3acc99aa70ab198c7c36e6e59ecc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:38:00,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:38:00,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:38:00,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:38:00,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:38:00,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:38:00,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:38:00,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:38:00,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:38:00,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:38:00,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:38:00,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:38:00,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:38:00,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:38:00,583 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:38:00,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:38:00,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:38:00,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:38:00,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:38:00,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:38:00,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:38:00,585 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:38:00,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:38:00,585 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:38:00,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:00,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:00,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:00,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:00,586 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:38:00,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:00,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:00,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:00,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:00,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:38:00,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:38:00,587 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_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 2c3b1a53bc376cbb6283db57f6430d0a17b3acc99aa70ab198c7c36e6e59ecc9 [2024-11-28 04:38:00,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:38:00,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:38:00,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:38:00,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:38:00,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:38:00,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 04:38:04,241 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/data/be9e09348/c3fb3f8738d940f18db40f4a0b1ce18c/FLAG8e75641ea [2024-11-28 04:38:04,644 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:38:04,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 04:38:04,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/data/be9e09348/c3fb3f8738d940f18db40f4a0b1ce18c/FLAG8e75641ea [2024-11-28 04:38:04,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/data/be9e09348/c3fb3f8738d940f18db40f4a0b1ce18c [2024-11-28 04:38:04,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:38:04,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:38:04,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:04,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:38:04,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:38:04,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:04" (1/1) ... [2024-11-28 04:38:04,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b41e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:04, skipping insertion in model container [2024-11-28 04:38:04,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:04" (1/1) ... [2024-11-28 04:38:04,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:38:05,035 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_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c[11270,11283] [2024-11-28 04:38:05,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:05,057 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:38:05,111 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_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c[11270,11283] [2024-11-28 04:38:05,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:05,129 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:38:05,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05 WrapperNode [2024-11-28 04:38:05,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:05,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:05,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:38:05,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:38:05,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,176 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 338 [2024-11-28 04:38:05,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:05,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:38:05,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:38:05,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:38:05,187 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,215 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]. [2024-11-28 04:38:05,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:38:05,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:38:05,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:38:05,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:38:05,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (1/1) ... [2024-11-28 04:38:05,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:05,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:38:05,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:38:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:38:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:38:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:38:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:38:05,488 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:38:05,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:38:06,136 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-28 04:38:06,136 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:38:06,150 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:38:06,150 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:38:06,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:06 BoogieIcfgContainer [2024-11-28 04:38:06,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:38:06,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:38:06,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:38:06,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:38:06,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:04" (1/3) ... [2024-11-28 04:38:06,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220de88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:06, skipping insertion in model container [2024-11-28 04:38:06,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:05" (2/3) ... [2024-11-28 04:38:06,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220de88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:06, skipping insertion in model container [2024-11-28 04:38:06,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:06" (3/3) ... [2024-11-28 04:38:06,162 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 04:38:06,180 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:38:06,182 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c that has 1 procedures, 84 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:38:06,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:38:06,260 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;@7f48b6bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:38:06,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:38:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7439024390243902) internal successors, (143), 83 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:06,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:38:06,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:06,278 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] [2024-11-28 04:38:06,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:06,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1530299265, now seen corresponding path program 1 times [2024-11-28 04:38:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:06,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396149427] [2024-11-28 04:38:06,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:06,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:06,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396149427] [2024-11-28 04:38:06,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396149427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:06,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:06,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:06,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308908115] [2024-11-28 04:38:06,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:06,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:38:06,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:06,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:38:06,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:38:06,695 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7439024390243902) internal successors, (143), 83 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:06,726 INFO L93 Difference]: Finished difference Result 132 states and 218 transitions. [2024-11-28 04:38:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:38:06,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-28 04:38:06,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:06,741 INFO L225 Difference]: With dead ends: 132 [2024-11-28 04:38:06,741 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:38:06,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:38:06,752 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:06,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:38:06,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-28 04:38:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.7215189873417722) internal successors, (136), 79 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 136 transitions. [2024-11-28 04:38:06,813 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 136 transitions. Word has length 24 [2024-11-28 04:38:06,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:06,813 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 136 transitions. [2024-11-28 04:38:06,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 136 transitions. [2024-11-28 04:38:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:38:06,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:06,817 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] [2024-11-28 04:38:06,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:38:06,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:06,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash -158644477, now seen corresponding path program 1 times [2024-11-28 04:38:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783486273] [2024-11-28 04:38:06,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:07,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783486273] [2024-11-28 04:38:07,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783486273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:07,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:07,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:38:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116895607] [2024-11-28 04:38:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:07,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:38:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:07,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:38:07,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:07,277 INFO L87 Difference]: Start difference. First operand 80 states and 136 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:07,415 INFO L93 Difference]: Finished difference Result 127 states and 208 transitions. [2024-11-28 04:38:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:38:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-28 04:38:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:07,417 INFO L225 Difference]: With dead ends: 127 [2024-11-28 04:38:07,417 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:38:07,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:07,419 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:07,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:07,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:38:07,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-28 04:38:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2024-11-28 04:38:07,427 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 24 [2024-11-28 04:38:07,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:07,427 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2024-11-28 04:38:07,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:07,427 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2024-11-28 04:38:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:38:07,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:07,429 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] [2024-11-28 04:38:07,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:38:07,430 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:07,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1644700780, now seen corresponding path program 1 times [2024-11-28 04:38:07,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133784077] [2024-11-28 04:38:07,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:07,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:07,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:07,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133784077] [2024-11-28 04:38:07,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133784077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:07,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156254953] [2024-11-28 04:38:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:07,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:07,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:07,935 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:08,394 INFO L93 Difference]: Finished difference Result 510 states and 785 transitions. [2024-11-28 04:38:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:38:08,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-28 04:38:08,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:08,405 INFO L225 Difference]: With dead ends: 510 [2024-11-28 04:38:08,405 INFO L226 Difference]: Without dead ends: 467 [2024-11-28 04:38:08,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:38:08,406 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 767 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:08,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1328 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:38:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-28 04:38:08,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 121. [2024-11-28 04:38:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.4166666666666667) internal successors, (170), 120 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 170 transitions. [2024-11-28 04:38:08,440 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 170 transitions. Word has length 54 [2024-11-28 04:38:08,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:08,440 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 170 transitions. [2024-11-28 04:38:08,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,441 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions. [2024-11-28 04:38:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:38:08,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:08,442 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] [2024-11-28 04:38:08,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:38:08,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:08,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:08,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1406212196, now seen corresponding path program 1 times [2024-11-28 04:38:08,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:08,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591214610] [2024-11-28 04:38:08,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:08,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:08,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:08,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591214610] [2024-11-28 04:38:08,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591214610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:08,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:08,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:08,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484809031] [2024-11-28 04:38:08,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:08,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:08,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:08,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:08,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:08,614 INFO L87 Difference]: Start difference. First operand 121 states and 170 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:08,641 INFO L93 Difference]: Finished difference Result 278 states and 417 transitions. [2024-11-28 04:38:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:08,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-28 04:38:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:08,644 INFO L225 Difference]: With dead ends: 278 [2024-11-28 04:38:08,645 INFO L226 Difference]: Without dead ends: 194 [2024-11-28 04:38:08,646 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 [2024-11-28 04:38:08,647 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 43 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:08,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 166 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-28 04:38:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2024-11-28 04:38:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 191 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 280 transitions. [2024-11-28 04:38:08,674 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 280 transitions. Word has length 56 [2024-11-28 04:38:08,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:08,675 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 280 transitions. [2024-11-28 04:38:08,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:08,675 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 280 transitions. [2024-11-28 04:38:08,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:38:08,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:08,679 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] [2024-11-28 04:38:08,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:38:08,679 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:08,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1339718684, now seen corresponding path program 1 times [2024-11-28 04:38:08,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:08,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726511868] [2024-11-28 04:38:08,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:08,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:09,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:09,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726511868] [2024-11-28 04:38:09,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726511868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:09,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:09,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:09,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643780275] [2024-11-28 04:38:09,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:09,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:09,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:09,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:09,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:09,331 INFO L87 Difference]: Start difference. First operand 192 states and 280 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:09,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:09,616 INFO L93 Difference]: Finished difference Result 349 states and 524 transitions. [2024-11-28 04:38:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:09,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-28 04:38:09,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:09,619 INFO L225 Difference]: With dead ends: 349 [2024-11-28 04:38:09,619 INFO L226 Difference]: Without dead ends: 194 [2024-11-28 04:38:09,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:38:09,620 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 70 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:09,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 423 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:09,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-28 04:38:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2024-11-28 04:38:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 1.455497382198953) internal successors, (278), 191 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 278 transitions. [2024-11-28 04:38:09,651 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 278 transitions. Word has length 56 [2024-11-28 04:38:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:09,652 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 278 transitions. [2024-11-28 04:38:09,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 278 transitions. [2024-11-28 04:38:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 04:38:09,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:09,654 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] [2024-11-28 04:38:09,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:38:09,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:09,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1003670675, now seen corresponding path program 1 times [2024-11-28 04:38:09,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:09,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779338750] [2024-11-28 04:38:09,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:09,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:10,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:10,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779338750] [2024-11-28 04:38:10,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779338750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:10,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:10,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:38:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323572350] [2024-11-28 04:38:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:10,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:38:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:10,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:38:10,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:38:10,180 INFO L87 Difference]: Start difference. First operand 192 states and 278 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:10,253 INFO L93 Difference]: Finished difference Result 200 states and 287 transitions. [2024-11-28 04:38:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:38:10,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-28 04:38:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:10,257 INFO L225 Difference]: With dead ends: 200 [2024-11-28 04:38:10,257 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 04:38:10,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:38:10,259 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:10,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 680 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:10,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 04:38:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-28 04:38:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.4365482233502538) internal successors, (283), 197 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2024-11-28 04:38:10,282 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 57 [2024-11-28 04:38:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:10,283 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2024-11-28 04:38:10,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2024-11-28 04:38:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:38:10,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:10,285 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] [2024-11-28 04:38:10,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:38:10,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:10,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:10,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1422466468, now seen corresponding path program 1 times [2024-11-28 04:38:10,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:10,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717041328] [2024-11-28 04:38:10,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:10,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:10,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:10,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717041328] [2024-11-28 04:38:10,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717041328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:10,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:10,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:10,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11825228] [2024-11-28 04:38:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:10,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:10,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:10,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:10,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:10,439 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:10,468 INFO L93 Difference]: Finished difference Result 373 states and 549 transitions. [2024-11-28 04:38:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:10,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-28 04:38:10,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:10,471 INFO L225 Difference]: With dead ends: 373 [2024-11-28 04:38:10,471 INFO L226 Difference]: Without dead ends: 283 [2024-11-28 04:38:10,473 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 [2024-11-28 04:38:10,474 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 57 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:10,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 226 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-28 04:38:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2024-11-28 04:38:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.4535714285714285) internal successors, (407), 280 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 407 transitions. [2024-11-28 04:38:10,501 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 407 transitions. Word has length 58 [2024-11-28 04:38:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:10,502 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 407 transitions. [2024-11-28 04:38:10,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 407 transitions. [2024-11-28 04:38:10,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:38:10,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:10,503 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] [2024-11-28 04:38:10,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:38:10,504 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:10,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:10,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1370382428, now seen corresponding path program 1 times [2024-11-28 04:38:10,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:10,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349434098] [2024-11-28 04:38:10,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:10,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:10,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349434098] [2024-11-28 04:38:10,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349434098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:10,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:10,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932417423] [2024-11-28 04:38:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:10,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:10,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:10,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:10,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:10,618 INFO L87 Difference]: Start difference. First operand 281 states and 407 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:10,675 INFO L93 Difference]: Finished difference Result 739 states and 1099 transitions. [2024-11-28 04:38:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-28 04:38:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:10,680 INFO L225 Difference]: With dead ends: 739 [2024-11-28 04:38:10,682 INFO L226 Difference]: Without dead ends: 498 [2024-11-28 04:38:10,683 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 [2024-11-28 04:38:10,684 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 53 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:10,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 226 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:10,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-28 04:38:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 496. [2024-11-28 04:38:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 1.4646464646464648) internal successors, (725), 495 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 725 transitions. [2024-11-28 04:38:10,719 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 725 transitions. Word has length 58 [2024-11-28 04:38:10,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:10,719 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 725 transitions. [2024-11-28 04:38:10,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,720 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 725 transitions. [2024-11-28 04:38:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:38:10,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:10,721 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] [2024-11-28 04:38:10,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:38:10,721 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:10,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 709116068, now seen corresponding path program 1 times [2024-11-28 04:38:10,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:10,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18803494] [2024-11-28 04:38:10,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18803494] [2024-11-28 04:38:10,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18803494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:10,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:10,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:10,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477109161] [2024-11-28 04:38:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:10,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:10,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:10,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:10,821 INFO L87 Difference]: Start difference. First operand 496 states and 725 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:10,874 INFO L93 Difference]: Finished difference Result 1360 states and 2011 transitions. [2024-11-28 04:38:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-28 04:38:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:10,882 INFO L225 Difference]: With dead ends: 1360 [2024-11-28 04:38:10,882 INFO L226 Difference]: Without dead ends: 904 [2024-11-28 04:38:10,883 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 [2024-11-28 04:38:10,884 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 51 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:10,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 228 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2024-11-28 04:38:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 902. [2024-11-28 04:38:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 901 states have (on average 1.4572697003329633) internal successors, (1313), 901 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1313 transitions. [2024-11-28 04:38:10,959 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1313 transitions. Word has length 58 [2024-11-28 04:38:10,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:10,963 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1313 transitions. [2024-11-28 04:38:10,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:10,963 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1313 transitions. [2024-11-28 04:38:10,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:38:10,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:10,964 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] [2024-11-28 04:38:10,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:38:10,964 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:10,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1804918364, now seen corresponding path program 1 times [2024-11-28 04:38:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279505479] [2024-11-28 04:38:10,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:10,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:11,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279505479] [2024-11-28 04:38:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279505479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:11,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:11,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:11,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976744497] [2024-11-28 04:38:11,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:11,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:11,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:11,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:11,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:11,057 INFO L87 Difference]: Start difference. First operand 902 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:11,124 INFO L93 Difference]: Finished difference Result 2530 states and 3691 transitions. [2024-11-28 04:38:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:11,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-28 04:38:11,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:11,135 INFO L225 Difference]: With dead ends: 2530 [2024-11-28 04:38:11,136 INFO L226 Difference]: Without dead ends: 1668 [2024-11-28 04:38:11,137 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 [2024-11-28 04:38:11,138 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 49 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:11,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 230 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-28 04:38:11,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1666. [2024-11-28 04:38:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1665 states have (on average 1.4372372372372373) internal successors, (2393), 1665 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2393 transitions. [2024-11-28 04:38:11,231 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2393 transitions. Word has length 58 [2024-11-28 04:38:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:11,232 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2393 transitions. [2024-11-28 04:38:11,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2393 transitions. [2024-11-28 04:38:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:38:11,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:11,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:11,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:38:11,234 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:11,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1686322852, now seen corresponding path program 1 times [2024-11-28 04:38:11,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:11,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442029232] [2024-11-28 04:38:11,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:11,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:11,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442029232] [2024-11-28 04:38:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442029232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:11,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658650529] [2024-11-28 04:38:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:11,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:11,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:11,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:11,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:11,331 INFO L87 Difference]: Start difference. First operand 1666 states and 2393 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:11,440 INFO L93 Difference]: Finished difference Result 4726 states and 6763 transitions. [2024-11-28 04:38:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:11,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-28 04:38:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:11,456 INFO L225 Difference]: With dead ends: 4726 [2024-11-28 04:38:11,456 INFO L226 Difference]: Without dead ends: 3100 [2024-11-28 04:38:11,458 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 [2024-11-28 04:38:11,463 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:11,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 232 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2024-11-28 04:38:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 3098. [2024-11-28 04:38:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 3097 states have (on average 1.4081369066838876) internal successors, (4361), 3097 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4361 transitions. [2024-11-28 04:38:11,625 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4361 transitions. Word has length 58 [2024-11-28 04:38:11,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:11,626 INFO L471 AbstractCegarLoop]: Abstraction has 3098 states and 4361 transitions. [2024-11-28 04:38:11,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4361 transitions. [2024-11-28 04:38:11,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:38:11,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:11,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:11,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:38:11,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:11,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash 164806884, now seen corresponding path program 1 times [2024-11-28 04:38:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:11,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135611113] [2024-11-28 04:38:11,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:38:11,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135611113] [2024-11-28 04:38:11,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135611113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:11,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:11,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:11,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092350024] [2024-11-28 04:38:11,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:11,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:11,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:11,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:11,911 INFO L87 Difference]: Start difference. First operand 3098 states and 4361 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:12,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:12,588 INFO L93 Difference]: Finished difference Result 18166 states and 25631 transitions. [2024-11-28 04:38:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:12,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-28 04:38:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:12,664 INFO L225 Difference]: With dead ends: 18166 [2024-11-28 04:38:12,664 INFO L226 Difference]: Without dead ends: 15988 [2024-11-28 04:38:12,672 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 [2024-11-28 04:38:12,673 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 556 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:12,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 720 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:38:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15988 states. [2024-11-28 04:38:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15988 to 5722. [2024-11-28 04:38:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5721 states have (on average 1.4027267960146828) internal successors, (8025), 5721 states have internal predecessors, (8025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 8025 transitions. [2024-11-28 04:38:13,191 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 8025 transitions. Word has length 78 [2024-11-28 04:38:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:13,191 INFO L471 AbstractCegarLoop]: Abstraction has 5722 states and 8025 transitions. [2024-11-28 04:38:13,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 8025 transitions. [2024-11-28 04:38:13,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:38:13,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:13,194 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:13,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:38:13,194 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:13,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:13,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1666925284, now seen corresponding path program 1 times [2024-11-28 04:38:13,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:13,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438341669] [2024-11-28 04:38:13,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:13,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:38:13,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:13,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438341669] [2024-11-28 04:38:13,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438341669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:13,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736002706] [2024-11-28 04:38:13,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:13,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:13,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:13,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:13,428 INFO L87 Difference]: Start difference. First operand 5722 states and 8025 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:14,206 INFO L93 Difference]: Finished difference Result 21222 states and 29919 transitions. [2024-11-28 04:38:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:14,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-28 04:38:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:14,288 INFO L225 Difference]: With dead ends: 21222 [2024-11-28 04:38:14,288 INFO L226 Difference]: Without dead ends: 18164 [2024-11-28 04:38:14,296 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 [2024-11-28 04:38:14,297 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 603 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:14,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 745 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18164 states. [2024-11-28 04:38:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18164 to 9866. [2024-11-28 04:38:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9866 states, 9865 states have (on average 1.3989863152559554) internal successors, (13801), 9865 states have internal predecessors, (13801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9866 states to 9866 states and 13801 transitions. [2024-11-28 04:38:15,054 INFO L78 Accepts]: Start accepts. Automaton has 9866 states and 13801 transitions. Word has length 78 [2024-11-28 04:38:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:15,055 INFO L471 AbstractCegarLoop]: Abstraction has 9866 states and 13801 transitions. [2024-11-28 04:38:15,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9866 states and 13801 transitions. [2024-11-28 04:38:15,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:38:15,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:15,058 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:15,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:38:15,059 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:15,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:15,060 INFO L85 PathProgramCache]: Analyzing trace with hash -548543516, now seen corresponding path program 1 times [2024-11-28 04:38:15,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:15,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503292008] [2024-11-28 04:38:15,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:15,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:38:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:15,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503292008] [2024-11-28 04:38:15,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503292008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:15,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008326343] [2024-11-28 04:38:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:15,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:15,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:15,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:15,289 INFO L87 Difference]: Start difference. First operand 9866 states and 13801 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:16,082 INFO L93 Difference]: Finished difference Result 24278 states and 34191 transitions. [2024-11-28 04:38:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:16,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 78 [2024-11-28 04:38:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:16,143 INFO L225 Difference]: With dead ends: 24278 [2024-11-28 04:38:16,143 INFO L226 Difference]: Without dead ends: 21220 [2024-11-28 04:38:16,153 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 [2024-11-28 04:38:16,154 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 652 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:16,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 692 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21220 states. [2024-11-28 04:38:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21220 to 12922. [2024-11-28 04:38:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12922 states, 12921 states have (on average 1.3987307483940872) internal successors, (18073), 12921 states have internal predecessors, (18073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12922 states to 12922 states and 18073 transitions. [2024-11-28 04:38:16,936 INFO L78 Accepts]: Start accepts. Automaton has 12922 states and 18073 transitions. Word has length 78 [2024-11-28 04:38:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:16,936 INFO L471 AbstractCegarLoop]: Abstraction has 12922 states and 18073 transitions. [2024-11-28 04:38:16,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 12922 states and 18073 transitions. [2024-11-28 04:38:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:38:16,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:16,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:16,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:38:16,941 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:16,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:16,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1232389348, now seen corresponding path program 1 times [2024-11-28 04:38:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:16,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5964946] [2024-11-28 04:38:16,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:16,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 04:38:17,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5964946] [2024-11-28 04:38:17,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5964946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992435376] [2024-11-28 04:38:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:17,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:17,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:17,183 INFO L87 Difference]: Start difference. First operand 12922 states and 18073 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2024-11-28 04:38:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:18,114 INFO L93 Difference]: Finished difference Result 27334 states and 38463 transitions. [2024-11-28 04:38:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:18,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 78 [2024-11-28 04:38:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:18,191 INFO L225 Difference]: With dead ends: 27334 [2024-11-28 04:38:18,191 INFO L226 Difference]: Without dead ends: 24276 [2024-11-28 04:38:18,202 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 [2024-11-28 04:38:18,203 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 606 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:18,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 736 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:38:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24276 states. [2024-11-28 04:38:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24276 to 15978. [2024-11-28 04:38:19,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15978 states, 15977 states have (on average 1.398572948613632) internal successors, (22345), 15977 states have internal predecessors, (22345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15978 states to 15978 states and 22345 transitions. [2024-11-28 04:38:19,230 INFO L78 Accepts]: Start accepts. Automaton has 15978 states and 22345 transitions. Word has length 78 [2024-11-28 04:38:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:19,231 INFO L471 AbstractCegarLoop]: Abstraction has 15978 states and 22345 transitions. [2024-11-28 04:38:19,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2024-11-28 04:38:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 15978 states and 22345 transitions. [2024-11-28 04:38:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:38:19,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:19,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:19,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:38:19,235 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:19,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash 428663268, now seen corresponding path program 1 times [2024-11-28 04:38:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:19,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063550838] [2024-11-28 04:38:19,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:19,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:38:19,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:19,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063550838] [2024-11-28 04:38:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063550838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:19,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:38:19,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407876728] [2024-11-28 04:38:19,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:19,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:19,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:19,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:19,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:19,473 INFO L87 Difference]: Start difference. First operand 15978 states and 22345 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:20,463 INFO L93 Difference]: Finished difference Result 30390 states and 42735 transitions. [2024-11-28 04:38:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-28 04:38:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:20,540 INFO L225 Difference]: With dead ends: 30390 [2024-11-28 04:38:20,540 INFO L226 Difference]: Without dead ends: 27332 [2024-11-28 04:38:20,552 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 [2024-11-28 04:38:20,554 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 558 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:20,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 833 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:38:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27332 states. [2024-11-28 04:38:21,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27332 to 19034. [2024-11-28 04:38:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19034 states, 19033 states have (on average 1.3984658225187832) internal successors, (26617), 19033 states have internal predecessors, (26617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19034 states to 19034 states and 26617 transitions. [2024-11-28 04:38:21,474 INFO L78 Accepts]: Start accepts. Automaton has 19034 states and 26617 transitions. Word has length 78 [2024-11-28 04:38:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:21,474 INFO L471 AbstractCegarLoop]: Abstraction has 19034 states and 26617 transitions. [2024-11-28 04:38:21,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19034 states and 26617 transitions. [2024-11-28 04:38:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:38:21,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:21,479 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:21,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:38:21,480 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:21,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:21,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1829432196, now seen corresponding path program 1 times [2024-11-28 04:38:21,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:21,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973488434] [2024-11-28 04:38:21,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973488434] [2024-11-28 04:38:21,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973488434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:21,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:21,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425535196] [2024-11-28 04:38:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:21,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:21,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:21,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:21,635 INFO L87 Difference]: Start difference. First operand 19034 states and 26617 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:22,214 INFO L93 Difference]: Finished difference Result 38030 states and 53195 transitions. [2024-11-28 04:38:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:22,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-28 04:38:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:22,263 INFO L225 Difference]: With dead ends: 38030 [2024-11-28 04:38:22,263 INFO L226 Difference]: Without dead ends: 19036 [2024-11-28 04:38:22,282 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 [2024-11-28 04:38:22,284 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 45 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:22,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 233 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19036 states. [2024-11-28 04:38:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19036 to 19034. [2024-11-28 04:38:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19034 states, 19033 states have (on average 1.382913886407818) internal successors, (26321), 19033 states have internal predecessors, (26321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19034 states to 19034 states and 26321 transitions. [2024-11-28 04:38:23,133 INFO L78 Accepts]: Start accepts. Automaton has 19034 states and 26321 transitions. Word has length 79 [2024-11-28 04:38:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:23,133 INFO L471 AbstractCegarLoop]: Abstraction has 19034 states and 26321 transitions. [2024-11-28 04:38:23,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 19034 states and 26321 transitions. [2024-11-28 04:38:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:38:23,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:23,138 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:23,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:38:23,138 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:23,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1720663204, now seen corresponding path program 1 times [2024-11-28 04:38:23,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:23,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926008111] [2024-11-28 04:38:23,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926008111] [2024-11-28 04:38:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926008111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:23,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:23,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853678703] [2024-11-28 04:38:23,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:23,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:23,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:23,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:23,317 INFO L87 Difference]: Start difference. First operand 19034 states and 26321 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:23,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:23,637 INFO L93 Difference]: Finished difference Result 26130 states and 36224 transitions. [2024-11-28 04:38:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:23,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-28 04:38:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:23,660 INFO L225 Difference]: With dead ends: 26130 [2024-11-28 04:38:23,661 INFO L226 Difference]: Without dead ends: 7136 [2024-11-28 04:38:23,680 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 [2024-11-28 04:38:23,681 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 39 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:23,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 230 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2024-11-28 04:38:24,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 7127. [2024-11-28 04:38:24,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7127 states, 7126 states have (on average 1.3794555150154364) internal successors, (9830), 7126 states have internal predecessors, (9830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7127 states to 7127 states and 9830 transitions. [2024-11-28 04:38:24,031 INFO L78 Accepts]: Start accepts. Automaton has 7127 states and 9830 transitions. Word has length 80 [2024-11-28 04:38:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:24,032 INFO L471 AbstractCegarLoop]: Abstraction has 7127 states and 9830 transitions. [2024-11-28 04:38:24,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7127 states and 9830 transitions. [2024-11-28 04:38:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:38:24,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:24,035 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:24,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:38:24,036 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:24,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:24,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1579763082, now seen corresponding path program 1 times [2024-11-28 04:38:24,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:24,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725863001] [2024-11-28 04:38:24,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:24,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:24,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:24,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725863001] [2024-11-28 04:38:24,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725863001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:24,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:24,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:24,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254457029] [2024-11-28 04:38:24,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:24,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:24,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:24,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:24,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:24,239 INFO L87 Difference]: Start difference. First operand 7127 states and 9830 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:24,409 INFO L93 Difference]: Finished difference Result 10667 states and 14720 transitions. [2024-11-28 04:38:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:24,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-28 04:38:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:24,424 INFO L225 Difference]: With dead ends: 10667 [2024-11-28 04:38:24,424 INFO L226 Difference]: Without dead ends: 3593 [2024-11-28 04:38:24,434 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 [2024-11-28 04:38:24,434 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 41 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:24,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 209 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2024-11-28 04:38:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3591. [2024-11-28 04:38:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3590 states have (on average 1.3621169916434541) internal successors, (4890), 3590 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4890 transitions. [2024-11-28 04:38:24,622 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4890 transitions. Word has length 81 [2024-11-28 04:38:24,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:24,623 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4890 transitions. [2024-11-28 04:38:24,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4890 transitions. [2024-11-28 04:38:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:38:24,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:24,625 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:24,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:38:24,626 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:24,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1460768744, now seen corresponding path program 1 times [2024-11-28 04:38:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:24,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521865761] [2024-11-28 04:38:24,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:24,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:24,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:24,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521865761] [2024-11-28 04:38:24,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521865761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:24,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:24,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:24,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108958442] [2024-11-28 04:38:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:24,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:24,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:24,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:24,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:24,795 INFO L87 Difference]: Start difference. First operand 3591 states and 4890 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:24,848 INFO L93 Difference]: Finished difference Result 5363 states and 7310 transitions. [2024-11-28 04:38:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:24,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-28 04:38:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:24,855 INFO L225 Difference]: With dead ends: 5363 [2024-11-28 04:38:24,855 INFO L226 Difference]: Without dead ends: 1825 [2024-11-28 04:38:24,859 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 [2024-11-28 04:38:24,859 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 38 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:24,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 194 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:24,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2024-11-28 04:38:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1823. [2024-11-28 04:38:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1822 states have (on average 1.3424807903402853) internal successors, (2446), 1822 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2446 transitions. [2024-11-28 04:38:24,915 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2446 transitions. Word has length 83 [2024-11-28 04:38:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:24,916 INFO L471 AbstractCegarLoop]: Abstraction has 1823 states and 2446 transitions. [2024-11-28 04:38:24,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2446 transitions. [2024-11-28 04:38:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:38:24,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:24,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:24,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:38:24,918 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:24,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:24,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1888914394, now seen corresponding path program 1 times [2024-11-28 04:38:24,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:24,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579066113] [2024-11-28 04:38:24,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:24,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:25,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:25,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579066113] [2024-11-28 04:38:25,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579066113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:25,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:25,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:25,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974009363] [2024-11-28 04:38:25,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:25,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:25,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:25,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:25,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:25,030 INFO L87 Difference]: Start difference. First operand 1823 states and 2446 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:25,061 INFO L93 Difference]: Finished difference Result 2711 states and 3644 transitions. [2024-11-28 04:38:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:25,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-28 04:38:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:25,065 INFO L225 Difference]: With dead ends: 2711 [2024-11-28 04:38:25,065 INFO L226 Difference]: Without dead ends: 941 [2024-11-28 04:38:25,066 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 [2024-11-28 04:38:25,067 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 35 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:25,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 179 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:38:25,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-28 04:38:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-11-28 04:38:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 938 states have (on average 1.3187633262260128) internal successors, (1237), 938 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1237 transitions. [2024-11-28 04:38:25,097 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1237 transitions. Word has length 85 [2024-11-28 04:38:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:25,097 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1237 transitions. [2024-11-28 04:38:25,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1237 transitions. [2024-11-28 04:38:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:38:25,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:25,099 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:25,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:38:25,100 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:25,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash -911684020, now seen corresponding path program 1 times [2024-11-28 04:38:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:25,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200123832] [2024-11-28 04:38:25,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:38:25,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:25,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200123832] [2024-11-28 04:38:25,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200123832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:25,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883746181] [2024-11-28 04:38:25,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:25,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:25,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:25,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:25,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:38:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:25,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:38:25,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:25,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:26,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883746181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:26,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:26,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 6] total 13 [2024-11-28 04:38:26,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497637321] [2024-11-28 04:38:26,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:26,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:38:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:26,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:38:26,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:38:26,609 INFO L87 Difference]: Start difference. First operand 939 states and 1237 transitions. Second operand has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:26,998 INFO L93 Difference]: Finished difference Result 3872 states and 5113 transitions. [2024-11-28 04:38:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:38:26,999 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 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 87 [2024-11-28 04:38:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:27,009 INFO L225 Difference]: With dead ends: 3872 [2024-11-28 04:38:27,009 INFO L226 Difference]: Without dead ends: 2958 [2024-11-28 04:38:27,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:38:27,012 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 400 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:27,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 970 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:38:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-11-28 04:38:27,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2882. [2024-11-28 04:38:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2881 states have (on average 1.291218326969802) internal successors, (3720), 2881 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3720 transitions. [2024-11-28 04:38:27,126 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3720 transitions. Word has length 87 [2024-11-28 04:38:27,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:27,127 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 3720 transitions. [2024-11-28 04:38:27,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3720 transitions. [2024-11-28 04:38:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:38:27,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:27,128 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:27,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:38:27,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:27,330 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:27,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:27,334 INFO L85 PathProgramCache]: Analyzing trace with hash 54120340, now seen corresponding path program 1 times [2024-11-28 04:38:27,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:27,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040091898] [2024-11-28 04:38:27,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:27,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040091898] [2024-11-28 04:38:29,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040091898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007145461] [2024-11-28 04:38:29,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:29,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:29,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:29,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:29,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:38:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:29,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:38:29,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:30,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:31,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007145461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:31,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:31,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-28 04:38:31,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215092123] [2024-11-28 04:38:31,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:31,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:38:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:31,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:38:31,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:38:31,922 INFO L87 Difference]: Start difference. First operand 2882 states and 3720 transitions. Second operand has 26 states, 26 states have (on average 8.576923076923077) internal successors, (223), 25 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:32,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:32,813 INFO L93 Difference]: Finished difference Result 8434 states and 10942 transitions. [2024-11-28 04:38:32,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:38:32,814 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.576923076923077) internal successors, (223), 25 states have internal predecessors, (223), 0 states have call successors, (0), 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 88 [2024-11-28 04:38:32,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:32,826 INFO L225 Difference]: With dead ends: 8434 [2024-11-28 04:38:32,826 INFO L226 Difference]: Without dead ends: 5788 [2024-11-28 04:38:32,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=292, Invalid=1040, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:38:32,831 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 1154 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:32,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 589 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:38:32,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2024-11-28 04:38:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5710. [2024-11-28 04:38:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 1.276580837274479) internal successors, (7288), 5709 states have internal predecessors, (7288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 7288 transitions. [2024-11-28 04:38:33,026 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 7288 transitions. Word has length 88 [2024-11-28 04:38:33,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:33,026 INFO L471 AbstractCegarLoop]: Abstraction has 5710 states and 7288 transitions. [2024-11-28 04:38:33,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.576923076923077) internal successors, (223), 25 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 7288 transitions. [2024-11-28 04:38:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:38:33,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:33,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:33,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:38:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:33,228 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:33,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash 474297606, now seen corresponding path program 1 times [2024-11-28 04:38:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:33,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132952594] [2024-11-28 04:38:33,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:33,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:33,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132952594] [2024-11-28 04:38:33,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132952594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:33,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408941001] [2024-11-28 04:38:33,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:33,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:33,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:33,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:33,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:38:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:33,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:38:33,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:34,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:35,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408941001] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:35,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:35,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-28 04:38:35,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081414226] [2024-11-28 04:38:35,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:35,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:38:35,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:35,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:38:35,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:38:35,676 INFO L87 Difference]: Start difference. First operand 5710 states and 7288 transitions. Second operand has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 25 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:38,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:38,260 INFO L93 Difference]: Finished difference Result 27901 states and 35812 transitions. [2024-11-28 04:38:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:38:38,260 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 25 states have internal predecessors, (230), 0 states have call successors, (0), 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 88 [2024-11-28 04:38:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:38,305 INFO L225 Difference]: With dead ends: 27901 [2024-11-28 04:38:38,305 INFO L226 Difference]: Without dead ends: 22355 [2024-11-28 04:38:38,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=643, Invalid=2327, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:38:38,378 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 1847 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:38,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 771 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:38:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22355 states. [2024-11-28 04:38:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22355 to 22063. [2024-11-28 04:38:39,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22063 states, 22062 states have (on average 1.2555525337684708) internal successors, (27700), 22062 states have internal predecessors, (27700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22063 states to 22063 states and 27700 transitions. [2024-11-28 04:38:39,082 INFO L78 Accepts]: Start accepts. Automaton has 22063 states and 27700 transitions. Word has length 88 [2024-11-28 04:38:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:39,083 INFO L471 AbstractCegarLoop]: Abstraction has 22063 states and 27700 transitions. [2024-11-28 04:38:39,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 25 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 22063 states and 27700 transitions. [2024-11-28 04:38:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:38:39,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:39,085 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:39,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:38:39,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:39,290 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:39,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash 774171182, now seen corresponding path program 1 times [2024-11-28 04:38:39,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:39,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597403321] [2024-11-28 04:38:39,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597403321] [2024-11-28 04:38:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597403321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589888306] [2024-11-28 04:38:39,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:39,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:39,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:39,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:38:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:39,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:38:39,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:40,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:41,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589888306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:41,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:41,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-28 04:38:41,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213649397] [2024-11-28 04:38:41,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:41,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:38:41,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:41,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:38:41,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:38:41,424 INFO L87 Difference]: Start difference. First operand 22063 states and 27700 transitions. Second operand has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 22 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:42,480 INFO L93 Difference]: Finished difference Result 47030 states and 59220 transitions. [2024-11-28 04:38:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:38:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 22 states have internal predecessors, (195), 0 states have call successors, (0), 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 89 [2024-11-28 04:38:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:42,523 INFO L225 Difference]: With dead ends: 47030 [2024-11-28 04:38:42,523 INFO L226 Difference]: Without dead ends: 27358 [2024-11-28 04:38:42,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:38:42,540 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 642 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:42,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 568 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:38:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27358 states. [2024-11-28 04:38:43,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27358 to 27198. [2024-11-28 04:38:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27198 states, 27197 states have (on average 1.249917270287164) internal successors, (33994), 27197 states have internal predecessors, (33994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27198 states to 27198 states and 33994 transitions. [2024-11-28 04:38:43,912 INFO L78 Accepts]: Start accepts. Automaton has 27198 states and 33994 transitions. Word has length 89 [2024-11-28 04:38:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:43,913 INFO L471 AbstractCegarLoop]: Abstraction has 27198 states and 33994 transitions. [2024-11-28 04:38:43,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 22 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 27198 states and 33994 transitions. [2024-11-28 04:38:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:38:43,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:43,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:43,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:38:44,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:38:44,121 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:44,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash -765173898, now seen corresponding path program 1 times [2024-11-28 04:38:44,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:44,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202268483] [2024-11-28 04:38:44,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:44,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:44,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:44,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202268483] [2024-11-28 04:38:44,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202268483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76260610] [2024-11-28 04:38:44,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:44,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:44,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:44,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:44,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:38:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:44,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:38:44,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:45,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:47,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76260610] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:47,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:47,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-28 04:38:47,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602773304] [2024-11-28 04:38:47,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:47,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:38:47,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:47,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:38:47,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:38:47,138 INFO L87 Difference]: Start difference. First operand 27198 states and 33994 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:49,012 INFO L93 Difference]: Finished difference Result 78310 states and 98327 transitions. [2024-11-28 04:38:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:38:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-28 04:38:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:49,122 INFO L225 Difference]: With dead ends: 78310 [2024-11-28 04:38:49,122 INFO L226 Difference]: Without dead ends: 55017 [2024-11-28 04:38:49,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:38:49,148 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 910 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:49,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 475 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:38:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55017 states. [2024-11-28 04:38:51,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55017 to 54325. [2024-11-28 04:38:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54325 states, 54324 states have (on average 1.236433252337825) internal successors, (67168), 54324 states have internal predecessors, (67168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54325 states to 54325 states and 67168 transitions. [2024-11-28 04:38:51,333 INFO L78 Accepts]: Start accepts. Automaton has 54325 states and 67168 transitions. Word has length 90 [2024-11-28 04:38:51,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:51,333 INFO L471 AbstractCegarLoop]: Abstraction has 54325 states and 67168 transitions. [2024-11-28 04:38:51,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 54325 states and 67168 transitions. [2024-11-28 04:38:51,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:38:51,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:51,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:51,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:38:51,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:38:51,537 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:51,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1260141666, now seen corresponding path program 1 times [2024-11-28 04:38:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:51,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878434571] [2024-11-28 04:38:51,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:52,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878434571] [2024-11-28 04:38:52,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878434571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703395699] [2024-11-28 04:38:52,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:52,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:52,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:52,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:52,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:38:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:52,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:38:52,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:54,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:56,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703395699] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:56,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:38:56,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2024-11-28 04:38:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176123651] [2024-11-28 04:38:56,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:56,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:38:56,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:56,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:38:56,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:38:56,662 INFO L87 Difference]: Start difference. First operand 54325 states and 67168 transitions. Second operand has 36 states, 36 states have (on average 7.0) internal successors, (252), 36 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:07,641 INFO L93 Difference]: Finished difference Result 103087 states and 127585 transitions. [2024-11-28 04:39:07,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-28 04:39:07,642 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.0) internal successors, (252), 36 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-28 04:39:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:07,716 INFO L225 Difference]: With dead ends: 103087 [2024-11-28 04:39:07,716 INFO L226 Difference]: Without dead ends: 78397 [2024-11-28 04:39:07,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1997, Invalid=7123, Unknown=0, NotChecked=0, Total=9120 [2024-11-28 04:39:07,745 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 3970 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3970 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:07,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3970 Valid, 1395 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:39:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78397 states. [2024-11-28 04:39:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78397 to 47033. [2024-11-28 04:39:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47033 states, 47032 states have (on average 1.230608947099847) internal successors, (57878), 47032 states have internal predecessors, (57878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47033 states to 47033 states and 57878 transitions. [2024-11-28 04:39:09,799 INFO L78 Accepts]: Start accepts. Automaton has 47033 states and 57878 transitions. Word has length 91 [2024-11-28 04:39:09,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:09,800 INFO L471 AbstractCegarLoop]: Abstraction has 47033 states and 57878 transitions. [2024-11-28 04:39:09,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.0) internal successors, (252), 36 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:09,800 INFO L276 IsEmpty]: Start isEmpty. Operand 47033 states and 57878 transitions. [2024-11-28 04:39:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:39:09,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:09,803 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:09,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:39:10,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:39:10,003 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:10,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash 756725406, now seen corresponding path program 1 times [2024-11-28 04:39:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:10,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37782790] [2024-11-28 04:39:10,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:11,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:11,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37782790] [2024-11-28 04:39:11,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37782790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:11,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047353040] [2024-11-28 04:39:11,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:11,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:11,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:11,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:11,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:39:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:11,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:39:11,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:13,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:15,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047353040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:39:15,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:39:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 15] total 39 [2024-11-28 04:39:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483252601] [2024-11-28 04:39:15,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 04:39:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:15,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 04:39:15,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1314, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:39:15,936 INFO L87 Difference]: Start difference. First operand 47033 states and 57878 transitions. Second operand has 39 states, 39 states have (on average 6.102564102564102) internal successors, (238), 39 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:24,544 INFO L93 Difference]: Finished difference Result 103680 states and 128877 transitions. [2024-11-28 04:39:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-28 04:39:24,545 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.102564102564102) internal successors, (238), 39 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-28 04:39:24,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:24,644 INFO L225 Difference]: With dead ends: 103680 [2024-11-28 04:39:24,644 INFO L226 Difference]: Without dead ends: 77938 [2024-11-28 04:39:24,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2724 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2007, Invalid=7499, Unknown=0, NotChecked=0, Total=9506 [2024-11-28 04:39:24,663 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 2970 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:24,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 1817 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:39:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77938 states. [2024-11-28 04:39:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77938 to 38728. [2024-11-28 04:39:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38728 states, 38727 states have (on average 1.2258372711544916) internal successors, (47473), 38727 states have internal predecessors, (47473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38728 states to 38728 states and 47473 transitions. [2024-11-28 04:39:26,436 INFO L78 Accepts]: Start accepts. Automaton has 38728 states and 47473 transitions. Word has length 91 [2024-11-28 04:39:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:26,436 INFO L471 AbstractCegarLoop]: Abstraction has 38728 states and 47473 transitions. [2024-11-28 04:39:26,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.102564102564102) internal successors, (238), 39 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:26,436 INFO L276 IsEmpty]: Start isEmpty. Operand 38728 states and 47473 transitions. [2024-11-28 04:39:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:39:26,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:26,438 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:26,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:26,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:39:26,643 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:26,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1680628340, now seen corresponding path program 1 times [2024-11-28 04:39:26,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:26,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729204981] [2024-11-28 04:39:26,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:27,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729204981] [2024-11-28 04:39:27,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729204981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252924301] [2024-11-28 04:39:27,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:27,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:27,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:39:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:27,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:39:27,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:29,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252924301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:39:31,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:39:31,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 34 [2024-11-28 04:39:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448864230] [2024-11-28 04:39:31,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:31,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 04:39:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:31,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 04:39:31,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:39:31,040 INFO L87 Difference]: Start difference. First operand 38728 states and 47473 transitions. Second operand has 34 states, 34 states have (on average 5.9411764705882355) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:34,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:34,561 INFO L93 Difference]: Finished difference Result 46367 states and 56944 transitions. [2024-11-28 04:39:34,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:39:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.9411764705882355) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 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 92 [2024-11-28 04:39:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:34,594 INFO L225 Difference]: With dead ends: 46367 [2024-11-28 04:39:34,594 INFO L226 Difference]: Without dead ends: 24568 [2024-11-28 04:39:34,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=766, Invalid=2540, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 04:39:34,612 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 1727 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:34,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 1190 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:39:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24568 states. [2024-11-28 04:39:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24568 to 24554. [2024-11-28 04:39:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24554 states, 24553 states have (on average 1.2282409481529752) internal successors, (30157), 24553 states have internal predecessors, (30157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24554 states to 24554 states and 30157 transitions. [2024-11-28 04:39:35,714 INFO L78 Accepts]: Start accepts. Automaton has 24554 states and 30157 transitions. Word has length 92 [2024-11-28 04:39:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:35,714 INFO L471 AbstractCegarLoop]: Abstraction has 24554 states and 30157 transitions. [2024-11-28 04:39:35,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.9411764705882355) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 24554 states and 30157 transitions. [2024-11-28 04:39:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:39:35,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:35,718 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:35,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:39:35,918 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:35,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash 410831778, now seen corresponding path program 1 times [2024-11-28 04:39:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324540858] [2024-11-28 04:39:35,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:37,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:37,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324540858] [2024-11-28 04:39:37,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324540858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546045867] [2024-11-28 04:39:37,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:37,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:37,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:39:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:37,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:39:37,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 29 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:39,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:42,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546045867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:39:42,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:39:42,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-11-28 04:39:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129204117] [2024-11-28 04:39:42,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:42,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 04:39:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:42,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 04:39:42,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1063, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:39:42,846 INFO L87 Difference]: Start difference. First operand 24554 states and 30157 transitions. Second operand has 35 states, 35 states have (on average 11.714285714285714) internal successors, (410), 34 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:49,171 INFO L93 Difference]: Finished difference Result 43986 states and 54153 transitions. [2024-11-28 04:39:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 04:39:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 11.714285714285714) internal successors, (410), 34 states have internal predecessors, (410), 0 states have call successors, (0), 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 143 [2024-11-28 04:39:49,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:49,194 INFO L225 Difference]: With dead ends: 43986 [2024-11-28 04:39:49,194 INFO L226 Difference]: Without dead ends: 24832 [2024-11-28 04:39:49,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1161, Invalid=4241, Unknown=0, NotChecked=0, Total=5402 [2024-11-28 04:39:49,205 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 1882 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:49,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 1232 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:39:49,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24832 states. [2024-11-28 04:39:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24832 to 24554. [2024-11-28 04:39:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24554 states, 24553 states have (on average 1.2145562660367368) internal successors, (29821), 24553 states have internal predecessors, (29821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24554 states to 24554 states and 29821 transitions. [2024-11-28 04:39:50,847 INFO L78 Accepts]: Start accepts. Automaton has 24554 states and 29821 transitions. Word has length 143 [2024-11-28 04:39:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:50,848 INFO L471 AbstractCegarLoop]: Abstraction has 24554 states and 29821 transitions. [2024-11-28 04:39:50,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.714285714285714) internal successors, (410), 34 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:39:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 24554 states and 29821 transitions. [2024-11-28 04:39:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:39:50,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:50,851 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:50,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:39:51,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:51,051 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:51,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:51,052 INFO L85 PathProgramCache]: Analyzing trace with hash 174420244, now seen corresponding path program 1 times [2024-11-28 04:39:51,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:51,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972738445] [2024-11-28 04:39:51,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:51,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 41 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:52,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:52,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972738445] [2024-11-28 04:39:52,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972738445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:52,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393930423] [2024-11-28 04:39:52,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:52,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:52,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:52,684 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:52,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:39:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:52,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:39:52,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 66 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:54,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 41 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:39:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393930423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:39:57,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:39:57,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 15] total 35 [2024-11-28 04:39:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040959811] [2024-11-28 04:39:57,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:57,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:39:57,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:57,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:39:57,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:39:57,761 INFO L87 Difference]: Start difference. First operand 24554 states and 29821 transitions. Second operand has 36 states, 36 states have (on average 9.333333333333334) internal successors, (336), 35 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:02,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:02,336 INFO L93 Difference]: Finished difference Result 84704 states and 104343 transitions. [2024-11-28 04:40:02,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:40:02,336 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.333333333333334) internal successors, (336), 35 states have internal predecessors, (336), 0 states have call successors, (0), 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 143 [2024-11-28 04:40:02,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:02,382 INFO L225 Difference]: With dead ends: 84704 [2024-11-28 04:40:02,382 INFO L226 Difference]: Without dead ends: 61023 [2024-11-28 04:40:02,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=622, Invalid=2458, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:40:02,394 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 946 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:02,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1286 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:40:02,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61023 states. [2024-11-28 04:40:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61023 to 51443. [2024-11-28 04:40:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51443 states, 51442 states have (on average 1.2047937482990552) internal successors, (61977), 51442 states have internal predecessors, (61977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51443 states to 51443 states and 61977 transitions. [2024-11-28 04:40:05,465 INFO L78 Accepts]: Start accepts. Automaton has 51443 states and 61977 transitions. Word has length 143 [2024-11-28 04:40:05,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:05,466 INFO L471 AbstractCegarLoop]: Abstraction has 51443 states and 61977 transitions. [2024-11-28 04:40:05,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.333333333333334) internal successors, (336), 35 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 51443 states and 61977 transitions. [2024-11-28 04:40:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:40:05,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:05,472 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:05,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:40:05,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:05,672 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:05,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2034053088, now seen corresponding path program 1 times [2024-11-28 04:40:05,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:05,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778429852] [2024-11-28 04:40:05,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:07,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778429852] [2024-11-28 04:40:07,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778429852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:07,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929410568] [2024-11-28 04:40:07,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:07,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:07,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:07,080 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:07,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:40:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:07,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:40:07,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 36 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:08,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:11,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929410568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:40:11,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:40:11,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 30 [2024-11-28 04:40:11,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107745755] [2024-11-28 04:40:11,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:11,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 04:40:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:11,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 04:40:11,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:40:11,124 INFO L87 Difference]: Start difference. First operand 51443 states and 61977 transitions. Second operand has 31 states, 31 states have (on average 11.419354838709678) internal successors, (354), 30 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:14,714 INFO L93 Difference]: Finished difference Result 83473 states and 101124 transitions. [2024-11-28 04:40:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:40:14,714 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 11.419354838709678) internal successors, (354), 30 states have internal predecessors, (354), 0 states have call successors, (0), 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 144 [2024-11-28 04:40:14,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:14,774 INFO L225 Difference]: With dead ends: 83473 [2024-11-28 04:40:14,774 INFO L226 Difference]: Without dead ends: 56487 [2024-11-28 04:40:14,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=438, Invalid=1818, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:40:14,793 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 1131 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:14,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 987 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:40:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56487 states. [2024-11-28 04:40:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56487 to 51443. [2024-11-28 04:40:18,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51443 states, 51442 states have (on average 1.198262120446328) internal successors, (61641), 51442 states have internal predecessors, (61641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51443 states to 51443 states and 61641 transitions. [2024-11-28 04:40:18,174 INFO L78 Accepts]: Start accepts. Automaton has 51443 states and 61641 transitions. Word has length 144 [2024-11-28 04:40:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:18,175 INFO L471 AbstractCegarLoop]: Abstraction has 51443 states and 61641 transitions. [2024-11-28 04:40:18,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.419354838709678) internal successors, (354), 30 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 51443 states and 61641 transitions. [2024-11-28 04:40:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:40:18,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:18,185 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:18,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:40:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:18,385 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:18,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1003904252, now seen corresponding path program 1 times [2024-11-28 04:40:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:18,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288661482] [2024-11-28 04:40:18,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:18,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 25 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288661482] [2024-11-28 04:40:19,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288661482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:19,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557224620] [2024-11-28 04:40:19,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:19,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:19,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:19,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:19,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:40:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:19,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:40:19,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 30 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:21,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 25 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:23,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557224620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:40:23,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:40:23,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-28 04:40:23,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622960858] [2024-11-28 04:40:23,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:23,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:40:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:23,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:40:23,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:40:23,190 INFO L87 Difference]: Start difference. First operand 51443 states and 61641 transitions. Second operand has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:27,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:27,369 INFO L93 Difference]: Finished difference Result 81073 states and 97492 transitions. [2024-11-28 04:40:27,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:40:27,370 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 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 145 [2024-11-28 04:40:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:27,421 INFO L225 Difference]: With dead ends: 81073 [2024-11-28 04:40:27,421 INFO L226 Difference]: Without dead ends: 54231 [2024-11-28 04:40:27,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=322, Invalid=1160, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:40:27,432 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 719 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:27,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1015 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:40:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54231 states. [2024-11-28 04:40:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54231 to 51443. [2024-11-28 04:40:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51443 states, 51442 states have (on average 1.1917304925936005) internal successors, (61305), 51442 states have internal predecessors, (61305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51443 states to 51443 states and 61305 transitions. [2024-11-28 04:40:30,885 INFO L78 Accepts]: Start accepts. Automaton has 51443 states and 61305 transitions. Word has length 145 [2024-11-28 04:40:30,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:30,886 INFO L471 AbstractCegarLoop]: Abstraction has 51443 states and 61305 transitions. [2024-11-28 04:40:30,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:40:30,886 INFO L276 IsEmpty]: Start isEmpty. Operand 51443 states and 61305 transitions. [2024-11-28 04:40:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:40:30,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:30,892 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:30,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:31,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 04:40:31,092 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:31,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:31,093 INFO L85 PathProgramCache]: Analyzing trace with hash -218782512, now seen corresponding path program 1 times [2024-11-28 04:40:31,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:31,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110653304] [2024-11-28 04:40:31,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:31,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:38,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:38,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110653304] [2024-11-28 04:40:38,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110653304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:38,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101112632] [2024-11-28 04:40:38,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:38,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:38,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:38,806 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:38,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:40:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:39,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:40:39,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 25 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:42,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 25 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:40:48,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101112632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:40:48,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:40:48,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 18, 18] total 78 [2024-11-28 04:40:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822652176] [2024-11-28 04:40:48,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:48,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-11-28 04:40:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:48,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-11-28 04:40:48,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=5706, Unknown=0, NotChecked=0, Total=6006 [2024-11-28 04:40:48,164 INFO L87 Difference]: Start difference. First operand 51443 states and 61305 transitions. Second operand has 78 states, 78 states have (on average 5.358974358974359) internal successors, (418), 78 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:52,124 INFO L93 Difference]: Finished difference Result 142405 states and 168988 transitions. [2024-11-28 04:42:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-28 04:42:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 5.358974358974359) internal successors, (418), 78 states have internal predecessors, (418), 0 states have call successors, (0), 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 146 [2024-11-28 04:42:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:52,229 INFO L225 Difference]: With dead ends: 142405 [2024-11-28 04:42:52,229 INFO L226 Difference]: Without dead ends: 128107 [2024-11-28 04:42:52,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24518 ImplicationChecksByTransitivity, 108.1s TimeCoverageRelationStatistics Valid=9700, Invalid=67306, Unknown=0, NotChecked=0, Total=77006 [2024-11-28 04:42:52,251 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 7756 mSDsluCounter, 7058 mSDsCounter, 0 mSdLazyCounter, 11395 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7756 SdHoareTripleChecker+Valid, 7236 SdHoareTripleChecker+Invalid, 11864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 11395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:52,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7756 Valid, 7236 Invalid, 11864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [469 Valid, 11395 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-11-28 04:42:52,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128107 states. [2024-11-28 04:42:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128107 to 64411. [2024-11-28 04:42:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64411 states, 64410 states have (on average 1.187781400403664) internal successors, (76505), 64410 states have internal predecessors, (76505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64411 states to 64411 states and 76505 transitions. [2024-11-28 04:42:57,858 INFO L78 Accepts]: Start accepts. Automaton has 64411 states and 76505 transitions. Word has length 146 [2024-11-28 04:42:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:57,859 INFO L471 AbstractCegarLoop]: Abstraction has 64411 states and 76505 transitions. [2024-11-28 04:42:57,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.358974358974359) internal successors, (418), 78 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 64411 states and 76505 transitions. [2024-11-28 04:42:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:42:57,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:57,865 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:57,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:42:58,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:42:58,066 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:58,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1973025876, now seen corresponding path program 1 times [2024-11-28 04:42:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:58,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033464137] [2024-11-28 04:42:58,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:58,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:42:59,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:59,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033464137] [2024-11-28 04:42:59,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033464137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:59,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749681378] [2024-11-28 04:42:59,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:59,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:59,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:59,324 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:59,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_344ff0a8-d227-44a2-8e66-65f59fa5eaa2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:42:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:59,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-28 04:42:59,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:43:07,500 INFO L312 TraceCheckSpWp]: Computing backward predicates...